|
|||||
|
|
Polychlorinated dibenzo-p-dioxins (PCDDs) and furans (PCDFs) in urban air and deposition in the United Kingdom |
|
| Authors: | Raquel Duarte-Davidson Peter Clayton Peter Coleman Brian J Davis Crispin J Halsall Peter Harding-Jones Karl Pettit Mike J Woodfield Kevin C Jones |
| Institution: | 1. Institute of Environmental and Biological Sciences, Lancaster University, LAI 4YQ, Lancaster, UK 2. Warren Spring Laboratory, Gunnels Wood Road, SGI 2BX, Stevenage, Hertfordshire, UK 3. Rechem Environmental Research, Charleston Road, Hardley, Hythe, SO4 6ZA, Southampton, UK |
| Abstract: | Polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) have been monitored in air and deposition at four UK urban sites (London, Cardiff, Manchester and Stevenage) since the beginning of 1991; data from the first 2 years are presented here. Median Σ2,3,7,8-substituted PCDD/F concentrations in air were 3.2, 4.0, 3.5 and 2.6 pg/m3 respectively for London, Cardiff, Manchester and Stevenage. Median Σ2,3,7,8-substituted PCDD/F deposition fluxes were 1.5 ng/m2/day in London, 1.4 ng/m2/day in Cardiff and Manchester and 0.79 ng/m2/day in Stevenage. Seasonal variations in the PCDD/F concentrations were observed at all sites for both air and deposition, with concentrations/fluxes generally elevated during the winter. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |