Polychlorinated Dibenzo-p-Dioxin and Dibenzofuran in Aerial Deposition.

• KUROKAWA Youichi

  Fukuoka Institute of Health and Environmental Sciences

• MATSUEDA Takahiko

  Fukuoka Institute of Health and Environmental Sciences

• OSAKI Yasuhiko

  Fukuoka Institute of Health and Environmental Sciences

• YANAGAWA Masao

  Fukuoka Institute of Health and Environmental Sciences

Bibliographic Information

Other Title

• 大気降下物中のダイオキシン類

Abstract

Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/PCDFs) in aerial deposition were investigated. The dry-wet deposition (total amounts of dry and wet deposition) was collected into the jug with a glass funnel opened over a sampling period, and the wet-only deposition was collected into the jug equipped with a automatic wet-only collector. The concentration of total PCDDs and PCDFs in the dry-wet deposition were 91-559pg/l, and those in the wetonly deposition were 34pg/l and 25pg/l, respectively. The PCDD/PCDF fluxes in the dry-wet deposition were estimated to be 436-1206ng/m²/year (3.5-13.7ng (TEQ) /m²/year), and those in the wet-only deposition were 56ng/m²/year and 42ng/m²/year (0.10ng (TEQ) /m²/year and 0.13ng (TEQ) /m²/year, respectively) . The PCDD/PCDF fluxes for the dry-wet deposition were evaluated to be 10-30 times (30-100 times, TEQs) higher than those for the wet-only deposition. These results suggest that the dry deposition is the predominant pathway of PCDDs/DFs removal from the atmosphere.

Journal

• Journal of Environmental Chemistry

  Journal of Environmental Chemistry 2 (4), 849-855, 1992

  Japan Society for Environmental Chemistry

Keywords

• polychlorinated dibenzo-p-dioxin
• polychlorinated dibenzofuran
• aerial deposition

Details

• CRID: 1390001204370630656
• NII Article ID: 130004162888
• DOI: 10.5985/jec.2.849
• ISSN: 18825818
• ISSN: 09172408
• Web Site: http://www.jstage.jst.go.jp/article/jec1991/2/4/2_4_849/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed