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Nonpoint source (NPS) pollution refers to diffuse contamination (or pollution) of water or air that does not originate from a single discrete source. This type of pollution is often the cumulative effect of small amounts of contaminants gathered from a large area. It is in contrast to point source pollution which results from a single source.
An oiled gannet seabird getting the oil washed off.. Most of the impact was on the marine species. Eight U.S. national parks were threatened [4] and more than 400 species that live in the Gulf islands and marshlands are at risk, including the endangered Kemp's ridley turtle, the green turtle, the loggerhead turtle, the hawksbill turtle, and the leatherback turtle.
Oil spill. An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution. The term is usually given to marine oil spills, where oil is released into the ocean or coastal waters, but spills may also occur on land.
The pollution often comes from nonpoint sources such as agricultural runoff, wind-blown debris, and dust. These nonpoint sources are largely due to runoff that enters the ocean through rivers, but wind-blown debris and dust can also play a role, as these pollutants can settle into waterways and oceans. [27]
Point source pollution occurs when there is a single, identifiable, localized source of the pollution. An example is directly discharging sewage and industrial waste into the ocean. Pollution such as this occurs particularly in developing nations. [citation needed] Nonpoint source pollution occurs when the pollution is from ill-defined and ...
The toxicity of petroleum related products threaten human health. Many compounds found in oil are highly toxic and can cause cancer (carcinogenic) as well as other diseases. [23] Studies in Taiwan link proximity to oil refineries to premature births. [26] Crude oil and petroleum distillates cause birth defects.
Environmental impact of shipping. The environmental impact of shipping include air pollution, water pollution, acoustic, and oil pollution. [ 1 ] Ships are responsible for more than 18% of nitrogen oxides pollution, [ 2 ] and 3% of greenhouse gas emissions. [ 3 ]
The Elk River chemical spill occurred on January 9, 2014, when crude 4-Methylcyclohexanemethanol (MCHM) was released from a Freedom Industries facility into the Elk River, a tributary of the Kanawha River, in Charleston in the U.S. state of West Virginia. The chemical spill occurred upstream from the principal West Virginia American Water ...