Term

ground-level ozone

Term

The ozone in the air near the Earthâs surface. Also known as ambient or tropospheric ozone. See also ozone, troposphere and ambient air.

Synonyms:

Source:

EEA Glossary

Context:

Comment

Definition source publication

EEA Ozone web

Publication year

2006

Definition source URL

http://www.eea.europa.eu/maps/ozone/

Organisation

EEA

Organisation full name

European Environment Agency

Subjects

Air and Climate Change

Long definition

At ground-level ozone is a secondary pollutant formed by the action of sunlight on primary pollutants; these are nitrogen oxides from vehicle emissions and industry and volatile organic compounds from vehicles, solvents and industry. Nitrogen oxides react in sunlight (photochemical reaction) to form ozone, a major constituent of photochemical smog.