Indicator Profile of Ozone in Outdoor Air
Why Is This Important?Ozone is an odorless, colorless gas that forms both in the air at ground level and in the Earth's upper atmosphere (the stratosphere). Ground-level ozone forms when precursor pollutants that come from cars, power plants, and other sources react with each other in heat and sunlight.
While ozone in the stratosphere creates a layer that protects us from the sun's harmful ultraviolet (UV) rays, ozone at ground level may irritate and damage the lungs, and harm human health in other ways. The federal health-based standard for ozone in outdoor air is 0.075 parts per million (ppm), averaged over an 8-hour period.
Ozone in Outdoor Air, Number of Days Ozone Exceeded 0.075 ppm, by County, 2010
Data NotesNot all New Jersey counties have a monitoring station for ozone. Only those counties with monitoring stations are listed.
Data SourcesNew Jersey Department of Environmental Protection, Bureau of Air Monitoring;
Other Graphical Views
DefinitionDays (and person-days) in which the average concentration of ozone in outdoor air exceeds the regulatory standard at an ozone monitoring point
How We Calculated the Rates
Page Content Updated On 06/26/12, Published on 06/26/12