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  • A Texas Original Air Quality Success Story: The Texas Emissions Reduction Plan

    A Texas Original Air Quality Success Story: The Texas Emissions Reduction Plan

    In Houston, we are proud of the significant improvements in air quality that we have achieved over the past decade. We made those improvements by reducing ozone-forming emissions like oxides of nitrogen (NOx) in every sector—industry, small business, motor vehicles and heavy-duty equipment.[Read More]

    Sulfur Dioxide
    Nitrogen Dioxide

    Nitrogen Dioxide

    Nitrogen dioxide (NO2) is one of a group of reactive gasses known as "oxides of nitrogen," or "nitrogen oxides (NOx)."   Other nitrogen oxides include nitrous acid and nitric acid, but the U.S. EPA has established health-based standards for only NO2. NO2 is also significant because it contributes to the formation of ground-level ozone and fine particle pollution.[Read More]

What is On Air: Houston?

On Air: Houston is an initiative of the Greater Houston Partnership to share accurate information about the air we breathe in Houston. Read More >