- By Minor Barnette
- Posted Monday, October 5, 2015
Change to Ground Level Ozone Pollution Standard
Based on the latest science, and after reviewing thousands of scientific studies, the EPA has set the new
ground level ozone standard at 70 parts per billion (ppb), a change of 5 ppb from the previous standard
of 75 ppb.
Ground level ozone is formed by chemical reactions between oxides of nitrogen (NOx) and volatile
organic compounds (VOC) in the presence of sunlight. Pollution emissions which contribute to the
formation of ground level ozone come from motor vehicle exhaust, various industrial processes,
electricity generation and evaporating vapors (including gasoline) from human and natural biogenic
Breathing ozone can trigger a variety of health problems, especially for children, older adults, people
who are physically active outside, and anyone who has a lung disease such as asthma. Ground level
ozone has also been shown to have harmful effects on vegetation and ecosystems.
For more information, please contact Minor Barnette at (336) 703-2440 or via email