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Research assesses ozone damage to crops

Journal Article · · Agric. Res.; (United States)
OSTI ID:6774914
Ozone and other air pollutants are costing farmers at least $1 billion in agricultural crop losses each year. Damaging ozone is caused by a photochemical reaction of sunlight with automobile and industrial exhausts containing nitrogen oxides and hydrocarbons. It is different from the ozone layer in the Earth's stratosphere that filters out ultraviolet sunlight but does not harm crops. Ozone is carried by prevailing winds, often for hundreds or thousands of miles. A typical long-term concentration, or level, of surface ozone is 0.05 ppm. In test areas, ozone levels ranged from about 0.04 to 0.06 ppm during a 7-hour day, from 9 a.m. to 4 p.m.
OSTI ID:
6774914
Journal Information:
Agric. Res.; (United States), Journal Name: Agric. Res.; (United States) Vol. 34:10; ISSN AGREA
Country of Publication:
United States
Language:
English