Mission 5
Team Fudge
Nonpoint sources of pollution
• Some nonpoint sources of pollution are land
runoff, precipitation, atmospheric deposition,
drainage, seepage or hydrologic modification.
• Nonpoint sources of pollution is caused by
rainfall or snowmelt moving over and through
the ground.
More nonpoint sources of pollution
• Nonpoint source pollution can include:
• Excess fertilizers, herbicides and insecticides from
agricultural lands and residential areas
• Oil, grease and toxic chemicals from urban runoff and
energy production
• Sediment from improperly managed construction sites,
crop and forest lands, and eroding stream banks
• Salt from irrigation practices and acid drainage from
abandoned mines
• Bacteria and nutrients from livestock, pet wastes and faulty
septic systems
• Atmospheric deposition and hydromodification
Point source of pollution
• A point source of pollution is a single identifiable
source of air, water, thermal, noise or light pollution.
• Water pollution from an oil refinery wastewater
discharge outlet[1]
• Noise pollution from a jet engine
• Disruptive seismic vibration from a localized seismic
study
• Light pollution from an intrusive street light
• Thermal pollution from an industrial process outfall
• Radio emissions from an interference-producing
electrical device
Pollution stopper companies
US Environmental Protection Agency
Ocean service education
Cited Sources
• Wikipedia
• US Environmental Protection Agency