What is Ozone? Ozone is a gas that forms in the atmosphere when 3 atoms of oxygen are combined (03). It is not emitted directly into the air, but at ground level is created by a chemical reaction between oxides of nitrogen (NOx), and volatile organic compounds (VOC) in the presence of sunlight.

Ground-level Ozone the biggest part of urban smog, leads to asthma and essentially sunburns your lungs. Ozone NY is dedicated to educating individuals and businesses on Ground-level Ozone and the actions they can take to improve the air we breathe.

Personal website presents research concerning the meteorological transport of tropospheric (ground-level) ozone and its precursors.

St. Louis Air Quality and Clean Air Information. Health Effects of Ozone: there are thousands of children, elderly and persons with respiratory problems in the Greater St. Louis Region, who are particularly vulnerable to the effects of ozone, and each year many food crops are damaged by low-lying ozone.

Introduction to How Ozone Pollution Works: What is Ozone? Effects of Ozone, Avoiding Ozone Exposure, Reducing Ozone Pollution, Lots More Information.

A pollutant of particular interest is Tropospheric Ozone (O3). O3 is a critical atmospheric species that drives much of the tropospheric photochemistry. O3 regulates the oxidation capacity of the troposphere, influencing background levels of trace chemical species, and can influence the fate of polluting emissions as well as the amount of chemical deposition to the biosphere.

National Science and Technology Council Committee On Environment and Natural Resourcesfact Sheet - North American Research Strategy for Tropospheric Ozone Research Initiative.