Loading…

Rapid Changes in PCB and OC Pesticide Concentrations in Arctic Snow

The short-term fate of polychlorinated biphenyl (PCB) and organochlorine (OC) pesticides in the surface snowpack was investigated by taking consecutive air and snow samples over a 12 day period at Tromsø in the Norwegian Arctic. A wide range in PCB and OC pesticide concentrations was observed in sno...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science & technology 2005-05, Vol.39 (9), p.2998-3005
Main Authors: Herbert, B. M. J, Halsall, C. J, Villa, S, Jones, K. C, Kallenborn, R
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The short-term fate of polychlorinated biphenyl (PCB) and organochlorine (OC) pesticides in the surface snowpack was investigated by taking consecutive air and snow samples over a 12 day period at Tromsø in the Norwegian Arctic. A wide range in PCB and OC pesticide concentrations was observed in snow and was attributed to the systematic decrease in concentrations that occurred over the study period. For example, ΣPCB concentrations ranged from 2500 to 300 pg L-1 (meltwater) with a rapid decrease observed during the first 96 h. Rates of decline (k s) conformed to first-order kinetics, with similar rates observed for all compounds measured in this study (k s = 0.01 ± 0.001 h-1). Because the particle bound fraction accounted for
ISSN:0013-936X
1520-5851
DOI:10.1021/es040076l