https://geonika.agis.uniba.sk/tsenz/index.php?action=history&feed=atom&title=Point_source_pollution 2026-04-08T01:08:44Z História úprav pre túto stránku na wiki MediaWiki 1.31.1 https://geonika.agis.uniba.sk/tsenz/index.php?title=Point_source_pollution&diff=323&oldid=prev 2014-08-12T23:22:55Z

<p>Importing text file</p> <p><b>Nová stránka</b></p><div>:Slovak term: [[Slovenský termín]]<br /> # A pollution input that can be related to a single outlet (UNEP et al. 1997)<br /> <br /> ==Explanation==<br /> As point sources are localised, spatial profiles of the quality of the aquatic environment may<br /> be used to locate them. Some point sources are characterised by a relatively constant<br /> discharge of the polluting substances over time, such as domestic sewers, whereas others<br /> are occasional or fluctuating discharges, such as leaks and accidental spillages. A sewage<br /> treatment plant serving a fixed population delivers a continuous load of nutrients to a<br /> receiving water body. Therefore, an increase in river discharge causes greater dilution and<br /> a characteristic decrease in river concentration. This contrasts with atmospheric deposition<br /> and other diffuse sources where increased land run-off often causes increased pollutant<br /> concentrations in the receiving water system (UNEP et al. 1997).<br /> <br /> ==Example==<br /> <br /> ==References==<br /> * UNEP, Water Supply &amp; Sanitation Collaborative Council and WHO (1997) [http://www.who.int/water_sanitation_health/resources/watpolcontrol/en/index.html Water pollution control : a guide to the use of water quality management principles]<br /> <br /> ==Links==<br /> * [http://apps.who.int/thelexicon/ WHO — The Health and Environment Lexicon]<br /> <br /> [[Category:EN]]</div>

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