thermal pollution is the discharge of waste heat via energy dissipation into cooling wate and subsequently into nearby waterways.
The major sources of thermal pollution are fossil- fuel and nuclear electric - power generating facilities and, to a lesser degree,
cooling operation associated with industrial manufacturing, such as steel foundries, other prinary - metal manufacturers, and chemical and petrochemical producers.
Land pollution is the degradation of the Earth's land surface through misuse of the soil by poor agricultura practices, mineral exploitation, industrial waste dumping, indiseriminate disposal of unban wastes.
Noise pollution has a relatively recent origin. It is a composite of sounds generated by human activities ranging from blasting stereo systems to the roar of supersonic transport jets. Noise may be generallu associated with industrial society, where heavy
machinery, motor vehicles, and aircaft have become everyday items.
Air pollition is the accumulation in the atmosphere of substances that, in sufficient concentrations, endanger human health of produce other measured effects on living matter and other materials. Among the major sources of pollution are power and heat
generation, the burning of solid waster, industrial processes, and, especially, transpotation. The six major types of pollutants are carbon monoxide, hydrocarbons, nitrogen oxides, particulates, sulfur dioxide, and photochemical oxidants.
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