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Journal articles on the topic 'Air pollution. Air purification'

Author: Grafiati

Published: 12 December 2022

Last updated: 27 January 2023

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1

Zhuo, Yu Guo, Jun Liu, and Yu Chun Zhang. "Research on Indoor Air Pollution Controll in China." Advanced Materials Research 599 (November 2012): 525–28. http://dx.doi.org/10.4028/www.scientific.net/amr.599.525.

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According to present status in China to controll indoor air pollution should go on from six aspects that are temperature, relative humidity, ventilation, selecting material, purification technology and plant purification. The higher the temperature and relative humidity is, the easier indoor air pollutants are released. Ventilation and selecting material is an efficient way to controll indoor air pollution. Plant purification is a good way to improve the living environment.

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2

Ganesh, P. K., R. Santosh, N. K. Srimannarayana, N. K. Sriramsrinivasan, and D. K. Manu. "Solar outdoor air purifier with air quality monitor." i-manager's Journal on Communication Engineering and Systems 11, no. 1 (2022): 6. http://dx.doi.org/10.26634/jcs.11.1.18879.

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Pollution is increasing very effectively in the world. It must be reduced the present pollution levels by the deadline even though the long-term solution to the pollution problem is to identify and reduce pollution sources. The use of air purifiers is the most effective method of reducing pollution. Regular interior air purifiers, however, are little, low-power gadgets that lack the necessary filtering capacity for outdoor environments. Additionally, there is a problem with outdoor machines' power supplies. Therefore, it has created a solar outdoor air purifier that is energy independent and b

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ZHDANOVA, Irina V., Anna A. KUZNETSOVA, and Nadezhda A. KALINKINA. "MODERN TRENDS OF AIR PURIFICATION USING SKYSCRAPERS." Urban construction and architecture 9, no. 3 (2019): 135–42. http://dx.doi.org/10.17673/vestnik.2019.03.17.

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The article highlights the problem of air pollution in large cities. Sources of pollution and the most common pollutants have been identified. Examples of leading countries with the dirtiest air are given. The estimated indicators for the risks of disease and mortality are considered. The main factors causing air pollution have been identified. Ways to solve this problem using modern technologies are proposed. Analyzed are modern facilities in which innovative methods of combating air pollution are applied, and their implementation in real and conceptual design. The conclusion is drawn on the

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4

Gurung, Manoj. "IoT Based Automatic Air Pollution Monitoring and Purification System." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 1378–83. http://dx.doi.org/10.22214/ijraset.2021.38039.

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Abstract: Degradation of air quality, like climate change and global warming, has become an all-encompassing existential hazard to humanity and natural life. Exposure to severely polluted air on a regular basis causes pulmonary disorders and contributes to severe allergies and asthma. According to studies, more than 10 million people die each year as a result of irregularities produced directly or indirectly by air pollution. The work of Lelieveld et al. [1] sheds light on the gravity of the problem. It is estimated that by 2050, the worldwide premature mortality from air pollution will exceed

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5

Li, Lei, Yilin Zheng, and Shaojun Ma. "Indoor Air Purification and Residents’ Self-Rated Health: Evidence from the China Health and Nutrition Survey." International Journal of Environmental Research and Public Health 19, no. 10 (2022): 6316. http://dx.doi.org/10.3390/ijerph19106316.

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Indoor air pollution is injurious to human health, even worse than outdoor air pollution. However, there is a lack of empirical evidence using large samples in developing countries regarding whether indoor air purification can improve human health by reducing indoor air pollutants. Using the data from the China Health and Nutrition Survey in 2015, this study analyzes the relationship between indoor air purification and residents’ self-rated health. We apply the generalized ordered logit model and find that indoor air purification has a significantly positive effect on residents’ self-rated hea

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Deng, Hui Jing, and Yun Zhou Li. "Health Hazard of Indoor Air Pollution and Plant Purification Technology." Advanced Materials Research 573-574 (October 2012): 370–73. http://dx.doi.org/10.4028/www.scientific.net/amr.573-574.370.

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Household air pollution mainly falls into five categories: chemical pollution, radiant pollution, physical pollution, biological pollution and air particulate pollution. They do a great damage to human health. The plant purification is drawing wide attention, because it is economical, effective and it also has its ecological function and aesthetic values. Improper methods will cause the second-time pollution, and can hinder the growth of the plants. The core for plant purification is to choose the proper plants and scientific arrangement. Plants were chosen according to the function of the roo

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Li, Hui Xing, Bei Ni Li, Geng Geng, Wei Xiao, and Wei Wang. "Detection and Analysis of Microbial Contamination in Central Air Conditioning System of a University." Advanced Materials Research 610-613 (December 2012): 661–64. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.661.

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Objective: Test the wind pipe dust and microorganism pollution status in the central air conditioning system of public buildings in the teaching area.Analysis of microbial pollution of the related factors.Methods:Sampling 6 functionally different area in the teaching building,using the microbiology analysis method on air conditioning system of blower tube surface dust pollution of microorganism detection,and the use of TiO2 photo catalyst purification mechanism on microbial contamination control.Results:on the basis of"centralized air ventilation system in public places sanitary specification"

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8

Zubaidah, Tien, Sulaiman Hamzani, and Arifin. "Pencemaran Air dan Penentuan Titik Self-Purification Sungai di Kabupaten Banjar." Al-Ard: Jurnal Teknik Lingkungan 7, no. 1 (2021): 18–24. http://dx.doi.org/10.29080/alard.v7i1.1335.

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The self-purification capacity is an important indicator for a healthy river. Organic and inorganic pollutants from various pollutant sources, both point sources, and non-point sources, in most rivers in Banjar Regency, cause a decrease in river water quality. This study aims to identify the distribution of river water quality pollution in Banjar Regency as the upstream of the Martapura River and determine the point of self-purification. A sampling of river water using the purposive sampling technique, taking into account the criteria for pollutant sources and the distance of pollution. The re

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9

Zhou, Bingliang, Tiantian Liu, Siqi Yi, et al. "Reducing the Effectiveness of Ward Particulate Matter, Bacteria and Influenza Virus by Combining Two Complementary Air Purifiers." International Journal of Environmental Research and Public Health 19, no. 16 (2022): 10446. http://dx.doi.org/10.3390/ijerph191610446.

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Air purifiers should pay much attention to hospital-associated infections, but the role of a single air purifier is limited. The goal of this study was to evaluate the effectiveness of the combined application of the nonequilibrium positive and negative oxygen ion purifier (PNOI) and the high-efficiency particulate air filter (HEPA) on a complex, polluted environment. Two of the better performing purifiers were selected before the study. The efficacy of their use alone and in combination for purification of cigarette particulate matter (PM), Staphylococcus albicans, and influenza virus were th

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10

Martynov, Dmitrii Yu, Aleksandr N. Nikanov, Aleksei N. Kizeev, et al. "Calculate modeling of the level of indoor air pollution during its cleaning with air purifiers." Russian Journal of Occupational Health and Industrial Ecology 62, no. 10 (2022): 664–69. http://dx.doi.org/10.31089/1026-9428-2022-62-10-664-669.

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The article proposes a computational method for determining the concentrations of pollutants inside a ventilated or cleaned room, taking into account the initial conditions and parameters of the flow rate, incoming or purified air, the volume of the room, the initial concentrations of the pollutant in the atmospheric air and in the room air, the parameters of the efficiency of the air cleaner. The article proposes the solution of two mass transfer equations under known initial conditions for two methods of cleaning rooms. When solving the first equation, a direct mass transfer calculation was

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11

Cao, Jun-ji, Yu Huang, and Qian Zhang. "Ambient Air Purification by Nanotechnologies: From Theory to Application." Catalysts 11, no. 11 (2021): 1276. http://dx.doi.org/10.3390/catal11111276.

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Air pollution has been a recurring problem in northern Chinese cities, and high concentrations of PM2.5 in winter have been a particular cause for concern. Secondary aerosols converted from precursor gases (i.e., nitrogen oxides and volatile organic compounds) evidently account for a large fraction of the PM2.5. Conventional control methods, such as dust removal, desulfurization, and denitrification, help reduce emissions from stationary combustion sources, but these measures have not led to decreases in haze events. Recent advances in nanomaterials and nanotechnology provide new opportunities

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12

Gayer, Anna, Dominika Mucha, Łukasz Adamkiewicz, and Artur Badyda. "Children exposure to PM2.5 in kindergarten classrooms equipped with air purifiers - a pilot study." MATEC Web of Conferences 247 (2018): 00016. http://dx.doi.org/10.1051/matecconf/201824700016.

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Children exposure to PM2.5 is associated with several negative health effects. Particulate air pollution in the ambient and indoor air could lead to exacerbation of respiratory diseases and even influence cognitive function in children. One of the methods to improve indoor air quality is to use electronic air purifiers. Such an equipment is still not commonly used in Polish kindergartens and homes. The aim of the study was to assess changes in children exposure to particulate air pollution in kindergarten classrooms due to the occurrence of air purifier. Automatic PM2.5 concentration monitors

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Jain, Jayanti, Ritu Kapoor, and Manoj Adlakha. "PURIFICATION OF AIR BY LAKSHAHARIDRAADI YOGA AND SOME MEASURES TO REVERSE THE IMPACT OF POLLUTED AIR." International Ayurvedic Medical Journal 9, no. 9 (2021): 2201–8. http://dx.doi.org/10.46607/iamj4309092021.

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Environment plays a very significant role in human civilization. Human beings have close relations with the bio- sphere in which they live. The whole environment and ecology consisting of earth, air, water, plants and animals provide the necessary and sufficient conditions for sustaining human life. In Yajurveda and Vedic sages pure wa- ter, air etc. are the roots to good health and happiness and hence they considered all these as gods. The Vedic peo- ple desired to live a life of hundred years and this wish can be fulfilled only when the environment will be unpol- luted, clean, and peaceful.

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14

Skromulis, Andris. "IMPACT OF CLUSTER IONS AND AIR POLLUTION ON HUMAN HEALTH." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 1 (June 20, 2019): 267. http://dx.doi.org/10.17770/etr2019vol1.4162.

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Maximum permissible concentration of polluting substances in the atmospheric air is defined in the laws and regulations of many countries. The concentration of cluster ions from 400 to 3000 ions per m3 is generally considered to be appropriate for human health. The author of this article analyses potential cases when air enrichment with air ions could enhance air purification and influence favourably human health. The author also describes possible adverse effects when air ionisation can increase the harmful impact on human body, especially in situations when the concentration of polluting sub

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15

Alwiyah and Diana Putri Lazirkha. "The Impact of Artificial Intelligence in Smart City Air Purifier Systems." Aptisi Transactions on Technopreneurship (ATT) 4, no. 2 (2022): 205–14. http://dx.doi.org/10.34306/att.v4i2.180.

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Dirty air or air pollution is one of the many natural problems that we face, the problem of harmful air pollution is very representative of a colony. If the air conditioner is not healthy so that it disturbs human health. Referring to the World Most Most Polluted Country Index, Indonesia is one of 10 countries where the air is unhealthy or polluted, requiring solutions to these natural problems. This paper aims to find solutions and minimize the impact of wider air pollution through air purification by utilizing the Artificial Intelligence mobility method, especially for outdoor areas. The pro

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16

Kedare, Vinit J., Smruti S. Kharat, and Sonal Tawde. "Effectiveness of Constructed Indoor Air Purifier to Enhance Indoor Air Quality." European Journal of Engineering Research and Science 5, no. 12 (2020): 61–66. http://dx.doi.org/10.24018/ejers.2020.5.12.2262.

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Air pollution is one of the most concerned issue worldwide as it affects the population at a time. Indoor air contamination can be due to different forms of allergens, smoke, mold, radon, and other pollutants all negatively impact the health of building occupants. These pollutants can have severe effects on health of individuals up to 10 times worse than the outdoor air pollution due to lack of ventilation. For purification of air an attempt has been made to construct a purifier using filters that can trap the indoor air pollutants. The prepared model is constructed considering the cost and wo

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Kedare, Vinit J., Smruti S. Kharat, and Sonal Tawde. "Effectiveness of Constructed Indoor Air Purifier to Enhance Indoor Air Quality." European Journal of Engineering and Technology Research 5, no. 12 (2020): 61–66. http://dx.doi.org/10.24018/ejeng.2020.5.12.2262.

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Air pollution is one of the most concerned issue worldwide as it affects the population at a time. Indoor air contamination can be due to different forms of allergens, smoke, mold, radon, and other pollutants all negatively impact the health of building occupants. These pollutants can have severe effects on health of individuals up to 10 times worse than the outdoor air pollution due to lack of ventilation. For purification of air an attempt has been made to construct a purifier using filters that can trap the indoor air pollutants. The prepared model is constructed considering the cost and wo

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18

MAMMADLI RASHAD SHOHRAT OGLI, MAMMADLI RASHAD SHOHRAT OGLI. "OPTIMIZATION OF REMEDIATION OF WATER AND AIR MEDIUM CONTAMINATED WITH POLYCHLOROBIPHENYL." Prirodoobustrojstvo, no. 4 (2021): 105–9. http://dx.doi.org/10.26897/1997-6011-2021-4-106-109.

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The article is devoted to measures for the purification of water and air medium from polychlorinated biphenyl wastes by the method of UV radiation and NiO2 nanoparticles, on PCBs (polychlorinated biphenyl) constituting groundwater in PCB waste disposal areas, the possibility of neutralizing PCBs in the atmosphere in industrialized areas. A method for the degradation of polychlorinated biphenyl contained in waste and industrial waters, as well as in atmospheric air, has been proposed. Air purification is carried out with ultraviolet and microwave radiation, and ultraviolet radiation and TiO2 na

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19

Suarez, Andres, Cesar Ruiz-Agudelo, Edisson Castro-Escobar, Gloria Y. Flórez-Yepes, and Luis A. Vargas-Marín. "On the Mismatches between the Monetary and Social Values of Air Purification in the Colombian Andean Region: A Case Study." Forests 12, no. 9 (2021): 1274. http://dx.doi.org/10.3390/f12091274.

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There is growing interest in air quality and air purification, due to current high pollution levels, their effects on human health, and implications for urban economies. Since the improvement of air quality carries important economic value, air-related benefits have been evaluated monetarily from two perspectives: the first relates to air quality improvements, while the second values air purification as an ecosystem function. This research opted for the second perspective, given that the study area (two Colombian municipalities) does not suffer from poor air quality conditions, but stakeholder

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Kumar, Pavan, Ujwal Shreenag Meda, Sachin K C, and Radhakrishna . "Photocatalytic Cementitious Materials to Reduce Air Pollution: Review." ECS Transactions 107, no. 1 (2022): 4863–74. http://dx.doi.org/10.1149/10701.4863ecst.

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Oxides of nitrogen (NOx) are highly reactive and major air pollutants generated from the vehicular emission and burning of fossil fuels in industries. These pollutants will create tropospheric ozone, formation of urban smog and occurrence of acid rain, etc. A potential solution for this would be heterogeneous photocatalysis. Using photocatalysts such as titanium dioxide (TiO2) inorganic and organic matter present in the air, such as NOx and VOCs can be adsorbed and oxidized by the action of ultraviolet (UV) light (sunlight). This technology is promising for cities with highly congested areas h

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Wang, Wenlu, Shigeru Kimoto, Nobuyuki Kato, Nguyen Thi Thuong, Yasuto Matsui, and Minoru Yoneda. "Assessment of air purification effect in sheltering houses equipped with ventilation systems after air pollution incidents." Building and Environment 172 (April 2020): 106701. http://dx.doi.org/10.1016/j.buildenv.2020.106701.

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22

Chen, Yin, Chengliang Han, Peng Chen, Zong Chen, L. Y. Liu, and T. Du. "An air circulation purifying system based on PLC." E3S Web of Conferences 51 (2018): 03006. http://dx.doi.org/10.1051/e3scconf/20185103006.

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Existing air purifiers are mostly indoor air circulation, and most of them cannot achieve indoor and outdoor air circulation and provide fresh air to room. At the same time, the current air purifier filter on the market after absorbing a large amount of dust and other pollutants, if not replaced in time, is likely to cause secondary pollution. In response to these problems, this paper carried out an exploratory research that can achieve indoor and outdoor air purification device. According to the clean air volume of HEPA filter, the pressure of fan and the cross-sectional area of filter are de

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Chen, Yin, Chengliang Han, Peng Chen, Zong Chen, L. Y. Liu, and T. Du. "An air circulation purifying system based on PLC." E3S Web of Conferences 51 (2018): 03006. http://dx.doi.org/10.1051/e3sconf/20185103006.

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Existing air purifiers are mostly indoor air circulation, and most of them cannot achieve indoor and outdoor air circulation and provide fresh air to room. At the same time, the current air purifier filter on the market after absorbing a large amount of dust and other pollutants, if not replaced in time, is likely to cause secondary pollution. In response to these problems, this paper carried out an exploratory research that can achieve indoor and outdoor air purification device. According to the clean air volume of HEPA filter, the pressure of fan and the cross-sectional area of filter are de

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24

Bagsiraj, M. Kaif R., Shahid R. Narwade, Khalid S. Pirjade, Taha S. Jamadar, and Avesahemad S. N. Husainy. "A Review on Air Sterilizer for Purification of Air Using UV Light and Filters." Asian Journal of Science and Applied Technology 10, no. 2 (2021): 34–36. http://dx.doi.org/10.51983/ajsat-2021.10.2.3076.

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In this review paper, we mainly focus on the working of air conditioner and the required development needed for the sake of human comfort. Day by day the requirement of air conditioner is increasing because the temperature is increasing rapidly. Along with the air conditioner the quality of the air must be improved in order to sort out health related issues.Impurity of air is increasing due uneven human activities. In order to purify the air, the air conditioner must be developed in such a way that different type of filters such as Manganese Dioxide filter, HEPA Filter, Electrostatic Filter mu

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25

Tang, Li, and Zhong Hua Tang. "Shallow Discussion on Measures for Improving Indoor Air Quality." Advanced Materials Research 250-253 (May 2011): 2691–94. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2691.

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By preliminarily study and evaluation of indoor air quality issues origin, causes, influence and purpose of the research, the paper puts forward five controlling factors including: the source control and eliminate indoor pollution, air conditioning equipment optimization design, ventilation efficiency, indoor air self-purification -- green plants elimination method, architecture design should follow the principle of design of ecological environment.

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26

Wen, Li Mei. "Design of Automatic Air Purification Device." Applied Mechanics and Materials 644-650 (September 2014): 158–61. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.158.

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In daily life because of polluted air people have a headache, insomnia, allergic diseases, respiratory diseases, etc. Air Purifier is also called "air cleaner" or "air sober machine". It refers to an equipment which can adsorb, decompose or transform all kinds of air pollutions,and volatilize an anion to improve the indoor air quality. In order to achieve the purpose of the microcomputer digital control of system, air purifier is designed with a single chip to reduce the artificial control. The single chip microcomputer is regarded as the core circuit part of the whole control system, the func

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Wibowo, Nicholas Andreas, and Alvin Hadiwono. "AIR-CHITECTURE: SEBUAH DESAIN BANGUNAN DENGAN PURIFIKASI UDARA SECARA TEKNIS DAN PUITIS DALAM KONTEKS BERHUNI." Jurnal Sains, Teknologi, Urban, Perancangan, Arsitektur (Stupa) 3, no. 1 (2021): 589. http://dx.doi.org/10.24912/stupa.v3i1.10748.

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The world has evolved rapidly since the time of the industrial revolution, this progress has also been followed by destruction of nature. Jakarta has the worst air quality compared to other cities. Most of Jakartans are continuously exposed to air pollution because of its mobile lifestyle. Air pollution has claimed lives all over the world, not excluding Jakarta, where people will be faced with deteriorating health, respiratory diseases, and unsecured survival. This makes air pollution an unavoidable threat, which will only grow worse in the future. A question of survival arises, can architect

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Sumanasekara, S. A. S. L., and C. Jayasinghe. "ALTERNATIVE TECHNIQUES TO IMPROVE INDOOR ENVIRONMENTAL QUALITY." Journal of Green Building 13, no. 4 (2018): 19–38. http://dx.doi.org/10.3992/1943-4618.13.4.19.

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Most of the time people stay in confined environments and thus are highly exposed to accumulated indoor pollutants. Indoor environmental pollution has been identified as one of the most prevalent causes for health problems, such as sick building syndrome. These health problems have been magnified with the introduction of energy efficient building concepts, coupled with limited fresh air supply, which has compromised the effective means of air purification. Further, the frequent use of chemical substances for numerous purposes contributes to indoor air pollution. Therefore, investigation of alt

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Sun, Wen, Weidong Yan, Kailiang Huang, Jian Ma, Shu Liu, and Guoqi Liu. "Analysis of the effect of air purification equipment on indoor pollutants in Northeast China in winter." E3S Web of Conferences 356 (2022): 05066. http://dx.doi.org/10.1051/e3sconf/202235605066.

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In this study, 3 residential buildings with installed high-efficiency filter fresh air system, coarse-efficiency filter fresh air system and air purifier were selected respectively to analyze the purification effect of different air purification equipment on indoor pollutants in winter. Data on ventilation and concentrations of PM2.5 and CO2 were collected through long-term online monitoring. The test results showed that under the same outdoor pollution condition, the average indoor PM2.5 concentration of residential buildings equipped with high-efficiency filter fresh air system and air purif

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Hoppa, Adrian, Daria Sikorska, Arkadiusz Przybysz, Marta Melon, and Piotr Sikorski. "The Role of Trees in Winter Air Purification on Children’s Routes to School." Forests 13, no. 1 (2022): 40. http://dx.doi.org/10.3390/f13010040.

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Air pollution is now considered to be the world’s largest environmental health threat, accounting for millions of deaths globally each year. The social group that is particularly exposed to the harmful effects of air pollution is children. Their vulnerability results from higher breathing frequency and being subject to concentration peaks just above the ground. The negative effects of ambient particulate matter also depend on the time of exposure. A daily route to school can constitute an important component of children’s physical activity, but air pollution can pose a threat to their health.

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Svistov, P. F., A. S. Talash, and E. S. Semenets. "Air Pollution and Self-Purification by Precipitation in the Russian Arctic." Russian Journal of General Chemistry 87, no. 13 (2017): 3173–82. http://dx.doi.org/10.1134/s1070363217130114.

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Bandehali, Samaneh, Taghi Miri, Helen Onyeaka, and Prashant Kumar. "Current State of Indoor Air Phytoremediation Using Potted Plants and Green Walls." Atmosphere 12, no. 4 (2021): 473. http://dx.doi.org/10.3390/atmos12040473.

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Urban civilization has a high impact on the environment and human health. The pollution level of indoor air can be 2–5 times higher than the outdoor air pollution, and sometimes it reaches up to 100 times or more in natural/mechanical ventilated buildings. Even though people spend about 90% of their time indoors, the importance of indoor air quality is less noticed. Indoor air pollution can be treated with techniques such as chemical purification, ventilation, isolation, and removing pollutions by plants (phytoremediation). Among these techniques, phytoremediation is not given proper attention

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Zhang, Yuan, Feifei Wang, and Xinhua Xu. "Experimental study on the disinfection of microbial contamination by the microwave radiation on a typical filter coated with absorbing material." E3S Web of Conferences 356 (2022): 05055. http://dx.doi.org/10.1051/e3sconf/202235605055.

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In the air-conditioning system, a high-efficiency air filter can guarantee the capture of dust and biological particles. However, the traditional filter material itself does not have the function of disinfection and self-purification. As a result, the traditional air filter might become a hotbed for the reproduction of the microorganisms. Carried by the airflow, these microorganisms can enter the indoor environment, which might cause secondary pollutions. A properly selected upstream filter can prevent the particulate pollution, while it is hard to prevent the biological pollution inside the a

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Wang, Shan-Jiang, Xiao-Yang Zhang, Dan Su, et al. "Electrospinning Ag-TiO2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification." Molecules 25, no. 15 (2020): 3369. http://dx.doi.org/10.3390/molecules25153369.

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The efficient treatment of the problem of air pollution is a practical issue related to human health. The development of multi-functional air treatment filters, which can remove various kinds of pollutants, including particulate matter (PM) and organic gases, is a tireless pursuit aiming to address the actual needs of humans. Advanced materials and nano-manufacturing technology have brought about the opportunity to change conventional air filters for practical demands, with the aim of achieving the high-efficiency utilization of photons, a strong catalytic ability, and the synergetic degradati

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Raos, Miomir, Ljiljana Zivkovic, Amelija Djordjevic, and Branislav Todorovic. "Modelling of the filter-adsorber type air cleaner by using neural network." Facta universitatis - series: Physics, Chemistry and Technology 7, no. 1 (2009): 23–31. http://dx.doi.org/10.2298/fupct0901023r.

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It is well known that most air purifying methods imply the passing of air flow, as a pollutant carrier, through a control unit which retains impurities. Properties of the air control unit and the purifying process itself therefore differ depending on the nature of present impurities, as well as on flow-thermal properties of air as the carrier of those impurities. For the assumed conditions, in terms of production of a pollution source and presence of different polluting substances in the form of dust, aerosols, gas, vapor in the exhaust gas, etc., an integrated gas purifier has been designed a

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Ren, Hangjuan, Pramod Koshy, Wen-Fan Chen, Shaohua Qi, and Charles Christopher Sorrell. "Photocatalytic materials and technologies for air purification." Journal of Hazardous Materials 325 (March 2017): 340–66. http://dx.doi.org/10.1016/j.jhazmat.2016.08.072.

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Leung, Amy, and Ezra Kwok. "Evaluation of the Nano-Confined Catalytic Oxidation Technology for Air Purification and Odor Reduction." Advanced Materials Research 550-553 (July 2012): 607–15. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.607.

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Air pollution has a significant impact of human health. As modern individuals spend most of the day in tightly insulated buildings, there is a strong need for strategies to improve the quality of indoor air. A number of air cleaning methods ranging from simple filtration to photonic technologies have been used in commercial and residential air purifiers. Recently, a novel technology called Nano-Confined Catalytic Oxidation (NCCO) has been developed. In this study, the potential of NCCO versus two other commonly-used air purifiers to reduce odor nuisances caused by ammonia, toluene and hydrogen

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Gopal, Pallav Kumar, Vaishali Chandrashekhar Shelgaonkar, and Gaurav Upadhyay. "Semiconductor Technology based Air Sterilizer (STAS) for Indoor Air in Hospital/Clinic Rooms." Journal of Physics: Conference Series 2325, no. 1 (2022): 012024. http://dx.doi.org/10.1088/1742-6596/2325/1/012024.

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Abstract Since the outbreak covid-19, the exposure of bacteria, fungi, and virus is a hazardous situation in outpatient clinics and hospital wards. Moreover, air pollution is a serious health issue that can impact the individuals differently. The major concern of these health issues is not only the polluted air of outdoor atmosphere but also contaminated air is spread inside the houses in urban as well as rural areas. In this regard, this paper proposes a Semiconductor Technology based Air Sterilizer (STAS) that integrated several layers of filtration, purification, sterilization and air fresh

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Kiryushin, E. V., O. V. Pilyaeva, I. I. Shepelev, and E. N. Eskova. "Reduction o Air Pollution from Fine Dust by Increasing Efficiency of Gas Emission Purification Sintering Furnaces." Ecology and Industry of Russia 25, no. 12 (2021): 4–9. http://dx.doi.org/10.18412/1816-0395-2021-12-4-9.

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The installation of an additional stage of the "wet" waste gas purification unit at the alumina sintering furnaces ensured the achievement of a high degree of purification of gas emissions from fine impurities up to 96 % and the standards of maximum permissible emissions of solid pollutants into the atmosphere established for an industrial enterprise. The formed slude after gas cleaning is proposed to be sent for further processing to the hydrochemistry workshop, thereby ensuring its disposal without contamination of the natural environment. The analysis of air pollution indicators confirmed a

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Gong, Shuyan, Hongpeng Wang, Shuang Zhang, Shaohong Jiang, Xinjuan Zhao, and Qidong Hou. "Evaluating the Applicability of High-Speed Air Flotation Technology for Water Supply: A Case Study in Tianjin Binhai New Area." Separations 9, no. 11 (2022): 362. http://dx.doi.org/10.3390/separations9110362.

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The development and application of advanced water purification technology is crucial to guarantee a sufficient supply of clean water. However, conventional water purification technology consumes large amounts of coagulants, with the formation of intractable sludge. Herein, the applicability of high-speed air flotation technology for the purification of actual water sources was evaluated in Tianjin Binhai New Area. During a three-year survey, the raw water exhibited periodic pollution characteristics with algae cells as the main removal targets in all seasons. The raw water had both low tempera

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Rastogi, Rohit, D. K. Chaturvedi, Mukund Rastogi, et al. "Surveillance of Air Quality and Measuring Effect of Homa Activity at Delhi, India." International Journal of Public and Private Perspectives on Healthcare, Culture, and the Environment 6, no. 1 (2022): 1–19. http://dx.doi.org/10.4018/ijppphce.305451.

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The manuscript deals with the increasing pollution and vanishing of AQI in NCR region of India due to many factors like Parali (stubble) burning, traffic and pollution caused by factories to generate electricity by thermal power combustion. The Manuscript discusses the statistical effects of Indian Homa and Yajna process and its effect on curbing the pollution and improving AQI. It has been found that Yajna helps in purification of the environment and different AQI factors are improved by its continuous exercise for long time at a particular place. The python based data analysis has been prese

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Fu, Ting Ting, Ning Zhang, Yong Hui Zhou, Hong Min Kan, and Xiao Yang Wang. "The Progress and Application of High Specific Surface Materials in Environmental Protection." Advanced Materials Research 518-523 (May 2012): 898–902. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.898.

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High specific surface materials were widely applied in water pollution control, air pollution control and recycling of organic solvents due to their excellent physical and chemical properties such as large specific surface area, redox characteristic, high adsorption and desorption speed and large adsorptive capacity. The characteristics of activated carbon fiber, nanometer titanium dioxide and their applications in environmental protection such as air purification, the treatment of drinking water and industrial wastewater and the recycling of organic solvent were investigated in present work.

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Zou, Dong, and Zhaoxiang Zhong. "Novel Membranes for Environmental Application." Membranes 12, no. 6 (2022): 623. http://dx.doi.org/10.3390/membranes12060623.

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Membrane-based separations for water purification and gas separation have been applied extensively to address the global challenges of water scarcity and the pollution of aquatic and air environments [...]

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Shahid, Muhammad, and Muhammad Yaseen. "http://habibiaislamicus.com/index.php/hirj/article/view/205." Habibia Islamicus 5, no. 2 (2021): 45–55. http://dx.doi.org/10.47720/hi.2021.0502u03.

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One of the biggest challenges that the world is currently facing is that of environmental pollution, which is causing grave and irreparable harm to the natural world and human civilization. Worldwide innumerable deaths are being caused by water, air and soil pollution. Every nation is finding its permanent solution. The permanent solution is present in Islam which is a religion of purity and likes purification. It declares purification as half of Faith. It demands purification in every aspect related to human life. This article will highlight all the fields which require purification and the m

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Xiao, Dong Xue, Shu Ping Liu, Yong Fa Diao, and Wei Li Hou. "Status and Trends of Inorganic Ceramic Materials in the Application of Pollution Treatment." Applied Mechanics and Materials 71-78 (July 2011): 1221–24. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.1221.

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The development and application of Inorganic Ceramic Materials is a hot topic nowadays, especially in pollution controlling area. In this paper, the applications of Inorganic Ceramic Materials in water pollution control technology and air pollution purification, and the problems under implementing Inorganic Ceramic Materials are pointed out; meanwhile a trend analysis of ceramic materials is proposed.

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Ortiz-Grisales, Paola, Julián Patiño-Murillo, and Eduardo Duque-Grisales. "Comparative Study of Computational Models for Reducing Air Pollution through the Generation of Negative Ions." Sustainability 13, no. 13 (2021): 7197. http://dx.doi.org/10.3390/su13137197.

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Today, air quality is one of the global concerns that governments are facing. One of the main air pollutants is the particulate matter (PM) which affects human health. This article presents the modeling of a purification system by means of negative air ions (NAIs) for air pollutant removal, using computational intelligence methods. The system uses a high-voltage booster output to ionize air molecules from stainless steel electrodes; its particle-capturing efficiency reaches up to 97%. With two devices (5 cm × 2 cm × 2.5 cm), 2 trillion negative ions are produced per second, and the particulate

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Prasetya, H., L. Agustina, A. Rinovian, and F. D. Muttaqin. "Assessment of ceramic based photocatalytic as indoor air purifier during covid-19 pandemic." IOP Conference Series: Earth and Environmental Science 986, no. 1 (2022): 012002. http://dx.doi.org/10.1088/1755-1315/986/1/012002.

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Abstract In reducing number people who exposed covid-19, Government of Indonesia (GOI) have been issued micro-scale people activities limitation policy. Based on the policy, most people activities should be carried out in indoor area, called Work from Home (WFH). Indoor activities are at risk of expose to air pollution if there is a pollution source and unhealthy air circulation. Air purifier need develop to degrade pollution and inhibit microorganism. One of the promising technologies in air purification is Photocatalytic. Photocatalytic is an eco-friendly technique that emerged as a promisin

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YUFEREV, LEONID YU. "TESTING A COMBINED ELECTRICAL INSTALLATION FOR DUST DEPARATION AND AIR DISINFECTION IN A POULTRY HOUSE." Agricultural engineering, no. 3 (2022): 45–50. http://dx.doi.org/10.26897/2687-1149-2022-3-45-50.

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The problem of air pollution in agricultural premises leads to a decrease in the weight gain of animals and poultry, an increase in morbidity, as well as a deterioration in the sanitary working conditions. The air in poultry houses contains dust particles of various origins and sizes, as well as pathogens and harmful gases. Therefore, air purification in poultry premises must be approached comprehensively. An analysis of the air purification installations used in agricultural premises showed that these installations do not have a high efficiency of dedusting and disinfection at the same time.

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Xie, Dong, Chenhua Wang, Chuck W. Yu, and Hanqing Wang. "Numerical investigation of radon dispersion and dose assessment for typical ventilation schemes with an air purifier." Indoor and Built Environment 30, no. 1 (2020): 114–28. http://dx.doi.org/10.1177/1420326x19893748.

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Radon is a radioactive pollutant that could pose hazards to the surrounding environment and people due to its radioactive decay progenies. In this study, numerical simulations of radon dispersion were conducted under natural and mechanical ventilation with an air-purifier for radon. Factors such as the air supply speed, position and air supply angles of the purifier were considered. Results showed that the increase in the air supply speed from the purifier was an effective solution to reduce indoor radon pollution. The effect was better when the purifier was in the middle of the room. The puri

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Skorokhod, Iryna. "DIAGNOSTICS OF ECOSAFETY REGIONS DEVELOPMENT IN UKRAINE." International Journal of New Economics and Social Sciences 8, no. 2 (2018): 183–87. http://dx.doi.org/10.5604/01.3001.0012.9943.

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The article reveals the essence of environmentally safety development of the region. An analysis of the ecological situation in the regions of Ukraine is carried out on the basis of indicators of air pollution, water purification and utilization of solid and hazardous wastes. A number of measures have been proposed to improve the status of at-mospheric air, water objects, outlines ways of solving the problem of waste utilization in the regions of Ukraine.

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