陕西省府谷哈镇水环境及土壤环境现状研究

在进行"陕西省陕北石炭—二叠纪煤田府谷矿区马家梁-房子坪勘查区普查"项目的地质及水工环1:2. 5万地质填图中,对府谷哈镇周围部分井、泉、水库及土壤进行了采样分析,采集水样共10件,其中水质简分析4件、水质环境分析4件、水质全分析2件,采集土壤样品4件。分析结果发现该区水质多属CO32-·HCO3-·SO42--Na+·Ca2+·Mg2+型,又根据Cl-、SO42-、Mg2+、Na+之间的关系计算得出,主要为重碳酸钠型和硫酸钠型水,矿化度介于138～1145 mg/L之间,平均约580. 43 mg/L,水质中重金属铅、镉及挥发酚、pH超标。土壤分析结果显示区内的汞含量基本都超标;土污染1、4的镉元素含量超标;土污染1的镉、汞、砷、铅、锌值与其他样品相比,都表现为高值超出标准值,说明贺家梁-范家梁一带土污染较为严重。

Study on the current situation of water environment and soil environment in Hagu Town,Fugu,Shaanxi Province

In the"Geological and Hydraulic Ring 1:25,000 geological maps of the"General Survey of Majialiang-House Ping Exploration Area in the Fogang-Permian Coalfield Fugu Mine Area,Shanbei,Shaanxi Province",some wells and springs around Fuguha Town The reservoir and soil were sampled and analyzed.A total of 10 water samples were collected,including 4 waters quality briefly analysis,4 waters quality environmental analysis,2 waters quality detailed analysis,and 4 soil samples.The results show that the water quality in this area is mostlyCO3^2-·HCO3^-·SO4^2--Na^+·Ca^2+·Mg^2+ type,and it is calculated according to the relationship betweenCl^-、SO4^2-、Mg^2+and Na^+,mainly for sodium bicarbonate type and Sodium sulphate type water,the degree of mineralization is between 138 ~ 1 145 mg/L,an average of about 580.43 mg/L,heavy metal lead,cadmium and volatile phenol,PH exceeded the standard.The results of soil analysis showed that the mercury content in the area was basically exceeded;the cadmium content of soil pollution 1 and 4 exceeded the standard;the cadmium,mercury,arsenic,lead and zinc values of soil pollution 1 were higher than other samples.The standard value indicates that the soil pollution in Hejialiang-Fanjialiang area is more serious.