Vapor-particle partitioning of semivolatile organic compounds: estimates from field collections

Journal Article · Wed Oct 01 00:00:00 EDT 1986 · Environ. Sci. Technol.; (United States)

DOI:https://doi.org/10.1021/es00152a013· OSTI ID:7109932

Bidleman, T F; Billings, W N; Foreman, W T

Pesticides, polychlorinated biphenyls (PCB), and other semivolatile organic compounds (SOC) exist in air as vapors and are associated with particulate matter. Factors influencing the vapor-to-particle distribution can be obtained from high-volume sampling experiments using a glass-fiber filter to collect particles and an adsorbent trap to collect vapors. Measurements of airborne organochlorine pesticides and PCB in four cities over a wide temperature range were used to estimate apparent partition coefficients A(TSP)/F, where A and F are the adsorbent- and filter-retained SOC concentrations (ng/m/sup 3/) and TSP in the total suspended particle concentration (..mu..g/m/sup 3/). A(TSP)/F were related to the average sampling temperature (T, kelvin) through log(A(TSAP)/F) = m/T + b. Fitted log(A(TSP)/F) at 20/sup 0/C were closely correlated with logp/sup 0//sub L/, the subcooled liquid vapor pressure. Heats of adsorption (..delta..H/sub A/), calculated from slopes m, were at most 2-4 kcal/mol greater than subcooled liquid heats of vaporization (..delta..H/sub VL/) and in most cases indistinguishable from ..delta..H/sub V,L/ at the 95% confidence level. 41 references, 3 figures, 5 tables.

• Research Organization: Univ. of South Carolina, Columbia
• OSTI ID: 7109932
• Journal Information: Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 20:10; ISSN ESTHA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL MONITORING
AEROSOLS
AIR FILTERS
AIR POLLUTION MONITORING
AROMATICS
CHLORINATED AROMATIC HYDROCARBONS
COLLOIDS
DATA
DEPOSITION
DISPERSIONS
ENTHALPY
EQUIPMENT
EXPERIMENTAL DATA
FILTERS
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
MATTER
MONITORING
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PARTICLES
PARTICULATES
PESTICIDES
PHYSICAL PROPERTIES
POLLUTION CONTROL EQUIPMENT
POLYCYCLIC AROMATIC HYDROCARBONS
PRECIPITATION SCAVENGING
SEPARATION PROCESSES
SOLS
THERMODYNAMIC PROPERTIES
TOTAL SUSPENDED PARTICULATES
TRANSITION HEAT
VAPOR PRESSURE
VAPORIZATION HEAT
VOLATILE MATTER
VOLATILITY
WASHOUT