title: Tetrachloroethene in exhaled air of persons living near pollution sources.
abstract: Exhaled air was analyzed for tetrachloroethene (PER) in teachers and 4-5-year-old pupils of a kindergarten situated near a factory, and in residents of an old folks ' home situated near a former chemical waste dump. The PER concentrations were higher in the exhaled air of children living near the factory (mean 24 micrograms/m3, n = 6) than in control children (mean 2.8 micrograms/m3, n = 11). In the old folks ' home, the PER concentrations in the exhaled air of people living on the first floor were higher (mean 7.8 micrograms/m3, n = 10) than in the exhaled air of the people living on the second floor and higher (mean 1.8 micrograms/m3, n = 19). From the results of this study, it is clear that in environmental exposure to tetrachloroethene, biological monitoring of exhaled air is a simple, efficient, effective and convenient method of assessing total ambient exposure of both young and aged subjects.
mesh_terms: D000368:Aged; D000393:Air Pollutants / Q000009:adverse effects*; D002675:Child, Preschool; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D007220:Industrial Waste / Q000009:adverse effects*; D008297:Male; D009426:Netherlands; D013750:Tetrachloroethylene / Q000009:adverse effects / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D007220:Industrial Waste; D013750:Tetrachloroethylene