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作者对30名接触焦油沥青(CTPV)的钢铁厂焦炉工进行了淋巴细胞染色体畸变和姊妹染色单体互换研究。对照组为50名布鲁克海文国家实验室工作人员。作业工人接触 CTPV 浓度为18～13533mg/m~3·y。
The authors conducted a study of chromosome aberrations in lymphocytes and sister chromatid exchanges of 30 steel coke oven workers exposed to tar pitch (CTPV). The control group was 50 Brookhaven National Laboratory staff. Workers exposed to CTPV concentration of 18 ~ 13533mg / m ~ 3 · y.