“HRM has been monitoring air quality in Houston Area for more than 30 years”


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The Houston Regional Monitoring Corporation (HRM) is one of the largest privately sponsored ambient air monitoring networks in the United States and is supported by 50 individual companies operating in the Greater Houston Metropolitan Area.

HRM has been monitoring air quality in the Houston Area for over 30 years to better understand the extent, causes, effects, and abatement of air pollution. During these years, the participating HRM member companies have accumulated ambient air measurement data from as many as twelve monitoring stations; including measurements for all six criteria pollutants, and since 1987 measurements of approximately 150 volatile organic compounds. The HRM network is designed to provide representative air quality in a 900 square-mile area that includes the Houston Ship Channel Industrial corridor.

HRM is a recognized, proven source of scientific information. In early 1980, TNRCC (the former Texas Air Control Board and now TCEQ) and EPA approved the network siting for HRM monitoring protocols, and the selection of monitored compounds. In addition, there is voluntary auditing by the state and federal governments and HRM has passed every audit. This cooperative voluntary effort by industry, supported by government, has been used as a model for other privately funded monitoring networks in other areas and in foreign countries.

HRM does more than monitor the air we breathe. Special studies conducted by HRM helps to better understand air quality issues in the Houston area, and communicate HRM technical information and data to local and national audiences. Information from HRM is used to develop and evaluate effective control strategies for improving air quality while maintaining the economic viability of Houston’s industry.

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Last update: 10/24/2017