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English Pollution

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English Pollution

  1. 1. Pollution is the introduction of contaminants into thenatural environment that cause adversechange. Pollution can take the form of chemicalsubstances or energy, such as noise, heat orlight. Pollutants, the components of pollution, can beeither foreign substances/energies or naturally occurringcontaminants. Pollution is often classed as pointsource or nonpoint source pollution. Next
  2. 2. Water pollution is the contamination of water bodies(e.g. lakes, rivers, oceans, aquifers and groundwater). Water pollutionoccurs when pollutants are discharged directly or indirectly into waterbodies without adequate treatment to remove harmful compounds.Water pollution affects plants and organisms living in these bodies ofwater. In almost all cases the effect is damaging not only toindividual species and populations, but also to the natural biologicalcommunities. Back
  3. 3. Air pollution is the introduction intothe atmosphere of chemicals, particulates, or biological materials that causediscomfort, disease, or death to humans, damage other living organisms such asfood crops, or damage the natural environment or built environment.The atmosphere is a complex dynamic natural gaseous system that is essential tosupport life on planet Earth. Stratospheric ozone depletion due to air pollutionhas long been recognized as a threat to human health as well as to theEarths ecosystems.Indoor air pollution (see Airlog) and urban air quality are listed as two of theWorld’s Worst Toxic Pollution Problems in the 2008 Blacksmith Institute WorldsWorst Polluted Places report. Back
  4. 4. Land pollution is the degradation of the Earths land surfacethrough misuse of the soil by poor agriculturalpractices, mineral exploitation, industrial wastedumping, and indiscriminate disposal of urban wastes. Itincludes visible waste and litter as well as pollution of thesoil itself. Back