At the end of 2015, Mecklenburg County complied with all the current federal, health-based air quality standards.
Find out more about our current compliance status. In 2015, Mecklenburg County had:
Since the 1960's Mecklenburg County Air Quality (MCAQ) has operated a monitoring program to provide high quality data used to determine compliance with federal standards and inform the general public about air quality conditions. In 2015, MCAQ collected 117,686 measurements with 34 monitors at 6 monitoring stations.
Mecklenburg County exceeded the federal standard for ozone 9 days in 2015. However, the Mecklenburg County 2015 compliance value demonstrates compliance with the federal health-based standards for ozone.
Learn more about ground-level ozone.
2015 Compliance Value
View historic trend of ozone in Mecklenburg County.
Mecklenburg County continues to demonstrate compliance with the current federal, health-based standards for particulate matter (PM) and other criteria pollutants. Learn more about these pollutants and associated health impacts.
Nearly 90% of ozone-forming air pollution in Mecklenburg County comes from mobile sources likes cars, trucks, and construction equipment. There are two reliable indicators of on-road mobile source air pollution:
Non-road mobile sources, like construction equipment, can emit a significant amount of air pollution. To reduce non-road mobile source emissions, MCAQ offers their award-winning
Grants to Replace Aging Diesel Engines (GRADE) program. GRADE provides businesses and organizations funding incentives to replace or repower older diesel-powered vehicles and equipment with newer cleaner-operating equipment.
Stationary sources are generally larger sources of air pollution that are not mobile. MCAQ permits 11 major (Title V) sources, 204 minor sources, and 317 gasoline stations (Stage 1). A major source is one that emits, or has the potential to emit, pollutants over a major source threshold. A minor source is any source which emits fewer pollutants than the major source threshold.
Permitted stationary sources in Mecklenburg County include concrete plants, fabricated metal product manufacturing, chemical plants, printing operations, autobody repair shops, petroleum bulk storage and dispensing facilities. The public can access the
online Air Pollution Facility Database for information concerning permitted stationary sources.
Of the inspections completed in 2015, 94% of facilities were found to be in compliance. The three most commonly cited violations at stationary sources are:
View the complete list of
2015 Air Quality Indicators presented above.