water pollution is the contamination of water bodies

8/10/2019 Water Pollution is the Contamination of Water Bodies

1/5

Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and

groundwater). Water pollution occurs when pollutants are directly or indirectly discharged into

water bodies without adequate treatment to remove harmful compounds.

Water pollution affects plants and organisms living in these bodies of water. In almost all cases the

effect is damaging not only to individual species and populations, but also to the natural biological

communities.

Chause

The specific contaminants leading to pollution in water include a wide spectrum of chemicals,

pathogens, and physical or sensory changes such as elevated temperature and discoloration. While

many of the chemicals and substances that are regulated may be naturally occurring (calcium,

sodium, iron, manganese, etc.) the concentration is often the key in determining what is a natural

component of water, and what is a contaminant. High concentrations of naturally occurring

substances can have negative impacts on aquatic flora and fauna.

Oxygen-depleting substances may be natural materials, such as plant matter (e.g. leaves and grass)

as well as man-made chemicals. Other natural and anthropogenic substances may cause turbidity

(cloudiness) which blocks light and disrupts plant growth, and clogs the gills of some fish species.[10]

Many of the chemical substances are toxic. Pathogens can produce waterborne diseases in either

human or animal hosts.[11] Alteration of water's physical chemistry includes acidity (change in pH),

electrical conductivity, temperature, and eutrophication. Eutrophication is an increase in the

concentration of chemical nutrients in an ecosystem to an extent that increases in the primary

productivity of the ecosystem. Depending on the degree of eutrophication, subsequent negative

environmental effects such as anoxia (oxygen depletion) and severe reductions in water quality may

occur, affecting fish and other animal populations.

Control of pollution[edit]

Domestic sewage[edit]

Main article:Sewage treatment

Deer Island Waste Water Treatment Plantserving Boston, Massachusetts and vicinity.
http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=16http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=16http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=16http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=17http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=17http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=17http://en.wikipedia.org/wiki/Sewage_treatmenthttp://en.wikipedia.org/wiki/Sewage_treatmenthttp://en.wikipedia.org/wiki/Sewage_treatmenthttp://en.wikipedia.org/wiki/Deer_Island_Waste_Water_Treatment_Planthttp://en.wikipedia.org/wiki/Deer_Island_Waste_Water_Treatment_Planthttp://en.wikipedia.org/wiki/File:Deer_Island_MA.JPGhttp://en.wikipedia.org/wiki/File:Deer_Island_MA.JPGhttp://en.wikipedia.org/wiki/File:Deer_Island_MA.JPGhttp://en.wikipedia.org/wiki/File:Deer_Island_MA.JPGhttp://en.wikipedia.org/wiki/Deer_Island_Waste_Water_Treatment_Planthttp://en.wikipedia.org/wiki/Sewage_treatmenthttp://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=17http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=16


2/5

Domestic sewage is typically 99.9 percent water with 0.1 percent pollutants. Although found in low

concentrations, these pollutants pose risk on a large scale.[23][24]

In urban areas, domestic sewage is

typically treated by centralized sewage treatment plants. Well-designed and operated systems (i.e.,

secondary treatment or better) can remove 90 percent or more of these pollutants. Some plants have

additional systems to remove nutrients and pathogens. Most municipal plants are not specifically

designed to treat toxic pollutants found in industrial wastewater.[25]

Cities with sanitary sewer overflows or combined sewer overflows employ one or

moreengineeringapproaches to reduce discharges of untreated sewage, including:

utilizing agreen infrastructureapproach to improve stormwater management capacity throughout

the system, and reduce thehydraulicoverloading of the treatment plant[26]

repair and replacement of leaking and malfunctioning equipment[15]

increasing overall hydraulic capacity of the sewage collection system (often a very expensive

option).

A household or business not served by a municipal treatment plant may have an individualseptictank,which treats the wastewater on site and discharges into the soil. Alternatively, domestic

wastewater may be sent to a nearby privately owned treatment system (e.g. in a rural community).

Industrial wastewater[edit]

Main article:Industrial wastewater treatment

Dissolved air flotationsystem for treating industrial wastewater.

Some industrial facilities generate ordinary domestic sewage that can be treated by municipal

facilities. Industries that generate wastewater with high concentrations of conventional pollutants (e.g.

oil and grease), toxic pollutants (e.g. heavy metals, volatile organic compounds) or other

nonconventional pollutants such as ammonia, need specialized treatment systems. Some of these

facilities can install a pre-treatment system to remove the toxic components, and then send the

partially treated wastewater to the municipal system. Industries generating large volumes ofwastewater typically operate their own complete on-site treatment systems.

Some industries have been successful at redesigning their manufacturing processes to reduce or

eliminate pollutants, through a process called pollution prevention. Heated water generated by power

plants or manufacturing plants may be controlled with:

cooling ponds,man-made bodies of water designed for cooling byevaporation,convection,

andradiation

cooling towers,which transfer waste heat to theatmospherethroughevaporationand/orheat

transfer

cogeneration,a process where waste heat is recycled for domestic and/or industrial heatingpurposes.

[27]
http://en.wikipedia.org/wiki/Water_pollution#cite_note-23http://en.wikipedia.org/wiki/Water_pollution#cite_note-23http://en.wikipedia.org/wiki/Water_pollution#cite_note-23http://en.wikipedia.org/wiki/Water_pollution#cite_note-25http://en.wikipedia.org/wiki/Water_pollution#cite_note-25http://en.wikipedia.org/wiki/Water_pollution#cite_note-25http://en.wikipedia.org/wiki/Environmental_engineeringhttp://en.wikipedia.org/wiki/Environmental_engineeringhttp://en.wikipedia.org/wiki/Environmental_engineeringhttp://en.wikipedia.org/wiki/Green_infrastructurehttp://en.wikipedia.org/wiki/Green_infrastructurehttp://en.wikipedia.org/wiki/Green_infrastructurehttp://en.wikipedia.org/wiki/Hydraulichttp://en.wikipedia.org/wiki/Hydraulichttp://en.wikipedia.org/wiki/Hydraulichttp://en.wikipedia.org/wiki/Water_pollution#cite_note-26http://en.wikipedia.org/wiki/Water_pollution#cite_note-26http://en.wikipedia.org/wiki/Water_pollution#cite_note-26http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPARTC-15http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPARTC-15http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPARTC-15http://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=18http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=18http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=18http://en.wikipedia.org/wiki/Industrial_wastewater_treatmenthttp://en.wikipedia.org/wiki/Industrial_wastewater_treatmenthttp://en.wikipedia.org/wiki/Industrial_wastewater_treatmenthttp://en.wikipedia.org/wiki/Dissolved_air_flotationhttp://en.wikipedia.org/wiki/Dissolved_air_flotationhttp://en.wikipedia.org/wiki/Cooling_pondhttp://en.wikipedia.org/wiki/Cooling_pondhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Convectionhttp://en.wikipedia.org/wiki/Convectionhttp://en.wikipedia.org/wiki/Convectionhttp://en.wikipedia.org/wiki/Radiationhttp://en.wikipedia.org/wiki/Radiationhttp://en.wikipedia.org/wiki/Radiationhttp://en.wikipedia.org/wiki/Cooling_towerhttp://en.wikipedia.org/wiki/Cooling_towerhttp://en.wikipedia.org/wiki/Atmospherehttp://en.wikipedia.org/wiki/Atmospherehttp://en.wikipedia.org/wiki/Atmospherehttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Cogenerationhttp://en.wikipedia.org/wiki/Cogenerationhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-27http://en.wikipedia.org/wiki/Water_pollution#cite_note-27http://en.wikipedia.org/wiki/Water_pollution#cite_note-27http://en.wikipedia.org/wiki/File:REDOX_DAF_unit_225_m3-h-1000_GPM.jpghttp://en.wikipedia.org/wiki/File:REDOX_DAF_unit_225_m3-h-1000_GPM.jpghttp://en.wikipedia.org/wiki/File:REDOX_DAF_unit_225_m3-h-1000_GPM.jpghttp://en.wikipedia.org/wiki/File:REDOX_DAF_unit_225_m3-h-1000_GPM.jpghttp://en.wikipedia.org/wiki/Water_pollution#cite_note-27http://en.wikipedia.org/wiki/Cogenerationhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Heat_transferhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Atmospherehttp://en.wikipedia.org/wiki/Cooling_towerhttp://en.wikipedia.org/wiki/Radiationhttp://en.wikipedia.org/wiki/Convectionhttp://en.wikipedia.org/wiki/Evaporationhttp://en.wikipedia.org/wiki/Cooling_pondhttp://en.wikipedia.org/wiki/Dissolved_air_flotationhttp://en.wikipedia.org/wiki/Industrial_wastewater_treatmenthttp://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=18http://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/wiki/Septic_tankhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-EPARTC-15http://en.wikipedia.org/wiki/Water_pollution#cite_note-26http://en.wikipedia.org/wiki/Hydraulichttp://en.wikipedia.org/wiki/Green_infrastructurehttp://en.wikipedia.org/wiki/Environmental_engineeringhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-25http://en.wikipedia.org/wiki/Water_pollution#cite_note-23http://en.wikipedia.org/wiki/Water_pollution#cite_note-23


3/5

Agricultural wastewater[edit]

Main article:Agricultural wastewater treatment

Riparian bufferlining a creek inIowa

Nonpoint source controls

Sediment(loosesoil)washed off fields is the largest source of agricultural pollution in the United

States.[10]

Farmers may utilizeerosion controlsto reduce runoff flows and retain soil on their fields.

Common techniques includecontour plowing,cropmulching,crop rotation,plantingperennialcrops

and installingriparian buffers.[28][29]:pp. 4-954-96

Nutrients (nitrogenandphosphorus)are typically applied to farmland as commercialfertilizer;

animalmanure;or spraying of municipal or industrial wastewater (effluent) or sludge. Nutrients may

also enter runoff fromcrop residues,irrigationwater,wildlife,andatmospheric deposition.[29]:p. 2-9Farmers can develop and implementnutrient managementplans to reduce excess application of

nutrients[28][29]:pp. 4-374-38

and reduce the potential fornutrient pollution.

To minimize pesticide impacts, farmers may useIntegrated Pest Management(IPM) techniques

(which can includebiological pest control)to maintain control over pests, reduce reliance on chemical

pesticides, and protect water quality.[30]

Feedlot in the United States

Point source wastewater treatment

Farms with large livestock and poultry operations, such asfactory farms,are called concentrated

animal feeding operationsor feedlotsin the US and are being subject to increasing governmentregulation.

[31][32]Animalslurriesare usually treated by containment inanaerobic lagoonsbefore
http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=19http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=19http://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=19http://en.wikipedia.org/wiki/Agricultural_wastewater_treatmenthttp://en.wikipedia.org/wiki/Agricultural_wastewater_treatmenthttp://en.wikipedia.org/wiki/Agricultural_wastewater_treatmenthttp://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Sedimenthttp://en.wikipedia.org/wiki/Sedimenthttp://en.wikipedia.org/wiki/Soilhttp://en.wikipedia.org/wiki/Soilhttp://en.wikipedia.org/wiki/Soilhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-AGFact-10http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-AGFact-10http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-AGFact-10http://en.wikipedia.org/wiki/Erosion_controlhttp://en.wikipedia.org/wiki/Erosion_controlhttp://en.wikipedia.org/wiki/Erosion_controlhttp://en.wikipedia.org/wiki/Contour_plowinghttp://en.wikipedia.org/wiki/Contour_plowinghttp://en.wikipedia.org/wiki/Contour_plowinghttp://en.wikipedia.org/wiki/Mulchhttp://en.wikipedia.org/wiki/Mulchhttp://en.wikipedia.org/wiki/Mulchhttp://en.wikipedia.org/wiki/Crop_rotationhttp://en.wikipedia.org/wiki/Crop_rotationhttp://en.wikipedia.org/wiki/Crop_rotationhttp://en.wikipedia.org/wiki/Perennialhttp://en.wikipedia.org/wiki/Perennialhttp://en.wikipedia.org/wiki/Perennialhttp://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Phosphorushttp://en.wikipedia.org/wiki/Phosphorushttp://en.wikipedia.org/wiki/Phosphorushttp://en.wikipedia.org/wiki/Fertilizerhttp://en.wikipedia.org/wiki/Fertilizerhttp://en.wikipedia.org/wiki/Fertilizerhttp://en.wikipedia.org/wiki/Manurehttp://en.wikipedia.org/wiki/Manurehttp://en.wikipedia.org/wiki/Manurehttp://en.wikipedia.org/wiki/Crop_residuehttp://en.wikipedia.org/wiki/Crop_residuehttp://en.wikipedia.org/wiki/Crop_residuehttp://en.wikipedia.org/wiki/Irrigationhttp://en.wikipedia.org/wiki/Irrigationhttp://en.wikipedia.org/wiki/Wildlifehttp://en.wikipedia.org/wiki/Wildlifehttp://en.wikipedia.org/wiki/Wildlifehttp://en.wikipedia.org/wiki/Deposition_(Aerosol_physics)http://en.wikipedia.org/wiki/Deposition_(Aerosol_physics)http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-agmm-29http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-agmm-29http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-agmm-29http://en.wikipedia.org/wiki/Nutrient_managementhttp://en.wikipedia.org/wiki/Nutrient_managementhttp://en.wikipedia.org/wiki/Nutrient_managementhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Nutrient_pollutionhttp://en.wikipedia.org/wiki/Nutrient_pollutionhttp://en.wikipedia.org/wiki/Nutrient_pollutionhttp://en.wikipedia.org/wiki/Integrated_Pest_Managementhttp://en.wikipedia.org/wiki/Integrated_Pest_Managementhttp://en.wikipedia.org/wiki/Integrated_Pest_Managementhttp://en.wikipedia.org/wiki/Biological_pest_controlhttp://en.wikipedia.org/wiki/Biological_pest_controlhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-30http://en.wikipedia.org/wiki/Water_pollution#cite_note-30http://en.wikipedia.org/wiki/Water_pollution#cite_note-30http://en.wikipedia.org/wiki/Factory_farmhttp://en.wikipedia.org/wiki/Factory_farmhttp://en.wikipedia.org/wiki/Factory_farmhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-31http://en.wikipedia.org/wiki/Water_pollution#cite_note-31http://en.wikipedia.org/wiki/Water_pollution#cite_note-31http://en.wikipedia.org/wiki/Slurryhttp://en.wikipedia.org/wiki/Slurryhttp://en.wikipedia.org/wiki/Slurryhttp://en.wikipedia.org/wiki/Anaerobic_lagoonhttp://en.wikipedia.org/wiki/Anaerobic_lagoonhttp://en.wikipedia.org/wiki/Anaerobic_lagoonhttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Confined-animal-feeding-operation.jpghttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/File:Riparian_buffer_on_Bear_Creek_in_Story_County,_Iowa.JPGhttp://en.wikipedia.org/wiki/Anaerobic_lagoonhttp://en.wikipedia.org/wiki/Slurryhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-31http://en.wikipedia.org/wiki/Water_pollution#cite_note-31http://en.wikipedia.org/wiki/Factory_farmhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-30http://en.wikipedia.org/wiki/Biological_pest_controlhttp://en.wikipedia.org/wiki/Integrated_Pest_Managementhttp://en.wikipedia.org/wiki/Nutrient_pollutionhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Nutrient_managementhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-agmm-29http://en.wikipedia.org/wiki/Deposition_(Aerosol_physics)http://en.wikipedia.org/wiki/Wildlifehttp://en.wikipedia.org/wiki/Irrigationhttp://en.wikipedia.org/wiki/Crop_residuehttp://en.wikipedia.org/wiki/Manurehttp://en.wikipedia.org/wiki/Fertilizerhttp://en.wikipedia.org/wiki/Phosphorushttp://en.wikipedia.org/wiki/Nitrogenhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Water_pollution#cite_note-NRCS-NCPS-28http://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Perennialhttp://en.wikipedia.org/wiki/Crop_rotationhttp://en.wikipedia.org/wiki/Mulchhttp://en.wikipedia.org/wiki/Contour_plowinghttp://en.wikipedia.org/wiki/Erosion_controlhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-AGFact-10http://en.wikipedia.org/wiki/Soilhttp://en.wikipedia.org/wiki/Sedimenthttp://en.wikipedia.org/wiki/Iowahttp://en.wikipedia.org/wiki/Riparian_bufferhttp://en.wikipedia.org/wiki/Agricultural_wastewater_treatmenthttp://en.wikipedia.org/w/index.php?title=Water_pollution&action=edit&section=19


4/5


5/5

Pollution prevention practices includelow-impact developmenttechniques, installation ofgreen

roofsand improved chemical handling (e.g. management of motor fuels & oil, fertilizers and

pesticides).[36]

Runoff mitigation systems includeinfiltration basins,bioretentionsystems, constructed

wetlands,retention basinsand similar devices.[37][38]

Thermal pollution from runoff can be controlled by stormwater management facilities that absorb therunoff or direct it intogroundwater,such as bioretention systems and infiltration basins. Retention

basins tend to be less effective at reducing temperature, as the water may be heated by the sun

before being discharged to a receiving stream.[35]:p. 5-58
http://en.wikipedia.org/wiki/Low-impact_development_(Canada/US)http://en.wikipedia.org/wiki/Low-impact_development_(Canada/US)http://en.wikipedia.org/wiki/Low-impact_development_(Canada/US)http://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-36http://en.wikipedia.org/wiki/Water_pollution#cite_note-36http://en.wikipedia.org/wiki/Water_pollution#cite_note-36http://en.wikipedia.org/wiki/Infiltration_basinhttp://en.wikipedia.org/wiki/Infiltration_basinhttp://en.wikipedia.org/wiki/Infiltration_basinhttp://en.wikipedia.org/wiki/Bioretentionhttp://en.wikipedia.org/wiki/Bioretentionhttp://en.wikipedia.org/wiki/Bioretentionhttp://en.wikipedia.org/wiki/Retention_basinhttp://en.wikipedia.org/wiki/Retention_basinhttp://en.wikipedia.org/wiki/Retention_basinhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-37http://en.wikipedia.org/wiki/Water_pollution#cite_note-37http://en.wikipedia.org/wiki/Water_pollution#cite_note-37http://en.wikipedia.org/wiki/Groundwaterhttp://en.wikipedia.org/wiki/Groundwaterhttp://en.wikipedia.org/wiki/Groundwaterhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-PDS-35http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-PDS-35http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-PDS-35http://en.wikipedia.org/wiki/Water_pollution#cite_note-EPA-PDS-35http://en.wikipedia.org/wiki/Groundwaterhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-37http://en.wikipedia.org/wiki/Water_pollution#cite_note-37http://en.wikipedia.org/wiki/Retention_basinhttp://en.wikipedia.org/wiki/Bioretentionhttp://en.wikipedia.org/wiki/Infiltration_basinhttp://en.wikipedia.org/wiki/Water_pollution#cite_note-36http://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Green_roofhttp://en.wikipedia.org/wiki/Low-impact_development_(Canada/US)

water pollution is the contamination of water bodies

Documents