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...or nutrient pollution.<ref>Hilsenhoff, W. L. Use of Arthropods to Evaluate Water Quality of Streams. ''Wis. Dep. Nat. Resour.'' '''Technical Bulletin''', 10 ...t=William|date=2017-11-03|title=An Improved Biotic Index of Organic Stream Pollution|url=https://scholar.valpo.edu/tgle/vol20/iss1/7|journal=The Great Lakes Ent ...

...view |url=https://www.canada.ca/en/environment-climate-change/services/air-pollution/issues/transboundary/canada-united-states-air-quality-agreement-overview.ht Convinced that transboundary air pollution can cause significant harm to natural resources of vital environmental, cul ...

...ding environmental factors over an extensive river continuum.Environmental Pollution, 156, 980-987.</ref> ...kinghub.elsevier.com/retrieve/pii/S0269749116313215 |journal=Environmental Pollution |language=en |volume=219 |pages=89–98 |doi=10.1016/j.envpol.2016.09.048}}</ ...

...on the river for food and recreational purposes. One of the main types of pollution is an excess of [[nitrate]] ({{chem2|NO3-}}) caused by chemical wastes from ...can lead to a [[Dead zone (ecology)|dead zone]]. A dead zone is a body of water that has a depleted oxygen concentration that is low and can lead to the su ...

...eter–Phelps equation''' is used in the study of [[water pollution]] as a [[water quality modelling]] tool. The model describes how [[dissolved oxygen]] (DO) ...ef name="Streeter 1925">Streeter H. W., Phelps E. B., 1925, A Study of the pollution and natural purification of the Ohio river. III. Factors concerned in the p ...

'''Air pollutant concentrations''', as measured or as calculated by [[air pollution dispersion modeling]],<ref>{{cite book|author=M.R. Beychok|title=Fundamenta * Pollution regulations in the United States typically reference their pollutant limits ...

...ed during 24 hours by industrial facilities and services to the individual pollution load in household [[sewage]] produced by one person in the same time. This .../web.archive.org/web/20190608082209/https://ec.europa.eu/environment/water/water-urbanwaste/info/glossary_en.htm|archive-date=8 June 2019|publisher=European ...

...s from other fair division problems in that the resource to be divided—the water—flows in one direction—from upstream countries to downstream countries. To ...water, which is an [[economic good]], it is often required to share river pollution (or the cost of cleaning it), which is an [[economic bad]]. ...

...2015),<ref name="auto">Geng, X. and B. M.C. (2015). "Numerical modeling of water flow and salt transport in bare saline soil subjected to evaporation." Jour ...of source/sink terms, the equation for the conservation of the fluid mass (water + salt) is: ...

{{Short description|Tool to measure water quality}} ...to measure water quality, and specifically it deals with the capacity of a water body to self-regulate and degrade organic matter. The saprobic system deriv ...

..., one-dimensional transport and inverse geochemical calculations. [[USGS]] Water-Resources Investigations Report 99-4259, 1999</ref>) and the calculation/handling of "simple" water-related tasks in daily routine practice. The software aqion is free for pri ...

{{Pollution sidebar|Water}} ...ontheweb.org/under/waterquality/oxygen.html |work=Water Quality |publisher=Water on the Web |access-date=21 December 2012 |url-status=dead |archive-url=http ...

...ttps://doi.org/10.1007/s11356-017-0832-2|journal=Environmental Science and Pollution Research|language=en|volume=25|issue=5|pages=4544–4557|doi=10.1007/s11356-0 ...wStaticCategory.aspx?CategoryID=172&masterpage=5 About Phoslock], Phoslock Water Solutions</ref> ...

...servicing, energy storage capacity limitations, or periods when little hot water is extracted from the system.<ref name="Harrison2004" /> More generally, st ...ochromic]] devices) or an increase in system losses, by dumping of the hot water excess. ...

[[File:Research Clarifies Health Costs of Air Pollution from Agriculture (13468164385).jpg|thumb|right|Estimated increase in annual ...[lichen]] ''[[Bryoria|Bryoria fuscescens]]'' which is sensitive to ammonia pollution]] ...

{{Short description|Describes the process in which water vapor condenses and forms liquid cloud drops}} ...einfeld |first1=John H. |title=Atmospheric chemistry and physics: from air pollution to climate change |last2=Pandis |first2=Spyros N. |date=2006 |publisher=J. ...

...melting point of 278&nbsp;°C. These amalgams are very sensitive to air and water, but can be worked with under dry nitrogen. The Hg-Hg distance is around 3 ...oralkali process anew. If absolutely water-free alcohol is used instead of water, an [[alkoxide]] of sodium is produced instead of the alkali solution. ...

...ly at [[municipal]] [[waste water treatment plants]] and [[water treatment|water treatment plants]]. ...sed in various commercial and industrial applications, including chemical, water & wastewater, food & beverage, mining & metals, power, energy, and high-pur ...

...dimensional model of the socio-economic activities’ impact on the city air pollution.<ref>{{Cite journal |last1=Xiaolu |first1=Li |last2=Zheng |first2=Wenfeng | ...

...of rapid density change (or [[pycnocline]]) separates the upper and lower water, hindering vertical transport. ...ponding to the [[Photic zone|euphotic zone]], from the lower, [[Deep ocean water|deep ocean]]. When an eddy transits through, such density surface is deform ...