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U.S. Department of Energy
Office of Scientific and Technical Information

Crop losses from air pollutants

Journal Article · · Environ. Sci. Technol.; (United States)
DOI:https://doi.org/10.1021/es00103a717· OSTI ID:6518562
It is generally agreed that ozone, sulfur dioxide, and nitrogen dioxide cause about 90% of the crop damage induced by gaseous air pollutants in the United States, but there has been little research on this problem until recently. Because of these research deficiencies and because it is ncessary to estimate crop losses resulting from air pollution in order to provide a better scientific basis for the secondary standards, the National Crop Loss Assessment Network (NCLAN) was established in 1980. The NCLAN program has four components. The first is to carry out experiments that reliably relate doses of pollutants to yields for those crops that are economically important. The second is to integrate these crop losses over entire regions using the dose-response information gained in the experiments, the acreage devoted to the crop, and the pollutant levels in each county. The third is to assess the amount of money lost each year from the effects of these pollutants on agriculture, and the fourth is to create models that relate crop yields to a variety of factors including the level of pollutant, water stress, stage of crop development, and temperature. The progress to date of the NCLAN program is detailed. (JMT)
OSTI ID:
6518562
Journal Information:
Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 16:9; ISSN ESTHA
Country of Publication:
United States
Language:
English