3.12 Air Quality
3.12.2 Applicable Regulations, Plans, and Policies
The Federal Clean Air Act (42 U.S.C. 7401-7671q) requires the adoption of national ambient air
quality standards (NAAQS) to protect the public health and welfare from the effects of air pollution. The
NAAQS have been updated occasionally. Current standards are set for sulfur dioxide (SO2), carbon
monoxide (CO), nitrogen dioxide (NO2), ozone (O3), particulate matter equal to or less than 10 microns
in size (PM10), fine particulate matter equal to or less than 2.5 microns in size (PM2.5), and lead (Pb)3. The
State of California Air Resources Board (ARB) has established additional standards which are generally
more restrictive than the NAAQS. Federal and state standards are shown in Table 3.12-1.
In San Diego County, the San Diego APCD is the agency responsible for protecting the public health and
welfare through the administration of federal and state air quality laws, regulations, and policies. Included
in the APCD's tasks are the monitoring of air pollution, the preparation of the State Implementation Plan
(SIP) for the SDAB, and the promulgation of Rules and Regulations. The SIP includes strategies and
tactics to be used to attain the federal O3 standard in the County. The elements are taken from the Regional
Air Quality Strategies (RAQS), which is the APCD plan for attaining the state O3 standard, which is more
stringent than the federal standard. The Rules and Regulations include procedures and requirements to
control the emission of pollutants and to prevent adverse impacts.
The SD APCD does not have quantitative emissions limits for construction activities. With respect to the
proposed project, APCD Rule 51, Nuisance, is of interest, and includes the following:
A person shall not discharge from any source whatsoever such quantities of air
contaminants or other materialwhichcause injury, detriment, nuisance or annoyance to any
considerable number of persons or to the public or which cause or have a natural tendency
to cause injury or damage to business or property.
3
Standards for 8-hour O3 and PM 2.5 standards became effective on September 15, 1997, and policies and systems to
implement these new standards are being developed. No new controls with respect to the new standards will be required by the
USEPA until after the year 2002. However, on May 14, and June 18, 1999, the United States Court of Appeals rendered
decisions that effectively struck down these standards. On June 28, 1999 the USEPA filed a petition asking the court for a
reversal of the decision.
Page 3.12-2
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