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Document ID (ISN)104388
CIS number 05-635
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2005
Convention or series no.
Author(s) Kumagai S., Koda S.
Title Polychlorinated dibenzo-p-dioxin and dibenzofuran concentrations in serum samples of workers at an infectious waste incineration plant in Japan
Bibliographic information Feb. 2005, Vol.2, No.2, p.120-125. 36 ref.
Abstract In 1998-2000, concentrations of summed polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in the exhaust gas of an infectious waste incineration plant were found to be considerably in excess of the Japanese legal limit value of 80ng toxic equivalents (TEQ)/m3. The incinerator ceased operation in November 2000. This study investigated whether the incinerator workers were exposed to high levels of PCDDs and PCDFs. Blood samples of five workers and five unexposed control subjects were collected one month and 16 months after the end of the occupational exposure. Ash remaining in the incinerator and dust deposited around the conveyer and incinerator areas was also collected; TEQ values were 44 and 10ng TEQ/g, respectively. A month after the end of occupational dioxin exposure, mean TEQ for the workers was 49.1pg TEQ/g lipid, 2.7 times higher than among the controls, while at 16 months, it was still 1.6 times higher than among the controls.
Descriptors (primary) chlorinated dibenzodioxins; disposal of harmful waste; exposure evaluation; chlorinated benzofurans; incinerators; Japan
Descriptors (secondary) dust; ashes; determination in blood; permissible levels; case-control study; smoke
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Exposure evaluation
Heterocyclic compounds
Waste collection and disposal