[Activity of various enzymes, BSP tests and blood serum protein fractions of workers of disinfection, de-insectization and deratization plants].

Serous activity of AspAT, A1AT, LDH, GLDH, AP, ChE was checked, and BSP retention and protein level as well as its electrophoretic division were determined in 42 DDD Plant workers. The subject group was divided into subgroups depending on the degree of exposure to various chemicals and length of occupational exposure. In a considerable percentage of subjects, changes in serous activity of the enzymes concerned and defective BSP retention were found. The biochemical parameters were analysed and a possibility was enhanced of the occurrence of subacute poisonings changing into chronic ones, including liver parenchyma lesion.