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]
Lead is a naturally occurring element found in small amounts in the earth’s crust. While it has some beneficial uses, it can be toxic to humans and animals, causing severe health effects. Lead exposure can damage almost every system in the body, and at high levels can cause death.[Read More]
Houston’s ozone levels receive a lot of attention, but the Texas Commission on Environmental Quality (TCEQ) also monitors and assesses the risks of dozens of other air pollutants, some of which are considered toxic.[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 >