摘要
用苯、己烷、异丙醇(7:2:1)混合溶剂萃取兰州市石油化工区及离市区西64公里农村的空气飘尘.萃取物能使人淋巴细胞姊妹染色单体互换频率(SCE)增高,使SCE比对照组增高一倍的浓度:化工区为23μg/ml、农村为47μg/ml,萃取物还能损伤DNA棋板,证明化工区空气飘尘的致突变或致癌的机率比农村大.
The air dust collected from petroleum chemical industrial region in Lanzhou and rural area 64 km from the. city were extracted by mixed solvent of benzene, hexane and isopropanol (7:2:1) for 8 hours. The sister chromatid exchange (SCE) frequency was increased by all extracts and the double SCE frequency concentration of extract from air dust in the extraction system was 23 μg/ml and 47 μg/ml for samples from industrial and rural areas respectively. The extracts were found to be able to damage the DNA template as well.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1989年第3期352-355,共4页
Acta Scientiae Circumstantiae
基金
国家自然科学基金资助项目
关键词
淋巴细胞
SCE
DNA损伤
空气飘尘
人
air dust
DNA damage
sister chromatid exchange
air pollution.
