[Study of cytogenetic damages in peripheral blood of styrene exposed workers].

The three indices of chromosome aberration (CA), sister-chromatid exchanges (SCEs) and micronuclei were used simultaneously to ascertain the cytogenetic effects on eighty-three styrene exposed workers under current industrial hygienic conditions in two glass fiber reinforced plastics factories. Our results showed that exposure to styrene at a concentration of 129.3 mg/m3 (range 48.3-223.9 mg/m3) could result in an increase of the frequencies of CA and micronuclei but had little influence on the frequency of SCEs.