利用广州市从化区2015年丰、枯两季地下水21项指标的监测资料，采用综合要素评价法和单指标评价法分别进行评价，结果表明广州市从化区枯水期地下水水质优于丰水期，以Ⅲ类/较好作为超标标准时，丰、枯两季的超标物基本相同，总大肠菌群、铁和锰3种指标对评价结果影响较大；采用地下水综合要素评价法得到的监测点超标率与单指标评价法相同，但二者所得结果中监测点的水质标准分布不同。结果显示地下水水质评价受到取样时间、评价指标和方法的影响，结论可作为下一步地下水监测评价工作的参考资料。%Based on the monitoring data ( 21 indicators) of groundwater in Guangzhou Conghua District during abundance and dry sea-sons, comprehensive index evaluation method and single index evaluation method are adapted to evaluate groundwater quality. The re-sults show that groundwater quality is better during dry season. The exceeded indices are basically the same of both seasons when classⅢ/better as the exceeding standard. The three indices of total coliforms, iron and manganese have greater effect on the evaluation re-sult. The excessive rate of both methods is the same, but the distribution of water quality standards is different. The conclusion is that the sampling time, evaluation index and method are influent factors to groundwater quality evaluation, which can be reference material for groundwater monitoring and evaluation work in the future.
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