ENVS 1126 Chapter : LBN Chapter 19B
Document Summary
The caa was amended in 1977 and 1990. The foundation of u. s. air-pollution control efforts. Identifies widespread pollutants and establishes control methods to meet ambient standards: ambient: relating to the immediate surroundings of something. The caa sets ambient standards: levels protecting human health and the environment. Criteria pollutants: the most widespread and objectionable pollutants. National ambient air quality standards (naaqs): primary standards for criteria pollutants are the highest levels that won"t cause harm. Set long- and short-term levels for some pollutants. Neshaps and pollution control: the caa required the epa to establish national. Epa tracks and regulates 187 toxic pollutants: the national emissions inventory: the database of criteria and hazardous air pollutants. Epa uses the database to regulate pollutants: the strategy is to keep ambient criteria pollutant emissions below primary standard levels, command and control approach: regulations require industry to achieve a limit on each pollutant. Pollution control strategies: command-and-control requires specific control equipment.
