[Genotoxicity of stack gas condensates of Bavarian waste incineration plants. IV. Overview and short comments on the results]

Autor: F, Raabe, G, Wichmann, D, Dautzenberg, C, Lierse, J, Zluticky, G, Metzner, W, Mücke
Jazyk: němčina
Rok vydání: 1999
Předmět:
Zdroj: Zentralblatt fur Hygiene und Umweltmedizin = International journal of hygiene and environmental medicine. 201(6)
ISSN: 0934-8859
Popis: Emissions from waste incineration plants can be monitored relatively simply and cost-effectively via stack gas condensates. We compared quantitative chemical-analytic data of stack gases with two genotoxicity tests. The tests employed, i.e. a new, simple UDS assay variant with the human lung cell lines NCI-H 322 and 358, developed for this purpose, and an automated version of the SOS chromotest, were validated with respect to the contents of stack gases analytically detected. As judged by Bavarian waste incineration plants, sampled in the years 1990 to 1995, we obtained the following principle results: A drastic reduction of the genotoxicity from stack gases in the sampling period was observed with both tests. There were found genotoxic stack gases with the more sensitive UDS assay also in modern plants at the end of sampling period. Up to 99% of the organic components were not detected by chemical analysis despite an extensive program of analytics. The concentration of the quantified cancerogenic organic single substances from the samples did not suffice to explain genotoxic effects in the stack gases. Unknown, not identified stack gas contents are mainly responsible for the genotoxic potential of the stack gases. According to our results, emissions of modern waste incineration plants are likely to increase the genotoxic hazardous potential of the air only insignificantly even in pollution-free zones.
Databáze: OpenAIRE