Atmospheric processes

Journal Article · Thu Mar 31 23:00:00 EST 1988 · Environmental Science and Technology; (USA)

DOI:https://doi.org/10.1021/es00169a002· OSTI ID:5285631

Bidleman, T F ^[1]

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1. Univ. of South Carolina, Columbia (USA)

In this article the role of vapor-particle partitioning in the atmospheric removal of semivolatile organic compounds (SOC) such as pesticides, PCBs, and PAHs is explored. Prediction of atmospheric fluxes of SOCs is limited by the uncertainties inherent in wet and dry deposition of particles, plus uncertainties in air-to-water vapor exchange and vapor-particle partitioning. Despite artifact problems in hi-vol sampling, it is encouraging that the filter-retained fraction agrees within about a factor of 3 with {phi} calculated from Junge's model, and that apparent aerosol-bound percentages correlate with depositional properties. Additional study is needed on methods to distinguish gaseous and particulate SOCs in the atmosphere, on details of the interactions between SOC vapors and atmospheric particulate matter, and on the physical properties of SOCs.

• OSTI ID: 5285631
• Journal Information: Environmental Science and Technology; (USA), Journal Name: Environmental Science and Technology; (USA) Vol. 22:5; ISSN ESTHA; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AEROSOLS
AROMATICS
ATMOSPHERIC CHEMISTRY
CHEMISTRY
CHLORINATED AROMATIC HYDROCARBONS
COLLOIDS
DEPOSITION
DISPERSIONS
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PARTICLES
PARTICULATES
PARTITION
PESTICIDES
PHYSICAL PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
PRECIPITATION SCAVENGING
SAMPLING
SEPARATION PROCESSES
SOLS
WASHOUT