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The Toxic Substances Control Act

The toxic control act and textile dyeing, the Toxic Substances Control Act (TSCA) granted USEPA authority to create a framework to collect data on chemicals in order to assess, mitigate, evaluate, and control risks, which may be posed by their manufacture, processing, and use.


A theory is a term used to describe a generally accepted explanation for a set of data or observations; its validity has mostly proven by the scientific method.

Thermal inversion

Thermal inversion is a term used to describe the condition in which air temperature increases, rather than decreases, with increasing altitude; the overlying layer of warmer air may then trap warm, rising, pollutant-laden gases.

Thermal pollution

Thermal pollution is a term referring to water quality reduction caused by increasing its temperature. The main reason for thermal pollution is waste heat from industrial power generation processes and urban hermetical closed surfaces such as parking space.

Thermodynamics earth system

Thermodynamics is a term used to describe the set of natural laws that govern the transfer of energy from one body to another. Thermodynamics (comes from Greek “therme”, heat and dynamics, power) control behaviour of energy as it moves in and out of the Earth system, and among its reservoirs.