Ambient air monitoring
throughout the state of Arkansas speaks to the effectiveness of the ADEQ's Air
Division program -- Arkansas is only one of a handful of states in the country that
currently and consistently meets all federal air quality standards for criteria
pollutants such as sulfur dioxide, particulates, nitrogen oxides, hydrocarbons and
The Air Division also has received all delegable air programs,
including the Title V program for major sources of pollutants, from Region 6 of
the US Environmental Protection Agency. These programs include the New Source
Performance Standards (NSPS), National Emission Standards for Hazardous Air Pollutants
(NESHAPS), Prevention of Significant Deterioration (PSD) and the State Implementation
By working closely with businesses and industries, the Air Division
issues permits that help maintain and improve the air quality for all citizens in
the state. The Air Division has four branches,
Program Support, Planning
and Air Quality Analysis, Permits,
and Compliance Monitoring. Staff in
these branches are available to answer questions and help with any technical problems
The ADEQ Air Division is located at 5301 Northshore Drive, North
Little Rock. Click the "Where We Are" menu button to the left for maps
111(d) Regulation: Upcoming Carbon Pollution Standards for Existing Power Plants
Section 111, 42 U.S.C. §7411, of the Clean Air Act (CAA) requires the U. S. Environmental Protection Agency (EPA) to
develop regulations for categories of sources which cause or significantly contribute to air pollution which may endanger
public health or welfare. Such regulations apply to each new source within a category without regard to source location or
existing air quality.
Section 111(d) of the CAA requires states to develop plans for existing sources of noncriteria pollutants (i.e., a pollutant
for which there is no national ambient air quality standard, also called “NAAQS”) whenever EPA promulgates a standard for a
new source. These are called Section 111(d) plans and are subject to EPA review and approval.
Examples of source categories subject to 111(d) are existing municipal solid waste landfills, municipal waste combustors, sulfuric acid plants,
primary aluminum reduction plants, and the phosphate fertilizer manufacturing facilities.
The Arkansas Department of Environmental Quality and the Arkansas Public Service Commission are collaborating with the public
to prepare for upcoming federal air rules associated with regulating greenhouse gas emissions from existing power plants under
section 111(d) of the CAA. A proposed rule is expected from EPA in June of 2014, with a final rule tentatively scheduled for
June of 2015. States will then develop implementation plans to meet the requirements found in the final federal rule.
ADEQ recently released the results of a statewide modeling analysis for criteria pollutants. The objectives
of the study were to evaluate future areas of concern for ozone, fine particulate matter (PM2.5,) sulfur dioxide (SO2) and nitrogen dioxide
(NO2) throughout the state, examine the expected changes in these pollutants between the base and future years, and identify areas in the
state where additional air quality monitoring may be needed to ensure compliance with existing national ambient air quality standards (NAAQS.)
The modeling used base years 2005 and 2008, and future year 2015. ADEQ will use the results to assist in future planning.
Prevention of Significant Deterioration and Title V Greenhouse Gas Tailoring Rule
In response to the Environmental Protection Agency’s (EPA) “Prevention of Significant Deterioration and
Title V Greenhouse Gas Tailoring Rule” (GHG Tailoring Rule), Arkansas submitted a SIP on Aug. 2, 2012.
The SIP revision included amendments to Regulations No. 19, and No. 26 to incorporate the portions of the
GHG Tailoring Rule that are needed for ADEQ to be able to permit greenhouse gas (GHG) emitting sources.
So that there will be no period of time when businesses in Arkansas are unable to obtain the necessary permits,
the responsibility of issuing the GHG portion of PSD permits to sources located in the state remained under the purview
of EPA’s authority in accordance with the Federal Implementation Plan (FIP). Arkansas’s GHG Prevention of Significant
Deterioration (PSD) Tailoring Rule SIP revisions were approved by EPA on April 2, 2013, granting ADEQ the authority to
issue GHG permits in the state. Below is a link to a PowerPoint presentation with information about greenhouse
gases and permitting in Arkansas.
Emissions Inventory & Ambient Air Monitoring of Natural Gas Production in the Fayetteville Shale Region
ADEQ completed a two-part study that estimated emissions associated with natural gas production and performed air quality monitoring
at gas production sites in the Fayetteville Shale. The resulting inventory estimated county-level emissions from gas production for the year 2008. Ground-based
ambient air monitoring was performed from 2010 - 2011 at sites including compressor stations that transport natural gas and new wells that were undergoing drilling
or hydraulic fracturing. This preliminary study could support future assessments of the effects of natural gas production on air quality and public health.
In the winter, residential wood smoke can be a significant source of fine particle pollution in many areas across the US. The pollutant can trigger asthma and
aggravate other lung diseases. Research indicates that pregnant women, newborns, and people with certain health conditions, such as obesity or diabetes, also
may be at increased risk. For more information on how to select the right wood visit
The site also offers information on selecting wood-burning appliances and more. The videos below offer tips on how to properly dry, stack and store wood.