Environmental Science and Pollution Research

, Volume 25, Issue 15, pp 15253–15263 | Cite as

Improving and monitoring air quality

  • André DuPont
Research and Education Highlights


Since the authorization of the Clean Air Act Amendments of 1990, the air quality in the USA has significantly improved because of strong public support. The lessons learned over the last 25 years are being shared with the policy analysts, technical professionals, and scientist who endeavor to improve air quality in their communities. This paper will review how the USA has achieved the “high” standard of air quality that was envisioned in the early 1990s. This document will describe SO2 gas emission reduction technology and highlight operation of emission monitoring technology. This paper describes the basic process operation of an air pollution control scrubber. A technical review of measures required to operate and maintain a large-scale pollution control system will be described. Also, the author explains how quality assurance procedures in performance of continuous emission monitoring plays a significant role in reducing air pollution.


Air quality Scrubber Emission monitoring Quality Assurance 


Compliance with ethical standards


The author participated in this writing as part of outside activity. The views expressed are his/her own and do not necessarily reflect those of the U.S. EPA or the U.S. Government.


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Copyright information

© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2018

Authors and Affiliations

  1. 1.Environmental EngineerUnited States Environmental Protection AgencyWashingtonUSA

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