ZHANG Yongsan1，2, LIU Jing3, WANG Xiaoyu1，2, ZHAO Xiaobo1，2, ZHANG Yang, HU Zhaoguo1，2, ZHANG Baotao1，2, GONG Jiagui1，2 XU Guangdong1，2
（1. Geological Exploration Institute of Shandong Zhengyuan, China Metallurgical Geology Bureau, Jinan, 250014;
2. Institute of Mineral Resources Research，China Metallurgical Geology Bureau，Beijing 101300;
3. Exploration Research Institute of Shandong Coal Field Geology Bureau, Jinan, 250104.）
Abstract：Linzi District is a famous chemical city, which has played a great role in promoting regional economic development. However, the environmental problems in the production process are also very prominent. In the light of the characteristics of Linzi area, such as wide distribution of groundwater, complex geomorphic and hydrogeological conditions, and so much chemical enterprises, the risk control factors of groundwater pollution are complex. Through coupling formation antifouling performance with groundwater contaminant sources，the integrated multi-index models were developed to divide the risk of groundwater in Linzi. Among them, the pollution risk in Hougao area is high. The analysis results of groundwater samples show that the groundwater in this area is seriously polluted by benzene, which confirms the effectiveness and objectivity of pollution risk classification. And the high-risk areas should take more strict prevention and control measures, such as improving the monitoring system, jointly adopting a variety of measures to block pollution routes, identifying pollution sources and joint disposal of unsaturated zone and aquifers to improve the quality of groundwater.
Key words：groundwater; risk zoning; formation antifouling performance; contaminant sources; Linzi
EARTH AND ENVIRONMENT Vol.50, No.6, Tot No.350, 2022, Page 876
