Photochemical pollution at two southern California smog receptor sites
- DGA, Inc., Ventura, CA (United States)
A one-year survey of air quality has been carried out at two southern California inland locations, Perris and Palm Springs to evaluate transport of photochemical smog from the Los Angeles area and to assess population exposure to toxic air pollutants in the Coachella Valley and eastern Riverside County. Air pollutants measured included formaldehyde, acetaldehyde, nitric acid, and peroxyacetyl nitrate (PAN). Acetic acid was also measured as part of the time-integrated method employed to measure PAN. In addition, intensive studies were carried out at both locations and included measurements of aldehydes, nitric acid, PAN, peroxypropionyl nitrate (PPN), methylchloroform and tetrachloroethylene. Maximum concentrations of HCHO, CH{sub 3}CHO, HNO{sub 3}, PAN, PPN, CH{sub 3}COOH and C{sub 2}Cl{sub 4} were 26, 21, 4.5, 7.6, 0.42, 6.6 and 0.29 ppb in Palm Springs and 15, 30, 6.3, 9.1, 0.73, 7.8 and 0.43 ppb in Perris. Pollutant concentrations measured in Palm Springs and Perris are compared to those measured in the Los Angeles area, and are discussed in terms of formation and removal during transport.
- OSTI ID:
- 7264192
- Journal Information:
- Journal of the Air and Waste Management Association; (United States), Journal Name: Journal of the Air and Waste Management Association; (United States) Vol. 42:6; ISSN JAWAE; ISSN 1047-3289
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ACETALDEHYDE
ACETIC ACID
AIR POLLUTION
AIR POLLUTION MONITORING
ALDEHYDES
CALIFORNIA
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DEVELOPED COUNTRIES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
ESTERS
FORMALDEHYDE
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MASS TRANSFER
MONITORING
MONOCARBOXYLIC ACIDS
NITRATES
NITRIC ACID
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
NORTH AMERICA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PEROXYACETYL NITRATE
PHOTOCHEMICAL REACTIONS
POLLUTION
SMOG
SURVEYS
USA