Experimental system for investigating vapor-particle partitioning of trace organic pollutants

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00163a004· OSTI ID:5522267

Foreman, W T; Bidleman, T F

An experimental system was designed to equilibrate urban air particulate matter on a filter with controlled vapor concentrations of semivolatile organic compounds (SOC) at 20/sup 0/C under simulated high-volume air sampling conditions. Vapor-particle distributions (V/P) for organochlorine pesticides and three- to four-ring polycyclic aromatic hydrocarbons were estimated from laboratory measurements of the apparent partition coefficient A(TSP)/F, where A and F are the adsorbent- and filter-retained SOC concentrations (ng/m/sup 3/) and (TSP) is the total suspended particle concentration (..mu..g/m/sup 3/). Laboratory measured A(TSP)/F correlated well with the subcooled liquid-phase vapor pressures (p/sup 0//sub L/) of the SOC tested but not with their solid-phase vapor pressures. Comparisons of field and laboratory A(TSP)/F are made, and implications of p/sup 0//sub L/-dependent partitioning to the atmospheric chemistry of SOC are discussed.

• Research Organization: Univ. of South Carolina, Columbia
• OSTI ID: 5522267
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 21:9; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION MONITORS
AROMATICS
CHLORINATED AROMATIC HYDROCARBONS
CONTROL
DATA
DIOXIN
EXPERIMENTAL DATA
FLUIDS
FURANS
GASEOUS WASTES
GASES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
MEASURING INSTRUMENTS
MONITORING
MONITORS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION CONTROL
POLYCYCLIC AROMATIC HYDROCARBONS
VAPORS
WASTES