AAPCA Releases 2018 Edition of The Greatest Story Seldom Told

Annual air quality report highlights key metrics and success stories from

state and local air quality agencies



July 2, 2018

Lexington, KY


Today, the Association of Air Pollution Control Agencies (AAPCA) released the 2018 edition of The Greatest Story Seldom Told: Profiles and Success Stories in Air Pollution Control. State and local air agencies have been at the forefront of the significant progress in air quality that has been achieved over the past several decades.


First published in April 2017, AAPCA’s report catalogues air quality metrics and trends using publicly available data from the U.S. Environmental Protection Agency and other agencies. These trends range from concentrations of criteria air pollutants and visibility progress in national parks to permitting and compliance and enforcement statistics. Where applicable, this report also presents the trend lines of economic and social indicators that provide important context for air quality.


In cases where data sets allow state-to-state comparisons, the report highlights areas where the twenty states that serve on the AAPCA Board of Directors have provided leadership in improving air quality.


“The remarkable progress that has been made in air quality is a great story that underscores the work of state and local air agencies,” said AAPCA President Stuart Spencer, Associate Director for the Arkansas Division for Air Quality. “The 2018 edition of The Greatest Story Seldom Told continues to provide vital context for this improvement, and demonstrates that AAPCA members are dedicated to engaging with U.S. EPA and stakeholders to realize the best outcomes for air quality.”


AAPCA Vice President Nancy Vehr, Air Quality Administrator for the Wyoming Department of Environmental Quality added that “AAPCA members are proud to highlight the successes that have been achieved in controlling for air pollution. As this report shows, state members of the Association have provided leadership in nearly every metric while accommodating growing populations and economies.”




Some key statistics from 2018 edition of The Greatest Story Seldom Told include:



 AAPCA Background

The Association of Air Pollution Control Agencies (AAPCA) is a national, non-profit, consensus-driven organization focused on assisting state and local air quality agencies and personnel with implementation and technical issues associated with the federal Clean Air Act. AAPCA members work collaboratively on behalf of states and the communities they protect to act as a conduit for and provide feedback to federal regulators on air quality rules that have significant impacts across the entire nation. AAPCA represents more than 40 state and local air agencies, and senior officials from 20 state environmental agencies currently sit on AAPCA’s Board of Directors. AAPCA is housed in Lexington, Kentucky as an affiliated association of The Council of State Governments (CSG).


Association of Air Pollution Control Agencies | 1776 Avenue of the States | Lexington, Kentucky 40511 | @AAPCA_States


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