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Clean Air Act (CAA)
limits six criteria air pollutants and exposure to hazardous air pollutants (HAPs)
six criteria air pollutants
nitrogen oxide, sulfur dioxide, lead, particulate matter, carbon monoxide, ozone
When was the CAA passed, and what did it regulate
1963; federal control of interstate air pollution and stationary sources
What did the 1967 Air Quality Act do
compiled a science-based report on air pollutants and reguired states to adopt stringent policies in alignment with federal standard and submit SIPs
SIPs
state implementation plans
When was the EPA formed?
1970 by Richard Nixon
What was the original purpose of the EPA?
body reuglating air emissions regulation and fining states for violation of their SIPs
What was the principle behind fines for SIP violation?
they should be at elast the same cost as carrying out the proposed emissions reductions
What did the 1977 CAA amendments do?
extended time to meet commitments
mandated compute modeling for effects of new sources on NAAQS
compliant regions had to use BACT to prevent significant deterioration
When were NAAQS implemented, and what important financial provision did they put in place?
1970; cost of implementation cannot be considered when installing implementations
Primary NAAQS
concerned with human health
Secondary NAAQS
concerned with human welfare
What did the 1990 CAA amendments do?
protect stratospheric ozone
set NAAQS compliance timetables
establishes SO2 cap-and trade system
EPA develops maximum achievable control technology
New pollution sources had to have the lowest achievable emissions rate
tightened emission standards
What did the 1997 NAAQS strengthened?
for ozone and particulate matter
emissions standards
allowable emissions rate and technology requirements
Hazardous Air Pollutant Standards (HAPS)
technology based national emissions standards are applied
command and control
limits emissions with sanctions and inspections
market based mechanisms
limits emissions using taxes, fees, and emissions trading