2012 Air Quality Indicators
Mecklenburg County, North Carolina
Mecklenburg County Air Quality (MCAQ) presents the list of environmental indicators for
calendar year 2012 below that give information about the air quality in Mecklenburg County as well as
programmatic activities. Environmental indicators are scientifically-based measures that tell us what is happening
in our environment. Since the environment is complex, indicators provide a practical and economical way to track
the state of the environment. By monitoring the environment using indicators, Mecklenburg County Air Quality
(MCAQ) can better share environmental information with the public and can make better environmental decisions.
Air Quality Index Days in 2012
Program Activity Levels in 2012
Good (Green Days)
279
Moderate (Yellow Days)
Unhealthy for Sensitive Groups (Orange Days)
77
9
Citizen Requests for Service
40
NESHAP Inspections ("Asbestos Removals")
379
Permits Issued
63
42
Unhealthy (Red Days)
0
Permit Applicability Determinations
Very Unhealthy (Purple Days)
0
Stationary Source Inspections Conducted
337
Days Over the National Ambient Standard in 2012
Permitted Stationary Sources in 2012
Ozone: 1 hour
0
Major (Title V)
Ozone: 8 hour
Minor
226
Carbon Monoxide
9
0
Stage I (Gasoline Stations)
331
Particulate Matter < 10 microns (PM10)
0
Air Pollution Source Violations in 2012
Particulate Matter < 2.5 microns (PM2.5)
0
Nitrogen Oxide
0
Applicability
Sulfur Dioxide
0
Emission Standards
Air Pollution* (tons/year): CY 2012
Carbon Monoxide (CO)
9
Recordkeeping
29
9
23
Mobile Source Data in 2012
201,651
Registered Vehicles
707,195
Volatile Organic Compounds (VOC)
23,642
Vehicle Miles Traveled per Day
Nitrogen Oxides (NOx)
16,505
Mass Transit Average Daily Ridership
Sulfur Dioxide (SO2)
1,554
Permitted Transportation Facilities
Particulate Matter (PM2.5)
1,454
Ambient Monitoring in 2012
33,062,395
82,407
18
*Emissions from stationary, area & mobile sources
Toxics (TAPS/HAPS)**
328
Number of Sites
6
Number of Monitors Operated
** 2011 toxic emissions from stationary sources
30
Number of Measurements/Year
Health
Effects
Air Quality
Data
Pollution
Sources
Stationary
Sources
Area
Sources
Mobile
Sources
Ambient
Monitoring
99,261
Indoor Air
Quality
Helping you breathe easy … for life
Mecklenburg County Air Quality • 700 North Tryon Street • Charlotte, NC 28202 • 704.336.5430
http://airquality.charmeck.org