A modified technique for field measurements of dry deposition fluxes of polychlorinated biphenyls in tropical regions

被引：2

作者：

Wurl, Oliver

Obbard, Jeffrey Philip

机构：

[1] Natl Univ Singapore, Trop Marine Sci Inst, Singapore 119223, Singapore

[2] Natl Univ Singapore, Div Environm Sci & Engn, Singapore 117576, Singapore

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2007年 / 387卷 / 1-3期

关键词：

dry deposition; polychlorinated biphenyls; Singapore;

D O I：

10.1016/j.scitotenv.2007.07.056

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This report focused on the development of a technique to measure dry deposition fluxes of PCBs in tropical environments. Temperature resistant double-adhesive tape has been used as a new surrogate surface for collection of deposited PCBs. The new technique includes the measurement of field blanks for the entire sampling period. A sonication-assisted extraction procedure has been validated for the extraction of PCBs from the tape. The new technique has been used in the field for a period of 4 months in the tropical region of Singapore. The average dry deposition flux measured for total PCBs was 15.3 ng m(-2) day(-1) and, on a global scale, this can be considered to be low. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：283 / 288

页数：6

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