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Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment.
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.
Various definitions of pollution exist, which may or may not recognize certain types, such as noise pollution or greenhouse gases.The United States Environmental Protection Administration defines pollution as "Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard.
Water pollution (or aquatic pollution) is the contamination of water bodies, with a negative impact on their uses. [1]: 6 It is usually a result of human activities.. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwa
The Formosa steel plant is suspected to be the source of the toxic chemical waste. [6] The company admitted that there was a sewage pipe connecting the plant and the ocean and it was reported that several days before the incident, 300 tonnes (300 long tons; 330 short tons) of chemicals were imported by Formosa in order to clean the pipe. [7]
A peat fire near the Raja Musa Forest Reserve in Selangor, Malaysia (2013). The fires are below the surface, where the peat is smoldering. The Southeast Asian haze is a fire-related recurrent transboundary air pollution issue.
Water pollution point sources Air pollution point sources. A point source of pollution is a single identifiable source of air, water, thermal, noise or light pollution.A point source has negligible extent, distinguishing it from other pollution source geometrics (such as nonpoint source or area source).
Soil solarization is a hydrothermal process of disinfecting the soil of pests, accomplished by solar power (referred to as solar heating of the soil in early publications) and is relatively a new soil disinfestation method, first described in extensive scientific detail by Katan in 1976. [3]