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Artykuły w czasopismach na temat „Water pipes and soil samples”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Jiru, Moera Gutu, Mesay Alemu Tolcha, and Dessalegn A. Yeshanew. "Investigation of Soil Physicochemical Effects on the Corrosion of Buried Iron Pipes." Journal of Basic & Applied Sciences 17 (August 17, 2021): 95–106. http://dx.doi.org/10.29169/1927-5129.2021.17.11.

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Soil corrosivity was an active problem of water pipeline damaged by corrosion that affects the performance of pipe manufacturers. In Addis ababa, groundwater pipelines were facing breakage and like due to corrosion damage of the pipes. The population of nearly four million were facing a shortage of clean and continuous water supply. Maintenace and replacing old pipes with new ones increased additional cost and delay of water supply for the city. For this investigation of corrosion, causes were conducted which soil property is the one factor. Investigation of soil corrosivity for a given specif

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Repe, Blaž, and Tina Pavlin. "Subaqueous soil sequence in marine waters of the Strunjan Bay." Dela, no. 59 (December 19, 2023): 151–77. http://dx.doi.org/10.4312/dela.59.151-177.

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Soil research focuses mainly on soils on land, but the process of soil formation also takes place in shallow waters. Subaqueous soils form below the water surface, mainly on the bottom of shallow, stagnant waters such as bogs, swamps, lakes, and shoals in the sea. Three subaquatic soil profiles were investigated in the Strunjan Bay to study them in detail. The sites for the soil investigation were selected after observing the movement of seawater and thus its possible influence on subaquatic soils. All the soils studied are permanently and year-round under water. Therefore, all soil samples we

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Regmi, Shrawan K., Kumar P. Dahal, and Jagadeesh Bhattarai. "Soil corrosivity to the buried-pipes used in Lalitpur, Kathmandu Valley, Nepal." Nepal Journal of Environmental Science 3 (December 7, 2015): 15–20. http://dx.doi.org/10.3126/njes.v3i0.22730.

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Six soil parameters (moisture content, pH, resistivity, oxidation-reduction potential, chloride and sulfate) of 23 samples were analyzed using standard methods for their corrosive nature towards the buried galvanized-steel and cast-iron pipes used to supply drinking water in three areas (Tikathali, Imadol- KA and Imadol-KHA) of Lalitpur district of Kathmandu Valley. Amounts of these six soil parameters in the collected 23 samples were found to be of 11–37% moisture content, 6.1–8.4 pH, 0.3330 x 104– 4.7620 x104 Ohm.cm resistivity, 317–553 mV (SHE) oxidation-reduction potential, 14–75 ppm chlor

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4

Arak, Ali Asim Mutar, Zainab Thamer obeis Hussein, Baraa Amer Hamid Qadir, Haider Abbas Shadhan Abd, and Riyam Kareem Tlayyip Hamoud. "COMPARISON BETWEEN THE TYPES OF HYDROPONICS AND REGULAR CULTIVATION IN THE SOIL AND THEIR IMPACT ON THE GROWTH OF THE LETTUCE CROP." European Journal of Medical Genetics and Clinical Biology 1, no. 7 (2024): 156–66. http://dx.doi.org/10.61796/jmgcb.v1i7.742.

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This study aimed compare the morphological properties of lettuce growth in different model of cultivation (soil, cork and water pipes). Samples of lettuce plants were cultivated in three models of cultivation. The first model was regular cultivation in soil, the second model was agriculture using water pipes and the third model was hydroponic using cork. After two months, the properties of each sample, including total length of plant, length of stem to end of leaf, length of root, length of leaves and number of roots. According to the result in this study, length of total plant, root, leaves a

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5

Hossain, Zahid, MdAriful Hasan, and Rouzbeh Ghabchi. "Neural Network Based Estimation of Service Life of Different Metal Culverts in Arkansas." Advances in Civil Engineering 2022 (January 4, 2022): 1–10. http://dx.doi.org/10.1155/2022/6860287.

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The Arkansas Department of Transportation (ARDOT) uses different types of metal culverts and cross-drains. Service lives of these culverts are largely influenced by the corrosion of the metals used in these culverts. Corrosion of metallic parts in any soil-water environment is governed by geochemical and electrochemical properties of the soils and waters. Many transportation agencies including ARDOT primarily focus on investigating the physical and mechanical properties of soils rather than their chemical aspects. The main objective of this study is to analyze the geotechnical and geochemical

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6

Salisu, Abdullahi, Wayayok Aimrun, Ahmad F. Abdullah, and &. Rowshon Md Kamal. "Characterization of Clay Soil and Zolite Powder as Materials for the Production of Irrigation Porous Pipes." Basrah Journal of Agricultural Sciences 34 (August 20, 2021): 100–107. http://dx.doi.org/10.37077/25200860.2021.34.sp1.11.

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The uses of clay pipes in irrigation water management are becoming popular, especially in arid and semi-arid soils. The study examined clay and zeolite materials for irrigation pipes, and this paper reported characteristic properties of these materials. Hydrometer, pychnometer and core sampler methods were for soil physical properties determination. Consistency tests using (Atterberg method) and analytical techniques (Scanning Electron Microscopy, SEM and Energy Dispersive Spectroscopy, EDS) for samples analyses. The results indicate the soil to contain 11 % sand, 34 % silt and 55 % clay fract

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7

Seica, Michael V., Jeffrey A. Packer, M. WF Grabinsky, and Barry J. Adams. "Evaluation of the properties of Toronto iron water mains and surrounding soil." Canadian Journal of Civil Engineering 29, no. 2 (2002): 222–37. http://dx.doi.org/10.1139/l01-090.

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The problem of ageing water pipes manifesting leaks and breaks is common to municipalities throughout Canada, North America, and the world. Among them, the City of Toronto has been confronted with water main infrastructure problems, currently encountering a break rate of roughly two occurrences per week over a network of 5347 km. The appropriate corrective action, which aims to restore pipe integrity and prevent future breaks and leaks, should be decided based on a general knowledge of the state of deterioration of the water main network, a thorough understanding of the governing failure modes

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8

Doyle, Garry, Michael V. Seica, and Murray WF Grabinsky. "The role of soil in the external corrosion of cast iron water mains in Toronto, Canada." Canadian Geotechnical Journal 40, no. 2 (2003): 225–36. http://dx.doi.org/10.1139/t02-106.

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External corrosion is a major factor contributing to the deterioration of cast iron water mains; it weakens the pipe wall, which increases the risk of failure. External corrosion is a function of the interaction between the pipeline and the soil that surrounds it. The aggressiveness of soil towards cast iron is affected by soil properties such as resistivity, pH, and the presence of sulphate reducing bacteria. Water main sections and accompanying soil samples were collected from locations across Toronto within the framework of a comprehensive research project over a 2 year period. After carefu

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9

Al-Obaidi, Ahmed A., and Dalia Alsalih. "Experimental Investigation of Capillary Rise in Unsaturated Gypseous Soils." E3S Web of Conferences 427 (2023): 01016. http://dx.doi.org/10.1051/e3sconf/202342701016.

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Capillary rise is a phenomenon that must be considered an inevitable factor when dealing with unsaturated gypseous soil. This study investigates the behavior of gypseous unsaturated soil under capillary action, where different gypsum content and soil densities are experimentally tested in a developed laboratory model consisting of Transparent pipes 1 m long and 0.05 m in diameter. All the pipes are placed inside a rectangular basin with a dimension of (1500×500×500 mm). The soil was taken from Tikrit city in Iraq at a depth of (1.5 to 2 m) under the natural soil surface; the laboratory tests c

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10

Oyewole, O.A. "THE RELATIONSHIP OF BIOFILMS AND PHYSICOCHEMICAL PROPERTIES OF SOIL SAMPLES WITH CORROSION OF WATER PIPELINES IN MINNA, NIGER STATE, NIGERIA." Continental J. Microbiology 5, no. 2 (2011): 1–10. https://doi.org/10.5281/zenodo.823891.

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This study investigated the relationship of biofilms and physicochemical properties of soil samples with corrosion of water pipelines in Barkin-Sale, Bosso, Chanchaga, Keteren-Gwari, Maikunkele and Kwangila areas of Minna metropolis. Corroded water pipes and soil samples were analysed for microbiological and physicochemical properties and their influence on corrosion correlated between the months of February and July, 2008. The corrosion products detected in the soil samples were sulphide and phosphide. The mean concentration of sulphide ranged from 1020 to 3033ppm and that of phosphide ranged

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11

Dahal, Kumar Prasad, Nootan Prasad Bhattarai, and Jagadeesh Bhattarai. "An Approach for Grading of Soil Corrosiveness: A Case Study in Vicinity of Ring Road-Kathmandu." Key Engineering Materials 959 (October 6, 2023): 171–84. http://dx.doi.org/10.4028/p-fgjv6o.

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Corrosion of the outer surface of underlying Zn-coated or carbon steel pipes in the soil becomes complex and intricate due the insufficient information about the electrochemical interactions between discrete pairs of all corrosive soil factors. To overcome such corrosive problems of the underlying metal pipes in the soil, an ongoing study has suggested a stochastic approach for a close analysis of the corrosive grading of each soil specimen, sampled from the vicinity of Ring Road (RR) of Kathmandu, Nepal, towards the pipes with modifying the previously utilized AWWA (American Water Works Assoc

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12

Linke, Felicia, Oliver Olsson, Frank Preusser, et al. "Sources and pathways of biocides and their transformation products in urban storm water infrastructure of a 2 ha urban district." Hydrology and Earth System Sciences 25, no. 8 (2021): 4495–512. http://dx.doi.org/10.5194/hess-25-4495-2021.

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Abstract. Biocides used in film protection products leaching from facades are known to be a potential threat to the environment. This study identifies individual sources and entry pathways in a small-scale urban area. We investigate emissions of commonly used biocides (terbutryn, diuron, and octylisothiazolinone – OIT) and some of their transformation products (TPs; diuron-desmethyl, terbumeton, terbuthylazine-2-hydroxy, and terbutryn-desethyl) from a 2 ha residential area 13 years after construction has ended. Sampling utilizes existing urban water infrastructure representative for decentrali

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13

Diella, Giusy, Giuseppina Caggiano, Francesco Triggiano, et al. "An Artefactual Cluster of Mycobacterium abscessus Pneumonia among Cancer Patients Arising from Contamination." Pathogens 11, no. 1 (2022): 108. http://dx.doi.org/10.3390/pathogens11010108.

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The Mycobacteriumabscessus complex (MABC) is a group of rapidly growing, nontuberculous mycobacteria that are ubiquitous in soil, urban water pipes, swimming pools, and drinking water. Members of the MABC are considered opportunistic pathogens. The aim of this study was to investigate the origins of MABC detected in broncho-lavage (BL) samples from asymptomatic cancer patients. We turned our attention to washing and disinfection procedures for bronchoscopes; we also assessed water and disinfectant samples. Of 10 BL and 34 environmental samples tested, four BL samples (40%) and seven environmen

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14

Pillay, A. E., B. Yaghi, J. R. Williams, and S. Al-Kindy. "Mercury pollution from irrigation with treated sewage water (TSW)." Journal of Water and Health 5, no. 2 (2007): 315–22. http://dx.doi.org/10.2166/wh.2007.027.

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The lack of potable water in arid countries leads to the use of treated sewage water (TSW) for crop growth. Mercury accumulation (up to 500 ng/g) in agricultural soil originating from daily irrigation with TSW was found at two sites fed separately from a hospital sewage plant and an industrial plant. A control site irrigated with potable water ([Hg] &lt;0.01 ng/ml) had much reduced levels in soil (&lt;12 ng/g). Cold-vapour analysis of TSW revealed that Hg concentrations fluctuated widely, and were between 10-100 times higher than those of potable water. The TSW data originated from a t

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15

Ali, Zainab H., Muna K. Abbass, Muthana M. Kassim, and Mahmood M. Sadalden. "The Use of Tobacco Extract as an Environmentally Friendly Corrosion Inhibitor in the Protection of Steel Pipes in the Soil." Journal of Petroleum Research and Studies 15, no. 1 (2025): 180–96. https://doi.org/10.52716/jprs.v15i1.873.

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The research aims to solve the problem of corrosion in oil pipes buried in the soil by studying the addition of tobacco extract on the rates of corrosion of low carbon steel in a solution that simulates the soil conditions. The corrosion solution used is an aqueous solution that simulates soil conditions and pH of the solution was pH = 6.8 at 30◦C samples of low carbon steels were used, which are used in the petroleum industries. In this research, the Tafel polarization method was carried out in Tobacco extract solution using Potentiostat device was used to measure corrosion parameters: corros

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16

Dahal, Kumar Prasad, Shrawan Kumar Regmi, and Jagadeesh Bhattarai. "A Novel Approach for Proximate Analysis of Soil Corrosion Condition in Imadol-Sanagaun and Kantipur Colony Areas of Nepal." Solid State Phenomena 338 (October 28, 2022): 17–27. http://dx.doi.org/10.4028/p-u7uv9u.

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The catastrophe failures of the underground water pipelines, made by Fe-alloys have been largely reported in Nepal, mostly due to the unwanted electrochemical interactions in the interfacial regions between the aggressive soils and external pipe surfaces. To cope with such pipe corrosion, this study was put forward a novel probabilistic approach for the proximate analysis of the corrosive grade of soils to the pipes with the improvement of the previously practiced ASTM, AWWA, and NACE classifying methods. In this non-deterministic approach, four corrosive groups were firstly classified based o

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17

Ajah, Uche Christian, Kanee Sorbari, and Charles Kennedy. "Investigation of Garcinia kola Exudates as Corrosion Inhibitor for Mild Steel in Acidic Environment." Scholars International Journal of Chemistry and Material Sciences 10, no. 06 (2024): 71–80. http://dx.doi.org/10.36348/sijcms.2024.v07i06.002.

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This study investigated the performance of Garcinia kola exudates in preventing mild steel exposed to acid concentrated water and soil. The study was performed in order to find an alternative coating substance that can reduce the corrosion of mild steel pipes exposed to corrosive water and soil media. Various mild steel specimens were cut into portions and coated with the exudates at 25 - 50µm thickness. To accelerate the rate of corrosion, 0.5M hydrochloric acid (HCl) was added to tap water in a container. Also, the same concentration of HCl was equally added to soil samples. Uncoated mild st

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18

George, Des-Wosu Azubuike, Charles Kennedy, and Kanee Sorbari. "Application of Celtis Zenkeri Exudates as Corrosion Inhibition for Galvanised Steel Exposed to Acidic Media." Saudi Journal of Engineering and Technology 9, no. 06 (2024): 231–39. http://dx.doi.org/10.36348/sjet.2024.v09i06.001.

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This study investigated the performance of Celtis zenkeri exudates in preventing galvanised steel exposed to acid concentrated water and soil. The study was performed in order to find an alternative coating substance that can reduce the corrosion of galvanised steel pipes exposed to corrosive water and soil media. Various steel specimens were cut into portions and coated with the exudates at 25 - 50µm thickness. To accelerate the rate of corrosion, 0.5M hydrochloric acid (HCl) was added to tap water in a container. Also, the same concentration of HCl was equally added to soil samples. Uncoated

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19

Lange, Ivan, Pavel Kotiukov, and Yana Lebedeva. "Analyzing Physical-Mechanical and Hydrophysical Properties of Sandy Soils Exposed to Long-Term Hydrocarbon Contamination." Sustainability 15, no. 4 (2023): 3599. http://dx.doi.org/10.3390/su15043599.

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This paper aims to investigate the issue of sandy soil contamination by oil hydrocarbons. Laboratory procedures used to study conditionally pure and contaminated sands include grain-size measurements and evaluation of physical-mechanical and hydrophysical properties. The results of the analysis of sand samples using visual and microscopic studies and sieve analysis show that, unlike in conditionally pure sands, in contaminated samples, the surface of mineral particles is covered by hydrocarbon film. The presence of the latter enables micro- and macroaggregates to be formed. Studies of the phys

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20

Davydiuk, H. V., L. I. Shkarivska, I. I. Klymenko, N. I. Dovbash, M. A. Kushchuk, and V. V. Hirnyk. "The influence of anthropogenic human activity on the components of the environment in a rural settlement of the Khmelnytsk region." Agriculture and plant sciences: theory and practice, no. 4 (December 19, 2022): 31–38. http://dx.doi.org/10.54651/agri.2022.04.04.

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Aim. To analyze the state of the soil, natural waters and vegetable products to identify the negative impact of anthropogenic pressure on the residential area of the village. Samchyky Khmelnytsky district, Khmelnytsky region. Methods. The method of route monitoring was used for the research. Chemical-analytical studies were carried out by methods that correspond to the regulatory framework of Ukraine. Results. The analyzed soil samples had a very high content of mobile compounds of phosphorus from 1010 to 1685 mg/kg and potassium 332 mg/kg to 420 mg/kg. The content of lead in some soil samples

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21

Akram Thijeel, Zahraa, and Sadiq Salman Muhsun. "A LABORATORY MODEL FOR THE TWO-PHASE FLOW CONTAMINANT TRANSIENT IN MULTI-POROUS MEDIA." Journal of Engineering and Sustainable Development 27, no. 6 (2023): 742–53. http://dx.doi.org/10.31272/jeasd.27.6.6.

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The environmental behavior of rock and oil pollutants in soil has long been a focus of environmental protection research. In this research, a laboratory model was established to study the oil pollutant transfer process in two stages. Two samples from porous media of sandy soil and agricultural soil (organic) were used with oil as a pollutant. The oil is pumped through a system consisting of two pipes with a length of 4 m and a diameter of 0.07 m. Each pipe is assigned to a specific type of soil. The results showed that the organic soil needs a long time for the pollutants to travel over greate

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Karkush, Mahdi O., Mahmoud S. Abdul Kareem, and Mustafa M. Jasim. "Ultimate Lateral Load Capacity of Piles in Soils Contaminated with Industrial Wastewater." Civil Engineering Journal 4, no. 3 (2018): 509. http://dx.doi.org/10.28991/cej-0309111.

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The present study devoted to determine the ultimate lateral carrying capacity of piles foundation in contaminated clayey soils and subjected to lateral cyclical loading. Two methods have been used to calculate the lateral carrying capacity of piles foundation; the first one is two-line slopes intersection method (TLSI) and the second method is a modified model of soil degradation. The model proposed by Heerama and then developed by Smith has been modified to take into consideration the effects of heavy loads and soil contamination. The ultimate lateral carrying capacity of single pile and pile

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Cardenas, Andrés, Maria I. Dias, Catarina Diamantino, Edgar Carvalho, Dulce Russo, and Rosa Marques. "Geochemical Behavior of Lanthanides and Actinides in an Old Uranium Mine, Portugal." Geosciences 13, no. 6 (2023): 168. http://dx.doi.org/10.3390/geosciences13060168.

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New insights about the geochemical behavior of actinides and lanthanides in an old uranium mine are provided for the first time in this work. Fifteen samples (water, soil, and sediments) were collected inside and outside the Quinta do Bispo old mine (Portugal) in order to better understand the lanthanide and actinide behavior in the soil–water system. The chemical and mineralogical composition was obtained via ICP-MS, INAA, and XRD. The water sample from the open pit exhibits a higher U and REE dissolved concentration when compared to the other water samples. A positive Eu anomaly is found in

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24

Alika, J. O., B. K. Adeogun, and M. A. Ajibike. "Design, Fabrication, Evaluation and Calibration of an Improvised Soil Permeameter for Measurement of Soil Hydraulic Conductivity." Journal of Applied Sciences and Environmental Management 24, no. 5 (2020): 867–73. http://dx.doi.org/10.4314/jasem.v24i5.22.

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This study aimed at the design, fabrication, evaluation and calibration of an improvised soil permeameter for measuring saturated soil hydraulic conductivities. A metal support frame with a permissible strength of 50e-4 N/mm2 was made using steel galvanized pipes of 6 cmØ (internal diameter) and metal flat bars of 8cm long and 0.4cm thick. The water tank (thickness 0.6 cm, height 28 cm, internal diameter 19 cmØ) and permeameter cylinder (thickness 0.6 cm, height 23 cm, internal diameter 19 cmØ) were both made of Perspex glass material. An electromechanical measuring device which was programmed

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Chapman, P. J., B. Reynolds, and H. S. Wheater. "Sources and controls of calcium and magnesium in storm runoff: the role of groundwater and ion exchange reactions along water flowpaths." Hydrology and Earth System Sciences 1, no. 3 (1997): 671–85. http://dx.doi.org/10.5194/hess-1-671-1997.

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Abstract. A combined hydrological and chemical investigation was undertaken in a small moorland catchment at Plynlimon to determine the processes controlling storm runoff chemistry. Flow from natural soil pipes, overland flow from peat soils, throughflow from a mineral horizon and streamflow were gauged and sampled intensively during seven storms. Stormflow Ca and Mg concentrations in stream water consistently exceeded those observed in overland flow, pipeflow and throughflow. The response of Ca and Mg to increases in streamflow varied between the storms and could not be explained readily by t

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Wu, Lina, Jianen Gao, Wenjun Zhao, Xiuquan Xu, Yan Yin, and Lei Wu. "Quality assessment of rainwater and harvested rainwater stored in different types of cisterns." Water Supply 17, no. 3 (2016): 652–64. http://dx.doi.org/10.2166/ws.2016.144.

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Rainwater is widely collected and stored in cisterns for domestic use due to extreme water scarcity and poor water quality on the Loess Plateau, China. However, little information exists on the effects of cistern materials and construction methods on water quality. This study assessed the quality of rainwater and harvested rainwater stored in different types of cisterns, using multivariate statistical analysis techniques. The harvesting system consisted of ditches underground to direct the water stream collected by catchments through pipes to the two-stage grit chambers, the rainwater runoff u

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Fadl, Mohamed E., Doaa M. Abou ElFadl, Elhussieny A. Abou Hussien, et al. "Irrigation Water Quality Assessment in Egyptian Arid Lands, Utilizing Irrigation Water Quality Index and Geo-Spatial Techniques." Sustainability 16, no. 14 (2024): 6259. http://dx.doi.org/10.3390/su16146259.

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This study focused on assessing surface water quality in the northwest part of the Egyptian Nile Delta (El-Menoufia Governorate) and evaluated water suitability for irrigation purposes using the Irrigation Water Quality Index (IWQI), Permeability Index (PI), Wilcox, United State Salinity (USSL) diagram, and Piper trilinear diagrams categories, taking into consideration various water quality parameters. The results showed that, based on the IWQI, most of the water samples (61.8%) in the investigated area fell under the no restriction water (NR) category. Furthermore, the Wilcox diagram demonstr

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Andiese, V. W., and I. G. Tunas. "Infiltration rate in various land covers in Beka Village, Sigi Regency." IOP Conference Series: Earth and Environmental Science 1355, no. 1 (2024): 012023. http://dx.doi.org/10.1088/1755-1315/1355/1/012023.

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Abstract Changes in Land Use that result in increased direct surface runoff due to reduced places for rainwater absorption. The amount of water absorption into the soil or infiltration can be included in the flood calculations to design and plan water structures. Beka Village is in Sigi Regency, Central Sulawesi Province. This research aims to determine the magnitude of the infiltration rate that occurs in Beka Village and examine the soil’s physical properties that are related to the infiltration rate. This research was carried out on three types of land cover, namely mixed field land, forest

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Kamil, Ahmed Shakir, and Ala Nasir Aljorany. "Thixotropic Hardening of Fao Clay." Journal of Engineering 25, no. 5 (2019): 68–78. http://dx.doi.org/10.31026/j.eng.2019.05.05.

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Fao region is characterized by weak soft silty clay to clayey silt thick layer which extends to a depth of about 20 m. The construction of some structures on such soils may needs piles. During the installation of driven piles, the soil geotechnical properties are exposed to significant changes result due to shearing under large shear strains. These changes significantly decrease the shear strength of the virgin soil due to the destruction of soil structure caused by remolding. The degradation of shear strength is usually followed by strength regaining which is called “Thixotropy”. In this stud

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Jeong, GyeSoon, and John M. Brown. "DISPERSAL OF TRICHODERMA VIA IRRIGATION WATER." HortScience 27, no. 6 (1992): 631g—631. http://dx.doi.org/10.21273/hortsci.27.6.631g.

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Trichoderma has been known to control soil-borne pathogens and to enhance plant growth and development. The objective of the study was to evaluate dispersal of Trichoderma via irrigation water in container production. 3.81 × 30 cm PVC pipes were filled with Sunshine Mix #5 up to 25 cm. Ten tomato seeds, boiled and coated with T. harzianum, were placed at 0.5 cm depth in each pipe. All treatments were irrigated carefully with 100 ml of DD water from top every 2 days. Before and one hour after irrigation the potting mix was sampled from 5 depths at 5.5 cm intervals every 2 days for 8 days to det

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Torok, Anamaria Iulia, Erika Andrea Levei, Silviu Constantin, et al. "Application of Inductively Coupled Plasma Spectrometric Techniques and Multivariate Statistical Analysis in the Hydrogeochemical Profiling of Caves—Case Study Cloșani, Romania." Molecules 26, no. 22 (2021): 6788. http://dx.doi.org/10.3390/molecules26226788.

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The aim of the study was to develop the hydrogeochemical profiling of caves based on the elemental composition of water and silty soil samples and a multivariate statistical analysis. Major and trace elements, including rare earths, were determined in the water and soil samples. The general characteristics of water, anions content, inorganic and organic carbon fractions and nitrogen species (NO3− and NH4+) were also considered. The ANOVA—principal component analysis (PCA) and two-way joining analysis were applied on samples collected from Cloșani Cave, Romania. The ANOVA-PCA revealed that the

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Lazzari, Cleiton Junior Ribeiro, Matheus Junckes Müller, Monique Souza, et al. "Changes in Soil Acidity Attributes in Areas of Municipal Organic Waste Composting, Santa Catarina, Brazil." International Journal for Innovation Education and Research 8, no. 8 (2020): 794–806. http://dx.doi.org/10.31686/ijier.vol8.iss8.2589.

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Composting is an alternative for treating and recycling municipal solid waste. Composting directly on the soil changes the attributes related to soil acidity. The study aimed to evaluate the influence of municipal solid waste composting in a small scale system on the attributes related to the acidity of soils used for making compost piles. Soil samples were collected at depths of 0-5, 5-10, 10-20, 20-30 and 30-40 cm in four areas under composting (1C, 2C, 3C and 4C) and four adjacent reference areas with no history of composting (1R, 2R, 3R and 4R). The soil was submitted to evaluation of pH i

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Regmi, Shrawan K., Kumar P. Dahal, and Jagadeesh Bhattarai. "A proximate analysis of soil corrosivity to water pipelines in the Manohara Town Planning area of Kathmandu Valley using a probabilistic approach." IOP Conference Series: Materials Science and Engineering 1248, no. 1 (2022): 012041. http://dx.doi.org/10.1088/1757-899x/1248/1/012041.

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Abstract The facts of early non-performance of iron-based underground water pipes of the Kathmandu Valley (Nepal) are mostly due to the corrosive nature of the surrounding soil factors. A comparatively high percentage of the damage to the water pipelines in Nepal is anticipated, compared with the data reported in the developed countries. For the reasons, the quantitative data analysis of six kinds of the corrosive soil factors (i.e., moisture-holding capacity, pH, electrochemical resistivity, redox potential, Cl−, and SO4 2− ions) of 15 specimens, sampled from the Manohara Town Planning (MTP)

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Salgado, M., M. T. Collins, F. Salazar, et al. "Fate ofMycobacterium aviumsubsp.paratuberculosisafter Application of Contaminated Dairy Cattle Manure to Agricultural Soils." Applied and Environmental Microbiology 77, no. 6 (2011): 2122–29. http://dx.doi.org/10.1128/aem.02103-10.

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ABSTRACTDetails regarding the fate ofMycobacterium aviumsubsp.paratuberculosis(basonym,Mycobacterium paratuberculosis) after manure application on grassland are unknown. To evaluate this, intact soil columns were collected in plastic pipes (lysimeters) and placed under controlled conditions to test the effect of a loamy or sandy soil composition and the amount of rainfall on the fate ofM. paratuberculosisapplied to the soil surface with manure slurry. The experiment was organized as a randomized design with two factors and three replicates.M. paratuberculosis-contaminated manure was spread on

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Zhang, Zhong-Miao, Jun Yu, Guang-Xing Zhang, and Xin-Min Zhou. "Test study on the characteristics of mudcakes and in situ soils around bored piles." Canadian Geotechnical Journal 46, no. 3 (2009): 241–55. http://dx.doi.org/10.1139/t08-119.

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Constructing a bored pile produces a disturbed zone of soil adjacent to the pile, referred to as a “mudcake.” The physical properties of the mudcake are different from those of the surrounding soil. This paper reports research on bored piles in silt, clay, and sandy silt layers in Hangzhou, China. Laboratory tests were performed on samples of in situ soil, mudcake, and mudcake mixed with cement grout. The test results showed that mudcakes have a higher water content, higher void ratio, higher compressibility, lower friction, and lower shear strength than in situ soils. They also showed that mu

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Shameem, Nahira. "Physico-Chemical and Microbiological Analysis of Groundwater in Bathindi, Jammu, (J&K)." International Journal for Research in Applied Science and Engineering Technology 12, no. 11 (2024): 2202–16. https://doi.org/10.22214/ijraset.2024.65580.

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This Paper has been made in order to examine the “Physico-chemical and microbiological analysis of groundwater in Bathindi, Jammu, (J&K)”. Water is life’s matter and matrix, mother and medium (Saxena and Saxena, 2015). Water is a key component in determining the quality of our lives. Although water covers about 70 percent of the earth’s total surface, only 0.3% of it can be used by humans (Sabo and Christopher, 2014; Tiimub et al., 2012). Water is one of the basic needs of life and essential for survival (Das et al., 2014). Water is a vital component in socio-economic life of people (Shank

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Rajshri, Soni, and Mishra Pallavi. "Assessment of heavy metals in the vegetables grown in the Suburbs of Jodhpur city." Journal of Indian Chemical Society Vol. 94, Sep 2017 (2017): 1037–43. https://doi.org/10.5281/zenodo.5637779.

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Department of Chemistry, J. N. V. University, Jodhpur-342 001, Rajasthan, India <em>E-mail </em>: pallavianuk@gmail.com <em>Manuscript received 07 July 2017, accepted 16 August 2017</em> Jodhpur city comes in the Thar Desert area of Rajasthan where water availability is very low. Due to shortage of water, irrigation with effluents is very common here, as it provides farmers a very reliable and cheap water source. There are over 10,000 textile and other industrial units. These are discarding effluent water (without treatment) directly in to the drain which are connected to five nallahs. Water f

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Givi, Maeyan, Mahsa Jahangiri-Rad, and Hamidreza Tashauoei. "Assessment of Groundwater Quality in the Jajrood River Basin, Tehran, Iran: A Coupled Physicochemical and Hydrogeochemical Study." Journal of Advances in Environmental Health Research 9, no. 3 (2020): 237–54. http://dx.doi.org/10.32598/jaehr.9.3.1221.

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Background: The physicochemical composition of groundwater is affected by the quantity and quality of surrounding aquifers which are in turn recharging from adjacent river waters. Methods: In the present study, 20 surface and 16 groundwater samples were collected in pre- and post-monsoon season from the Jajrood River basin, Tehran, Iran. The samples were analyzed for 18 physicochemical water quality characteristics to assess the river and groundwater qualities. Hydrogeochemical analyses of groundwater samples were also performed to determine the Water Quality Index (WQI) for drinking and evalu

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Karkush, M. O. "Impacts of Soil Contamination on the Response of Piles Foundation under a Combination of Loading." Engineering, Technology & Applied Science Research 6, no. 1 (2016): 917–22. http://dx.doi.org/10.48084/etasr.616.

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The behavior of single piles driven into contaminated clayey soil samples subjected to a combination of static axial and cyclic lateral loadings have been studied in this research. A laboratory model was manufactured especially for studying such behavior. A solid circular cross sectional area pile of diameter 19 mm and made from aluminum, the pile was embedded into the soil with an eccentricity to embedded length (e/L) ratio of 0.334. The intact soil samples and industrial wastewater were obtained from the center of Iraq. The industrial wastewater is a byproduct disposed from Musayib thermal e

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Vasilescu, Roxana, Kexin Yin, Anne-Laure Fauchille, et al. "Influence of thermal cycles on the deformation of soil-pile interface in energy piles." E3S Web of Conferences 92 (2019): 13004. http://dx.doi.org/10.1051/e3sconf/20199213004.

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Energy piles are double purpose foundation elements used both for transferring loads to the soil and temperature regulation in buildings. The response of the pile-soil interface is influenced by daily and seasonal temperature variations. In order to assess the impact of thermal cycles on the mobilization of shear strength in energy piles, a series of saturated soil-concrete interface direct shear tests were performed in the laboratory for different temperature gradients with a new interface direct shear device adapted for thermomechanical loading. As natural soils are very complex due to a hig

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Morgunov, K. P. "Assessing the results of work on strengthening the soils of the foundation of lock № 5 of the Volga-Don shipping canal and proposals for stabilizing the chamber position." Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 15, no. 5 (2023): 806–19. http://dx.doi.org/10.21821/2309-5180-2023-15-5-806-819.

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The results of work to strengthen the soil foundation of the chamber of lock № 5 of the Volga-Don Shipping Canal, carried out in 2016–2017, are analyzed. The need to carry out work to strengthen the soil was caused by an increase in the intensity of sedimentation of the central sections of the lock chamber, which began in 2005. To stabilize the chamber position, the technology of two-component jet grouting is implemented. This technology assumes the formation of several longitudinal soil-cement walls in the soils of the lock chamber base, which would transfer the load from the weight of the ch

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Karkush, M. O. "Impacts of Soil Contamination on the Response of Piles Foundation under a Combination of Loading." Engineering, Technology & Applied Science Research 6, no. 1 (2016): 917–22. https://doi.org/10.5281/zenodo.45615.

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The behavior of single piles driven into contaminated clayey soil samples subjected to a combination of static axial and cyclic lateral loadings have been studied in this research. A laboratory model was manufactured especially for studying such behavior. A solid circular cross sectional area pile of diameter 19 mm and made from aluminum, the pile was embedded into the soil with an eccentricity to embedded length (e/L) ratio of 0.334. The intact soil samples and industrial wastewater were obtained from the center of Iraq. The industrial wastewater is a byproduct disposed from Musayib thermal e

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GONCHARENKO, D. F., O. V. STARKOVA, R. I. GUDILIN, and Yev H. DEGTYAR. "APPLICATION OF PNEUMATIC FORMWORK FOR REPAIR AND RESTORATION OF SEWER PIPELINES USING CLINKER BRICK AND POLYMER CONCRETE." Ukrainian Journal of Civil Engineering and Architecture, no. 1 (June 24, 2021): 45–51. http://dx.doi.org/10.30838/j.bpsacea.2312.230221.45.716.

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Raising of problem. A significant part of wastewater in Ukrainian cities is discharged using sewer collectors with a diameter of 300 to 1 400 mm, the depth of which is within 3…8 m. A significant part of them is destroyed due to corrosion processes that take place in the surface space. Today, the problem of repair and restoration of sewerage networks is becoming especially relevant in connection with the increased requirements for environmental protection. Failure in sewer lines usually results in wastewater infiltration into groundwater and soil. During the repair and restoration of sewage co

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Gylmutdynova, Rimma, Sergey Michurin, and Elena Yelyzaryeva. "Industrial waste resource potential of ore mining and processing enterprises of the Southern Urals." Bulletin of scientific research results, no. 3 (October 17, 2017): 138–48. http://dx.doi.org/10.20295/2223-9987-2017-3-138-148.

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Objective: To assess the industrial waste resource potential in the districts of ore mining and processing enterprises (GOK) of the Southern Urals. Methods: Chemical analysis of samples of water and soil was conducted. Results: The samples of slag were collected and analyzed near an old copper plant in Sibay, the samples taken from stock piles and tailing dumps of Uchalynskiy, Gaiskiy and Burybayevskiy ore mining and processing enterprises. It was established that mineral separation plants’ waste contain 0,3-0,4% of zinc, 0,2-0,3% of copper, 20-35% of sulfur, and more than 35% of iron. The ana

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Khramtsov, E. V., V. S. Repin, A. M. Biblin, K. V. Varfolomeeva, and S. A. Ivanov. "Radiation-hygienic characteristic of the protected zones of peaceful nuclear explosions in the Arkhangelsk region." Radiatsionnaya Gygiena = Radiation Hygiene 14, no. 1 (2021): 111–23. http://dx.doi.org/10.21514/1998-426x-2021-14-1-111-123.

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The article presents data on the radiation situation on the territories of the protected zones of peaceful nuclear explosions «Globus-2», «Agat» and «Rubin-1» based on the results of field studies in 2020. Peaceful nuclear explosions were conducted in the Arkhangelsk region for seismic exploration. The results of the radiation-hygienic state of protected zones and radiation safety in the territories adjacent to peaceful nuclear explosions are analyzed by the main indicators: the values of the ambient dose equivalent of gamma radiation, the identification of gamma-emitting radionuclides in situ

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Feng, Juan, Hao Ai, Hua Li, Runfeng Lu, Xing Cheng, and Qingmin Chen. "Spatial Distribution Characteristics, Source Tracing with Cadmium Isotopes, and a Risk Assessment of Heavy Metals in Soils in the Metal Mining Area of the Qinling Mountains, Central China." Sustainability 17, no. 4 (2025): 1569. https://doi.org/10.3390/su17041569.

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The Qinling Mountains in central China are rich in polymetallic mineralizations (e.g., Pb-Zn-Au deposits), and historic mining has resulted in large amounts of heavy metals being released into the environment. Thus, it is important to evaluate the ecological risk triggered by historic mining at this location. In this work, a gold mine was investigated as a case study to better understand the health risks present in the Qinling Mountains. To address this issue, a total of 84 soil samples and 23 surface water samples were collected from the gold mining district. Major and trace elements in soils

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Marine, Sasha C., Sivaranjani Pagadala, Fei Wang, et al. "The Growing Season, but Not the Farming System, Is a Food Safety Risk Determinant for Leafy Greens in the Mid-Atlantic Region of the United States." Applied and Environmental Microbiology 81, no. 7 (2015): 2395–407. http://dx.doi.org/10.1128/aem.00051-15.

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ABSTRACTSmall- and medium-size farms in the mid-Atlantic region of the United States use varied agricultural practices to produce leafy greens during spring and fall, but the impact of preharvest practices on food safety risk remains unclear. To assess farm-level risk factors, bacterial indicators,Salmonella enterica, and Shiga toxin-producingEscherichia coli(STEC) from 32 organic and conventional farms were analyzed. A total of 577 leafy greens, irrigation water, compost, field soil, and pond sediment samples were collected.Salmonellawas recovered from 2.2% of leafy greens (n= 369) and 7.7% o

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Rojano, Fernando, David H. Huber, Ifeoma R. Ugwuanyi, Andrielle Larissa Kemajou-Tchamba, and Amir Hass. "Rainstorms Inducing Shifts of River Hydrochemistry during a Winter Season in the Central Appalachian Region." Water 14, no. 17 (2022): 2687. http://dx.doi.org/10.3390/w14172687.

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Rainstorms rapidly change catchment conditions which can alter river flow and water constituents due to the transport and fate of suspended and dissolved solids and the river water chemistry. To understand river water chemistry changes, this investigation relies on field data collected during a winter season. The Kanawha River in West Virginia was monitored using grab water samples and continuous readings from two water quality stations (Q1 and Q2) separated by 23.5 km. Water samples allowed the identification of water chemistry, whereas the two stations retrieved hourly measurements of temper

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Adeel Tariq, Khawaja, Muhammad Moeen Soharwardy, and Nadeem Ahmed Tabessum. "Evaluation of Soil Engineering Characteristics in Jalalpur Region, Pakistan." July 2019 38, no. 3 (2019): 745–54. http://dx.doi.org/10.22581/muet1982.1903.17.

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This study deals with the evaluation of soil engineering characteristic along the proposed route of Jalalpur irrigation project. The proposed JIP (Jalalpur Irrigation Project) is located along the right bank of Jhelum River in Tehsil PDK (Pind Dadan Khan) and Tehsil Khushab of District Khushab. JIP is funded by ADB (Asian Development Bank). The JIP will enhance crop production in Tehsil PDKand Khushab. Farmers will be benefited through JIP as they will get regular supply of water through canal. It will also create job opportunities for local people and will lead to the prosperity of the Projec

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Lindström, Anders, Disa Eklöf, and Tobias Lilja. "Different Hatching Rates of Floodwater Mosquitoes Aedes sticticus, Aedes rossicus and Aedes cinereus from Different Flooded Environments." Insects 12, no. 4 (2021): 279. http://dx.doi.org/10.3390/insects12040279.

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In the lower Dalälven region, floodwater mosquitoes cause recurring problems. The main nuisance species is Aedes (Ochlerotatus) sticticus, but large numbers of Aedes (Aedes) rossicus and Aedes (Aedes) cinereus also hatch during flooding events. To increase understanding of which environments in the area give rise to mosquito nuisance, soil samples were taken from 20 locations from four environmental categories: grazed meadows, mowed meadows, unkept open grassland areas and forest areas. In each location 20 soil samples were taken, 10 from random locations and 10 from moisture retaining structu

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