Relevant bibliographies by topics / Trends in water chemistry

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Trends in water chemistry'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Trends in water chemistry"

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Clair, T. A., P. J. Dillon, J. Ion, M. Papineau, D. S. Jeffries, and R. J. Vet. "Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991)." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 1 (1995): 197–212. http://dx.doi.org/10.1139/f95-020.

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We analyzed for trends of acidification related variables from 1983 to 1992 in precipitation concentrations and deposition at six sites and surface water concentrations at 111 sites located from central Ontario to eastern Newfoundland. Precipitation showed significantly decreasing H+ and [Formula: see text] concentrations and deposition in central and eastern Ontario and at one of two sites in Québec (deposition only). For Ontario surface water sites, only increasing or stable [Formula: see text] trends were observed, and these had both concomitant increasing and decreasing trends for pH and (
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Vogt, Rolf, Øyvind Kaste, Jan-Erik Thrane, Areti Balkoni, François Clayer, and Ann Kristin Schartau. "Distinguishing the Effects of Climate Change and Acid Rain Recovery on Water Chemistry Trends: A Challenging Task?" ARPHA Conference Abstracts 8 (May 28, 2025): e155377. https://doi.org/10.3897/aca.8.e155377.

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This study examines whether trends in climate variables—precipitation, runoff, temperature, and actual evapotranspiration (AET)—can help explain changes in water chemistry in 78 Norwegian lakes from 1990 to 2020. AET has increased significantly in nearly all catchments, though substantial discrepancies exist between modeled and calculated values. Temperature has risen at 79% of monitoring stations, whereas precipitation and runoff exhibit significant trends in only 15% and 19% of lakes, respectively. These patterns are reflected in the limited explanatory power of climate variables for water c
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Stenke, A., and V. Grewe. "Simulation of stratospheric water vapor trends: impact on stratospheric ozone chemistry." Atmospheric Chemistry and Physics Discussions 4, no. 5 (2004): 6559–602. http://dx.doi.org/10.5194/acpd-4-6559-2004.

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Abstract. A transient model simulation from 1960 to 2000 with the coupled climate-chemistry model (CCM) shows a stratospheric water vapor trend during the last two decades of +0.7 ppmv and additionally a short-term increase during volcanic eruptions. At the same time this model simulation shows a long-term decrease in total ozone and a short-term tropical ozone decline after a volcanic eruption. In order to understand the resulting effects of the water vapor changes on stratospheric ozone chemistry, different perturbation simulations have been performed with the CCM with the water vapor pertur
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Akhil Raj, Sivan Thankamani, Madineni Venkat Ratnam, Daggumati Narayana Rao, and Boddam Venkata Krishna Murthy. "Long-term trends in stratospheric ozone, temperature, and water vapor over the Indian region." Annales Geophysicae 36, no. 1 (2018): 149–65. http://dx.doi.org/10.5194/angeo-36-149-2018.

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Abstract. We have investigated the long-term trends in and variabilities of stratospheric ozone, water vapor and temperature over the Indian monsoon region using the long-term data constructed from multi-satellite (Upper Atmosphere Research Satellite (UARS MLS and HALOE, 1993–2005), Aura Microwave Limb Sounder (MLS, 2004–2015), Sounding of the Atmosphere using Broadband Emission Radiometry (SABER, 2002–2015) on board TIMED (Thermosphere Ionosphere Mesosphere Energetics Dynamics)) observations covering the period 1993–2015. We have selected two locations, namely, Trivandrum (8.4∘ N, 76.9∘ E) an
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Osborne, C. G., P. D. Ravenscroft, and I. R. McCracken. "Predicted water chemistry trends in North Sea formation brines." Marine and Petroleum Geology 11, no. 1 (1994): 20–23. http://dx.doi.org/10.1016/0264-8172(94)90005-1.

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Stenke, A., and V. Grewe. "Simulation of stratospheric water vapor trends: impact on stratospheric ozone chemistry." Atmospheric Chemistry and Physics 5, no. 5 (2005): 1257–72. http://dx.doi.org/10.5194/acp-5-1257-2005.

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Abstract. A transient model simulation of the 40-year time period 1960 to 1999 with the coupled climate-chemistry model (CCM) ECHAM4.L39(DLR)/CHEM shows a stratospheric water vapor increase over the last two decades of 0.7 ppmv and, additionally, a short-term increase after major volcanic eruptions. Furthermore, a long-term decrease in global total ozone as well as a short-term ozone decline in the tropics after volcanic eruptions are modeled. In order to understand the resulting effects of the water vapor changes on lower stratospheric ozone chemistry, different perturbation simulations were
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Gaur, Sanjay, Bryan Lim, and Khanh Phan. "California water rate trends." Journal - American Water Works Association 105, no. 3 (2013): 63–71. http://dx.doi.org/10.5942/jawwa.2013.105.0037.

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Piers, Warren E. "Future Trends in Organometallic Chemistry: Organometallic Approaches to Water Splitting." Organometallics 30, no. 1 (2011): 13–16. http://dx.doi.org/10.1021/om100910d.

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Aleksander, Vasenko, Brook Vladimyr, Svyrydov Yurii, and Milanich Hanna. "GIS-assisted revealing of spatio-temporal dynamics in phycological indices of the Danube river delta." Eastern-European Journal of Enterprise Technologies 6, no. 10 (108) (2020): 6–13. https://doi.org/10.15587/1729-4061.2020.219556.

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With the aim to predict shifts in water quality in the Danube river delta, a geographic information system (GIS) for environmental monitoring with additional functions for analyzing time-dependent series of observation results was developed. Using the developed GIS, the main trends of shifts in phycological indices of water quality for the period starting from 2005 were revealed. The topicality of these studies is dictated by the need to determine the impact of shifts in aquatic chemistry on the biotic component of the ecosystem. According to data on the Pantle-Buck saprobity index, there was
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Oni, S. K., M. N. Futter, K. Bishop, S. J. Köhler, M. Ottosson-Löfvenius, and H. Laudon. "Long term patterns in dissolved organic carbon, major elements and trace metals in boreal headwater catchments: trends, mechanisms and heterogeneity." Biogeosciences Discussions 9, no. 12 (2012): 19121–63. http://dx.doi.org/10.5194/bgd-9-19121-2012.

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Abstract. The boreal landscape is a complex, spatio-temporally varying mosaic of forest and mire landscape elements that control surface water hydrology and chemistry. Here, we assess long-term water quality time-series from three nested headwater streams draining upland forest (C2), peat/mire (C4) and mixed (C7) (forest and mire) catchments. Temporal trends in weather and runoff (1981–2008); dissolved organic carbon concentration [DOC] (1993–2010) and other water quality parameters (1987–2011) were assessed. There was no significant annual trend in precipitation or runoff but a significant mo
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Dissertations / Theses on the topic "Trends in water chemistry"

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Wilson, Keith Neville. "Effect of composition on empirical stability trends for oil-in-water emulsions." Master's thesis, University of Cape Town, 1996. http://hdl.handle.net/11427/26230.

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Relative stabilities of paraffin oil-in-water emulsions were determined empirically as a function of increasing ionic strength, surfactant type or concentration, droplet size, pH and calcium(II) concentration. Stabilities were measured by droplet size changes, planar interface oil droplet coalescence times, creaming rates and photography. Stability trends between methods were compared. Conclusions were derived in terms of creaming and coagulation. The trends below were discussed in terms of theories of emulsion stability. 1. Increased surfactant concentrations stabilised the emulsions against
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Strong, William A. "Temporal water chemistry trends within individual springs and within a population of Florida springs." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008963.

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Korsman, Tom. "Acidification trends in Swedish lakes : an assessment of past water chemistry conditions using lake sediments." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 1993. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-140821.

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This thesis presents temporal perspectives of lake acidification in Sweden. Sediment records have been used to study timing, trends and causes of acidification, and two different techniques for assessing past lake-water acidity are presented. A new technique for pH prediction, based on near-infrared (NIR) spectroscopy of surface sediments, is developed. This study shows that there is a pH related fraction of lake sediments that can be recorded by NIR analysis. Relationships between NIR spectra of surface sediment samples and measured lake-water pH values, and between NIR spectra of sediment co
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Bymers, Leah. "The effects of changes in flow on the ecological condition of two Arizona streams analysis of trends in water chemistry and structure of biological assemblages /." Thesis, The University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_etd_hy0076_sip1_w.pdf&type=application/pdf.

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Nassar, Raymond. "Chlorine, Fluorine and Water in the Stratosphere: Chemistry, Transport and Trends based on ACE-FTS measurements." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/1266.

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The Atmospheric Chemistry Experiment (ACE) is a satellite mission for remote sensing of the Earth's atmosphere using the solar occultation technique. The primary instrument on this satellite is the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS). ACE-FTS retrievals are described with a focus on the creation of <em>a priori</em> temperature and pressure profiles. ACE-FTS measurements are then used to investigate the chemistry, transport and trends of chlorine, fluorine and water in the stratosphere, leading to an improved understanding of processes affecting b
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Ness, Lindsay Anne. "Solute deposition to an upland catchment : spatial patterns, temporal trends and links to stream water chemistry." Thesis, University of East Anglia, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429683.

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Kulkarni, Akshata. "TOWARDS THE DEVELOPMENT OF NOVEL POLYMERIC MATERIALS FOR OIL/WATER SEPARATION AND IMPROVED FUEL EFFICIENCY." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619104153825481.

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Shrivastava, Asheesh. "Environmental Chemistry of Lake Biwa, Japan: General trend in the changes of water quality judged from the long-term variation and the characteristic distribution of nutritious elements." Kyoto University, 2010. http://hdl.handle.net/2433/120451.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第15485号<br>人博第515号<br>新制||人||125(附属図書館)<br>21||人博||515(吉田南総合図書館)<br>27963<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授 堀 智孝, 教授 杉山 雅人, 教授 石川 尚人<br>学位規則第4条第1項該当
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Tilja, Marie. "Water colour trends in Lake Mälaren." Thesis, Linköping University, Department of Thematic Studies, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2199.

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<p>The aim of this thesis was to determine whether there has been a trend of increasing or decreasing water colour, absorbance, in Lake Mälaren during the last 35 years and whether it could be correlated with water discharge. The discharge was accounted for using regression analysis. The data material was analyzed for trends using a nonparametric test, the so-called seasonal Mann- Kendall test. The regression model could only account for a small (maximum of 24%) variation due to discharge. Thisindicates that discharge single-handedly can not explain the variation in absorbance. The trend analy
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Aguiar, Ana Raquel Batista. "Trends in deep-water shark fisheries in the Azores." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15485.

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Mestrado em Biologia Marinha<br>Deep-sea resources have been increasingly exploited, and due to that, several ecosystems and species have been considerably affected. Deep-water sharks populations have been of the most disturbed by practices of unselected fisheries, bycatch and discard, mainly due to their low commercial value. Those practices make deep-water sharks very vulnerable to overfishing given their life-history traits, increasing their extinction risk. With the prohibition of the direct fishery, and implementation of quotas and TACs (Total Allowable Catches) regarding the deep-sea sh
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Books on the topic "Trends in water chemistry"

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E, Peters Norman, Bricker Owen P. 1936-, and Kennedy M. M, eds. Water quality trends and geochemical mass balance. Wiley, 1997.

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Smith, Richard A. Analysis and interpretation of water-quality trends in major U.S. rivers, 1974-81. Dept. of the Interior, U.S. Geological Survey, 1987.

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A, Smith Richard. Analysis and interpretation of water-quality trends in major U.S. rivers, 1974-81. GPO, 1987.

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Fuller, L. M. (Lori M.), Fogarty Lisa R, Michigan. Department of Environmental Quality, and Geological Survey (U.S.), eds. Analysis of water-quality trends for selected streams in the Water Chemistry Monitoring Program, Michigan, 1998-2005. U.S. Dept. of the Interior, U.S. Geological Survey, 2009.

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Clow, D. W. Trends in precipation and stream-water chemistry in the northeastern United States, water years 1984-96. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Clow, D. W. Trends in precipitation and stream-water chemistry in the northeastern United States, water years 1984-96. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Clow, D. W. Trends in precipation and stream-water chemistry in the northeastern United States, water years 1984-96. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Ion, John. Analysis of precipitation and water quality trends in Ontario, Québec, Nova Scotia, and Newfoundland, 1983-1991. St. Lawrence Centre, 1994.

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Reif, Andrew G. Assessment of stream conditions and trends in biological and water-chemistry data from selected streams in Chester County, Pennsylvania, 1981-97. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

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Reif, Andrew G. Assessment of stream conditions and trends in biological and water-chemistry data from selected streams in Chester County, Pennsylvania, 1981-97. U.S. Dept. of the Interior, U.S. Geological Survey, 2002.

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Book chapters on the topic "Trends in water chemistry"

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Sullivan, Timothy J. "Long-Term Temporal Trends in Surface Water Chemistry." In Acidic Deposition and Aquatic Ecosystems. Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4613-9038-1_24.

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Mounce, Stephen R. "Data Science Trends and Opportunities for Smart Water Utilities." In The Handbook of Environmental Chemistry. Springer International Publishing, 2020. http://dx.doi.org/10.1007/698_2020_482.

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Randel, William J. "Variability and trends in stratospheric temperature and water vapor." In The Stratosphere: Dynamics, Transport, and Chemistry. American Geophysical Union, 2010. http://dx.doi.org/10.1029/2009gm000870.

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Findenegg, Gerhard H. "Thermodynamic and Molecular Aspects of Wetting in Oil — Water — Hydrophobic Substrate Systems." In Modern Trends of Colloid Science in Chemistry and Biology. Birkhäuser Basel, 1985. http://dx.doi.org/10.1007/978-3-0348-6513-5_4.

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Husar, Rudolf B., Timothy J. Sullivan, and Donald F. Charles. "Historical Trends in Atmospheric Sulfur Deposition and Methods for Assessing Long-Term Trends in Surface Water Chemistry." In Acidic Deposition and Aquatic Ecosystems. Springer New York, 1991. http://dx.doi.org/10.1007/978-1-4613-9038-1_4.

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Varghese, Suni Mary, Salvatore Parisi, Rajeev K. Singla, and A. S. Anitha Begum. "Health Benefits of Non-nutrients. Dietary Fibre and Water." In Trends in Food Chemistry, Nutrition and Technology in Indian Sub-Continent. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06304-6_3.

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Hardiagon, A., S. Murail, L. Huang, M. Barboiu, F. Sterpone, and M. Baaden. "Stability and Structure of Adaptive Self-organized Supramolecular Artificial Water Channels in Lipid Bilayers." In New Trends in Macromolecular and Supramolecular Chemistry for Biological Applications. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57456-7_3.

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Lee, P. A., and S. J. de Mora. "DMSP, DMS and DMSO Concentrations and Temporal Trends in Marine Surface Waters at Leigh, New Zealand." In Biological and Environmental Chemistry of DMSP and Related Sulfonium Compounds. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0377-0_34.

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Tucker, William B. "Periodic Trends." In Chemistry. CRC Press, 2024. http://dx.doi.org/10.1201/9781003479338-8.

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Belitz, H. D., W. Grosch, and P. Schieberle. "Water." In Food Chemistry. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-07279-0_1.

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Conference papers on the topic "Trends in water chemistry"

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Farooqi, I. H., P. A. Saini, and M. A. Quraishi. "Recent Trends In Cooling Water Inhibitors." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00332.

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Abstract Numerous breakthroughs have occurred in the formulation of non - chromate environmentally safe green inhibitors for cooling water systems. The application of green compounds to the area of corrosion and scale inhibition would result in the reduction/elimination of many of the more toxic inhibitors. Types of cooling water inhibitors are reviewed. Some indications of practical applications are provided with comments on environment acceptability. Mechanism of inhibition is discussed. Cooling water treatment programs are recommended by looking at water chemistry, system characteristics an
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Brown, V., J. Chalut, and D. Hartwick. "Application Experience with Low Phosphate Cooling Water Treatment." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04084.

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Abstract Inorganic phosphates have a long history of being effective corrosion inhibitors however, with the trend to lower phosphate levels in cooling water, a new set of operating guidelines are required to minimize the risk of scaling/deposition. This paper will explore the chemistry of this type of program and outline application criteria that should be used to govern the application, in order to balance corrosion and fouling issues. Cases studies will be used to highlight the primary conclusions.
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Claes, Walter P., Y. Tony Lin, and Peter S. Zisson. "Computerized Expert Monitoring and Process Control of Cooling Water Systems." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93401.

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Abstract Over the past 25 years, computerized process controllers have become more sophisticated in optimizing production. With increased understanding of the "process" of cooling water chemistry, it is now possible to apply the same computerized techniques to the control of open recirculating cooling water systems. This paper describes an integrated expert system for the monitoring and process control of cooling water systems based on the real-time input of on-line, as well as off-line, data and parameters. This single computer program is capable of gathering and storing water quality and sys
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Gregg, M. R., and J. Lerbscher. "Non Foaming Corrosion Inhibitor Developments Providing Mitigating Benefits against CO2 Corrosion for Application in High Volume Gas Wells." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04371.

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Abstract Fifteen months into the Ladyfern gas field production, produced water volumes began to surge at each well and the brine salt content increased significantly. The change in water chemistry prompted performance health checks conducted on the incumbent chemistry, re-evaluating inhibitor effectiveness relative other non foaming water soluble and water dispersible chemistries. The later inhibitors, formulated to be more dispersible in the salty brine were more effective for providing mitigating benefits against CO2 corrosion in the high total dissolved solids (TDS) brine. After re-testing
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Strand, Roger L. "Optimization of Redox for Bromine/Chlorine Control." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91296.

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Abstract Redox (oxidation reduction potential) instrumentation is routinely applied in analytical and process applications to detect the end point of oxidation or reduction reactions. Recent trends in the water treatment industry have led to an urgent need for equipment to closely control the feed of oxidizing biocides, particularly in potable water, waste water and cooling tower applications. Unfortunately, most attempts to use redox instruments for this purpose have proved unsuccessful, despite the theoretical applicability of the technique. The purpose of this paper is to familiarize the re
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Bosch, Cédric, and David Delafosse. "Stress Corrosion Cracking of Ni-Based and Fe-Based Alloys in Supercritical Water." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05396.

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Abstract This study investigates the stress corrosion cracking of Ni-based (alloys UNS N 06625 and UNS N 06030) and Fe-based alloys (superaustenitic UNS S 31266 and superduplex UNS S 32550 stainless steels) in supercritical water as function of the water chemistry. Special attention is given to the effect of chlorides, temperature and plastic strain. Initiation and propagation of cracks is studied under controlled static loading conditions. Slow strain rate tests are also performed to assess the influence of plastic strain on the cracking susceptibility, and to characterise the brittle fractur
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Roberge, P. R., and B. Price. "Simulating the Secondary Side Chemistry Control of a Candu Nuclear Reactor with a Knowledge Base Expert System." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92268.

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Abstract An important by-product of expert system (ES) development is the transformation of human expertise into the explicit representation of domain knowledge. The introduction of elements of artificial intelligence in the control loop of the secondary side chemistry control of a nuclear reactor requires that a flexible methodology be adopted to care for the lack of forgiveness of computerized reasoning while representing the sophisticated trend analysis performed by specialized technical persons. The expert knowledge representation process can be achieved with a variety of methods which in
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Lagad, Vishal V., Sridhar Srinivasan, and Kwei Meng Yap. "Effect of Flow on Corrosion - Experimental Findings and Empirical Correlations." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01194.

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Abstract The effect of momentum transfer caused by the flowing environment on corrosivity has been studied by the authors for different applications. The authors have worked with sponsoring companies on Joint Industry Programs focused on simulating real life chemistry and flow dynamics in a laboratory and have had success in demonstrating the use of these techniques in generating data that can be used to create reliable prediction models.1-3 Over the past ten years, a vast range of corrosion response data has been generated from such laboratory autoclave and flow loop tests simulating field co
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Alrayees, Abdulaziz, Sonja Richter, Marijan Babic, and Ramsey White. "Water Wetting Study on Crude Oil Utilizing Model Oil Blend." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05438.

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Abstract As oil fields mature, operating costs associated with internal corrosion of oil transport pipelines are increasing. Beside aging infrastructure, this trend is caused by decreasing oil production and increasing co-production of water. Even if water is heavier than oil, it can be entrained in the oil phase if the flow of oil is sufficient for the turbulent forces to overcome the density difference. Determining the minimum velocity for which this is possible (the entrainment velocity) is an important factor for establishing good corrosion management strategies. To determine this velocity
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Agarwal, D. C. "Alloy Selection Methodology and Experiences of the FGD Industry in Solving Complex Corrosion Problems: the Last 25 Years." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96447.

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Abstract Reviews of materials of construction (MOC) to adequately solve and control complex corrosion problems in flue gas desulfurization systems (FGD) of coal fired power plants have been fairly well documented.(1-5) The utilities, which were forced to abide by the revised clean air act of 1970, suddenly found themselves in the position of being "chemical plant operators", a role for which they were ill prepared. Their expertise in mechanical engineering, electrical engineering, water chemistry and coal management was of little or no use, thus leading to an onslaught of monumental corrosion
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Reports on the topic "Trends in water chemistry"

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Reid, M. S., X. Wang, N. Utting, and C. Jiang. Comparison of water chemistry of hydraulic-fracturing flowback water from two geological locations at the Duvernay Formation, Alberta, Canada. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/329276.

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We analyzed and compared the water chemistry between 17 Fox Creek region samples, each from a different well, and 23 Three Hills region samples from a single well. Overall, the two regions were similar in chemical composition but showed small differences in some lower abundance dissolved elements. Additionally, we investigated changes in water chemistry of FPW over time from a single well. The majority of water quality parameters and water chemistry remained constant over the 7-month sampling time. Major ion chemistry showed increasing concentrations of Ca and Mg, and a decreasing concentratio
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Weissinger, Rebecca. Status and trends of springs at Hovenweep National Monument, 1999–2021. Edited by Alice Wondrak Biel. National Park Service, 2023. http://dx.doi.org/10.36967/2294373.

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Water is a scarce, but vital, resource at Hovenweep National Monument (NM). The National Park Service has prioritized long-term monitoring of water resources at the monument through a variety of programs and indicators since 1999. The purpose of this report is to evaluate water-quantity and water-quality data collected at long-term monitoring sites in Hovenweep NM from 1999 to 2021 for trends over time, and to summarize site-characterization data for currently monitored locations. Data are available for three active monitoring stations—Square Tower Spring, Hackberry Pool, and Goodman Point Spr
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Kingston, A. W., C. Jiang, X. Wang, and T. E. Hobbs. Chemical compositions of flowback and produced water from the Duvernay shale and Montney tight reservoir developments in Western Canada: potential for lithium resources from wastewater. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331878.

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Increasing global demand for lithium coupled with a need to characterize domestic resources necessitates an expanded assessment for lithium production from unconventional sources. Oilfield brines are known to host elevated lithium concentrations and represent a prime candidate for lithium extraction. The purpose of this report is to expand our knowledge of brine chemistry within the Western Canadian Sedimentary Basin with a focus on the Montney and Duvernay formations. Specifically wells that are undergoing hydrocarbon production stimulated via hydraulic fracturing (HF) are sampled with the ev
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Schweiger, William, Kirk Sherrill, Michael Bozek, Dana Witwicki, Scott Esser, and Sonya Daw. Glacier National Park stream ecological integrity: 2007?2019 trend synthesis report. National Park Service, 2024. http://dx.doi.org/10.36967/2302379.

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Streams at Glacier National Park are important because they have some of the cleanest water in the world, they offer awe-inspiring views, and these ecosystems are home to a globally significant community of animals, including imperiled species. This report summarizes trends in chemistry, habitat, and biology for Stream Ecological Integrity (SEI) monitoring at six sentinel stream and river sites in Glacier. From 2007 to 2019 we sampled four stream sentinel sites, three or four times annually. Two additional sites were added at request of Glacier in 2018 to augment information for important Wild
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Dudley, Lynn M., Uri Shani, and Moshe Shenker. Modeling Plant Response to Deficit Irrigation with Saline Water: Separating the Effects of Water and Salt Stress in the Root Uptake Function. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586468.bard.

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Standard salinity management theory, derived from blending thermodynamic and semi- empirical considerations leads to an erroneous perception regarding compensative interaction among salinity stress factors. The current approach treats matric and osmotic components of soil water potential separately and then combines their effects to compute overall response. With deficit water a severe yield decrease is expected under high salinity, yet little or no reduction is predicted for excess irrigation, irrespective of salinity level. Similarly, considerations of competition between chloride and nitrat
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Raymond, Kara, Laura Palacios, Cheryl McIntyre, and Evan Gwilliam. Status of climate and water resources at Saguaro National Park: Water year 2019. Edited by Alice Wondrak Biel. National Park Service, 2021. http://dx.doi.org/10.36967/nrr-2288717.

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Climate and hydrology are major drivers of ecosystems. They dramatically shape ecosystem structure and function, particularly in arid and semi-arid ecosystems. Understanding changes in climate, groundwater, and water quality and quantity is central to assessing the condition of park biota and key cultural resources. The Sonoran Desert Network collects data on climate, groundwater, and surface water at 11 National Park Service units in south-ern Arizona and New Mexico. This report provides an integrated look at climate, groundwater, and springs conditions at Saguaro National Park (NP) during wa
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Schweiger, E., Joanna Lemly, Dana Witwicki, et al. Florissant Fossil Beds National Monument wetland ecological integrity: 2009?2019 synthesis report. National Park Service, 2023. http://dx.doi.org/10.36967/2300778.

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Wetlands at Florissant Fossil Beds National Monument (FLFO) are important because they are biodiversity hotspots and support iconic wildlife. They also provide valuable ?ecosystem services? such as attenuating floods, storing water, recharging aquifers, stabilizing and sequestering sediment, storing carbon, enhancing water quality, and cycling nutrients. This report summarizes 11 years (2009?2019) of wetland monitoring in three sentinel wetland complexes in FLFO. Monitoring included annual samples of 10 wet meadow and fen wetland sites in these complexes. We partition the data into a baseline
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Gorman, J. Survey of PWR water chemistry. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/6521344.

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Schlosser, Joseph Simon. Introduction to Water Chemistry Part Three. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1373521.

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10

Betcher, R. N., and W. M. Buhay. Pore-water chemistry of Lake Winnipeg sediments. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1996. http://dx.doi.org/10.4095/207514.

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