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131Best Available Control Technology — (BACT) is a pollution control standard mandated by the United States Clean Air Act. [Clean Air Act, section 169(3), uscsub|42|7479|3.] The U.S. Environmental Protection Agency (EPA) determines what air pollution control technology will be used to …
132Convective available potential energy — A skew T plot showing a morning sounding with a large hydrolapse followed by an afternoon sounding showing the cooling which occurred in the mid levels resulting in an unstable atmosphere as surface parcels have now become negatively buoyant. The …
