Title of article
Distribution patterns of PCDD/Fs in chlorinated chemicals
Author/Authors
Yuwen Ni، نويسنده , , Zhiping Zhang، نويسنده , , Qing Zhang، نويسنده , , Jiping Chen، نويسنده , , Yongning Wu، نويسنده , , Xinmiao Liang، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
6
From page
779
To page
784
Abstract
The purpose of this research was to determine polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) in five chlorinated chemicals (phthalocyanine copper, phthalocyanine green, chloranil-1 and 2, and triclosan), and to compare their 2,3,7,8-tetrachlordibenzo-IpI-dioxin equivalents (TEQ). The distribution patterns of total PCDD/Fs and 2,3,7,8-substituted PCDD/Fs were elucidated in detail. The TEQ values of toxic PCDD/Fs in all chemicals were in the range of 5.03–1379.55 ng I-TEQ/kg. The contribution of OCDD and OCDF in phthalocyanine green was 75% of the total TEQ. For chloranils, the maximum contribution of toxic PCDD/Fs was from 2,3,7,8-substituted HxCDF and 2,3,7,8-substituted HpCDF. The TEQ of HxCDF and HpCDF in chloranil-1 was 90% and in chloranil-2 was 71%. And the toxic contribution increased with the degree of chlorination for PCDFs.
Keywords
Polychlorinated dibenzo-p-dioxins , Polychlorinated dibenzofurans , chemicals , distribution pattern , toxic equivalent
Journal title
Chemosphere
Serial Year
2000
Journal title
Chemosphere
Record number
738121
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