The Maricopa County Air Quality Department's Planning & Analysis Division is responsible for drafting and
finalizing air pollution control rules and ordinances and for compiling emissions inventories. Rules and
ordinances are created and revised to comply with the Clean Air Act and to implement control strategies
for stationary sources in Maricopa County. Emissions inventories are a comprehensive listing, by source,
of air pollutant emissions. Emissions inventories cover point sources (large industries), area sources
(numerous small sources such as gas stations and consumer products usage), mobile sources (both on-road
and off-road) and biogenic sources (gases released by plants and soil).
For additional information, call 602-506-3301.