NORTHERN SONOMA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 110 - PURPOSE

The State Air Resources Board (ARB) adopted a particulate matter (PM10) ambient air quality standard (AAQS) in December, 1982. The levels for the PM10 AAQS were selected pursuant to California Code of Regulations Title 17 Section 70200 to protect the health of people who are sensitive to exposure to fine particles. The District has monitored PM10 in the District and has recorded consistent exceedances of this standard. Pursuant to Health and Safety Code Section 39608 the ARB has declared this District non-attainment for PM10. The State Legislature in 1988 adopted the California Clean Air Act that requires attainment plans be "...designed to achieve and maintain the state standards by the earliest practicable date...". This rule is part of such a plan to deal with particulate sources contributing to non- attainment and is intended to limit and/or reduce particulate emissions caused by the use of wood fired appliances.