Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.
College of New Energy and Environment, Jilin University, Changchun, 130021, China.
Environ Sci Pollut Res Int. 2021 Apr;28(15):18667-18685. doi: 10.1007/s11356-020-12059-2. Epub 2021 Jan 5.
Serious groundwater pollution not only affects the development of enterprises but also threatens the life and health of residents. To explore the utilization potential of shallow groundwater and the status of water quality pollution in Daqing city, factor analysis and Kriging spatial interpolation methods were applied to analyze the spatial distribution characteristics of pollution sources. The results showed that the HCO-Ca + Mg type water with a maximum salinity of 1.5 g/L was the main chemical type of shallow groundwater in this area. Based on the Fe pollution index, the shallow underground water quality in the northeast of Daqing city can be used for drinking. Due to higher salinity, the locations of the availability of groundwater for irrigation only were in the west. Multivariate statistical analysis was carried out using a factor analysis method, and eight main impact factors were extracted in the study. The pollution sources of human activity impact factors were mainly found to be the direct discharge of organic matter from industrial wastewater in petrochemical enterprises and domestic sewage and the inappropriate or excessive application of agricultural fertilizers. The primary geological environment factors were mainly affected by the hydrogeological and runoff conditions in the study area. Pollution factors were mainly distributed in the northeast of the study area where the pollution was a serious problem, while those in the south-central area were fewer and the pollution was light. This study provides a scientific decision basis for the application of groundwater and the management of groundwater resources in this area.
严重的地下水污染不仅影响企业的发展，还威胁着居民的生命和健康。为了探索大庆市浅层地下水的利用潜力和水质污染状况，采用因子分析和克里金空间插值方法，分析了污染源的空间分布特征。结果表明，HCO-Ca++Mg 型水是该地区浅层地下水的主要化学类型，其最大矿化度为 1.5g/L。基于 Fe 污染指数，大庆市东北部的浅层地下水资源可用于饮用。由于盐度较高，适合灌溉的地下水位置仅在西部。采用因子分析方法进行了多变量统计分析，提取了 8 个主要影响因素。发现人类活动影响因素的污染源主要是石化企业工业废水中有机物的直接排放以及生活污水和农业化肥的不当或过量施用。主要的地质环境因素主要受研究区水文地质和径流水条件的影响。污染因素主要分布在研究区东北部，污染严重，而中南部地区污染较少，污染较轻。本研究为该地区地下水的利用和地下水资源管理提供了科学决策依据。
