TemperatureThe degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
Thermal Power PlantsA thermal power station is a power plant in which the prime mover is steam driven. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator.
Thermosphereof upper atmosphere in which temperature increases with height.
ThresholdThe magnitude or intensity that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested.
Total Organic Gases (TOG)Gaseous organic compounds, including reactive organic gases and the relatively un-reactive organic gases such as methane.
Total Suspended Particulate (TSP)Particles of solid or liquid matter -- such as soot, dust, aerosols, fumes and mist, up to approximately 30 microns in size.
Toxic Air Contaminant (TAC)An air pollutant, which may cause or contribute to an increase in deaths or in serious illness, or which may pose a present or potential hazard to human health.
Toxic substancesChemical or physical agents that produce adverse responses in the biological systems with which they interact. The responses may be sudden and short span (acute toxicity) or long term constant or continuous (chronic toxicity).
Trace elementIt is a dietary mineral that is needed in very minute quantities for the proper growth, development, and physiology of the organism.
TroposphereThe lower part of the terrestrial atmosphere, extending from the surface up to a height varying from 9 km at the poles to about 17 km at the equator, in which temperature decreases fairly regularly with height.