Assessment of urban population exposure to trichloroethylene and tetrachloroethylene by means of biological monitoring.

Exposure of the general population to trichloroethylene and tetrachloroethylene under normal environmental conditions, achieved with biological monitoring, was assessed, and the possible influence of these compounds via drinking water on the body burden was revealed. A total of 79 subjects with no known solvent exposure was selected, by stratified sampling, from the residents of the city of Zagreb. Trichloroethylene and tetrachloroethylene were determined in blood, and trichloroethanol and trichloroacetic acid were determined in plasma and urine.

A selection of biological indicators in occupational exposure to toluene and xylene.

Results of a comparative study of occupational exposure to toluene and xylene are presented. The study was carried out in a group of 24 workers from a paint factory and aimed to determine the most appropriate exposure indicators for use in biological monitoring. Measurements included toluene and xylene in blood and their metabolites in urine.

Assessment of exposure to trichloroethylene and tetrachloroethylene in the population of Zagreb, Croatia.

Human exposure to trichloroethylene (TRI) and tetrachloroethylene (perchloroethylene, PER) through air, food and drinking water was assessed by biological monitoring. By stratified sampling 39 subjects with no known solvent exposure were selected from the residents of the city of Zagreb (the capital of the Republic of Croatia). TRI and PER were determined in blood and their metabolites trichloroethanol (TCE) and trichloroacetic acid (TCA) in plasma and urine.