呈贡大学城部分水域污染指标与微核技术相关性研究

Correlation study of the micronucleus technique and the pollution indicators of some water bodies in Chenggong University City of Kunming

采用蚕豆根尖微核技术与常规的物理化学相结合方法来检测水质,对昆明呈贡大学城部分水域污染情况进行了研究.利用蚕豆微核技术对各水样进行监测统计蚕豆根尖细胞对微核千分率(MCN)及污染指数(PI),并与水体中COD_(cr)、BOD_5、DO水体污染指标进行了相关性比较;蚕豆根尖微核技术监测结果与水体污染指标的综合评价结果相一致.水体的污染程度与蚕豆的微核率、污染指数呈正相关;蚕豆微核率与COD_(cr)水体指标呈正相关的关系,与DO水体指标呈负相关的关系,与BOD_5水体指标的相关性不明显.水体中COD_(cr)、DO、BOD_5等含量,对蚕豆微核的形成会起到直接或间接的促进作用,水体的污染程度也直接影响了蚕豆微核的形成.

This was a study of the pollution of some water bodies in Chenggong University City of Kunming by using both the Vicia faba micronucleus technology and the popular physicochemical method. It analyzed the MCN‰ of the Vicia faba root -tip cells of the samples and pollution index （P I） , and compared the rates of CODcr ,BOD5 and DO as the pollution indicators in the above water bodies. The micronucleus test results were consistent with the comprehensive evaluation results of the pollution index. The pollution index of the water bodies was positively correlated with the water pollution and the micronucleus rate. The correlation analysis showed that the micronucleus rate was significantly positively correlated with CODer, and negatively correlated with DO, while no significant correlation with BOD5. The DO, BODs and COD, in the water bodies had a direct or indirect impact on the formation of the broad bean micronucleus. The pollution degree of the water bodies also had a direct impact on the formation of the broad bean micronucleus.