Air concentrations of organochlorine compounds related to wind direction and compared with biota concentration
- Stockholm Univ. (Sweden). Inst. of Applied Environmental
Persistent organic compounds are long-range transported by air. Air samples were collected at two background meteorological stations, one southern at Gotland in the central Baltic and one northern, close to the polar circle. The collection was a part of the Swedish Dioxin Survey Project. Air sampling was carried out from fall 1990 to spring 1991 using a high-volume sampler. Air trajectories suggesting stable weather conditions decided which samples to be analyzed for e.g. PCBs, polychlorinated naphthalenes (PCN), chloroparaffines, HCHs and Toxaphene. The gas-phase concentrations of the seven PCB congeners 28, 52, 101, 118, 138, 153, 180 were in the low pg/m{sup 3} range, while the concentration of the nonortho PCB 77 was about two orders of magnitude lower. High concentrations were usually correlated with SW winds and low concentrations with N to NW winds. Air masses coming from N to both sampling sites, resulted in nearly equal concentrations of the seven PCB congeners. PCNs were found in the gas phase of all samples at the pg/m{sup 3} level (total PCNs). The relative concentrations of the various contaminants were compared between air and four biological matrices collected in the vicinity of the air sampling locations. Cod, Herring and Herring feeding Guillemot from the Baltic and Pike from the northern sampling site were all collected within the Swedish National Monitoring Program.
- OSTI ID:
- 230836
- Report Number(s):
- CONF-9511137-; ISBN 1-880611-03-1; TRN: IM9623%%146
- Resource Relation:
- Conference: 2. Society of Environmental Toxicology and Chemistry (SETAC) world conference, Vancouver (Canada), 5-9 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Second SETAC world congress (16. annual meeting): Abstract book. Global environmental protection: Science, politics, and common sense; PB: 378 p.
- Country of Publication:
- United States
- Language:
- English
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