UACES Facebook Arkansas Air Quality | Standards, Emission Control, Smoke Management
Website Contact

Yi Liang
Asst Professor - Air Quality
Biological and Ag Engineering

Phone: (479) 575-4862

University of Arkansas Fayetteville, AR  72701

Related Links

Biological & Ag Engineering at UARK

County Offices

Air Quality in Arkansas

Air Quality | Environment & Nature | Arkansas Extension - blue sky, happy girl and boy holding hands while running in field of tall grassAir pollution affects everyone.  Every day the average adult breathes over 3,000 gallons of air.  Children breathe even more air per pound of body weight and are thus more susceptible to air pollution.  Arkansas is one of a handful of states in the country that consistently meets all federal air quality standards for criteria pollutantsCriteria Pollutants | External Link such as sulfur dioxide, particulates, nitrogen oxides, carbon monoxide and lead.  Areas of larger population typically have higher concentrations of ambient air pollutants.  Sources that discharge emissionsCriteria Pollutants | External Link include motor vehicles, coal power generation, concentrated industries and fires, whether prescribed or wild.

Atmospheric gases consist of the major constant components (nitrogen 78%, oxygen 20.95%) and the highly variable components or trace gases (argon 0.93%, carbon dioxide 0.04%, water vapor 1%, other trace gases <0.08%).  It is the trace gases that impact our health and welfare.  In addition to trace gases, particulate matterParticulate matter | External Link is another major component that affects human health.

Even agricultural production can contribute to poor air quality.

  • windblown soil from erosion
  • nitrogen oxides (NOx) emissions from fertilizer and manure applications
  • fine particulates from diesel engines and controlled burning of biomass
  • methane emission from dairy cows and cattle
  • pesticides from aerial drift of crop duster and from field volatilization

Problems associated with odor tend to be locally highlighted nuisances, while certain gaseous compounds, such as ammonia, can have a local or regional impact.  Greenhouse gases tend to have global concerns, gaining increased attention from the general public.



Additional Resources

Agricultural Air Quality Program - National Institute of Food and Agriculture (NIFA)

Air Quality Topics for Agriculture - US EPA

Agricultural Air Quality Conservation Measures - NRCS and EPA

AIRNow - current and forecasted air quality maps from the EPA