CAJ | 학술논문

以重庆市沙坪坝区、北碚区、璧山县、铜梁县等9个区县地下水为对象，对表层土壤物理性质、地下水化学特征及地下水水质进行了测试分析，根据《地下水质量标准》(GB/T14848-93)，对地下水进行了单项组分评价和质量综合评价，并对污染成因进行了分析。结果显示研究区内地下水以 HCO3-、SO42-- Ca2+、Mg2+型和HCO3--Ca2+、Mg2+型为主，地下水质量不容乐观，超标率达到了78%，地下水中总硬度、硫酸盐、锰等因子的背景值较高，超标显著，亚硝酸氮和氨氮的超标率达到了18.5%，最大超标倍数分别为86.5倍和44.9倍。
이중경시사평패구、북배구、벽산현、동량현등9개구현지하수위대상，대표층토양물이성질、지하수화학특정급지하수수질진행료측시분석，근거《지하수질량표준》(GB/T14848-93)，대지하수진행료단항조분평개화질량종합평개，병대오염성인진행료분석。결과현시연구구내지하수이 HCO3-、SO42-- Ca2+、Mg2+형화HCO3--Ca2+、Mg2+형위주，지하수질량불용악관，초표솔체도료78%，지하수중총경도、류산염、맹등인자적배경치교고，초표현저，아초산담화안담적초표솔체도료18.5%，최대초표배수분별위86.5배화44.9배。
To investigate the chemical characteristics and pollution status of shallow groundwater in western Chongqing, 9 regions/ counties in western Chongqing were selected, 27 groundwater and soil samples were collected, water quality indica-tors and soil physical properties were measured, the chemical characteristics were classified with Shoka Lev classification meth-od. The results show that chemical types of groundwater in western Chongqing mainly on HCO3 -( SO4 2-) - Ca2+( Mg2+) and HCO3 - - Ca2+( Mg2+) , and the quality of 78% groundwater is polluted by SO4 2-,Mn2+,NO2 -,NH4 + et al.