ABSTRACT
This chapter provides the novice industrial hygienist with an overview of the practice with respect to air pollution and to provide computational guidance as appropriate. Scientific terms that often confuse novices, primary and secondary pollutants, are not regulatory terms. Primary pollutants are generated at the source and emitted directly into the atmosphere, while secondary pollutants are the products of photochemical reactions in the atmosphere. Carbon monoxide is a colorless, odorless, non-irritating gas generated by incomplete combustion of carbon-based fuels. Ozone is a molecular variety of oxygen containing three oxygen atoms instead of two. Lightning is the primary natural source of ozone in the troposphere, although the oxidation of ammonia and soil bacteria also emit ozone. Best available control technology analysis, conducted on a case-by-case basis, considers the energy, environmental, and economic impacts of achieving the maximum degree of emissions reduction achievable for the construction proposal.
