滕州市浅层地下水质量评价与成因分析

Environmental Quality Evaluation and Origin Analysis of Shallow Groundwater in Tengzhou City

摘要:

浅层地下水是陆地水资源的重要组成部分，与人类生产生活密切相关。基于生态地球化学调查项目，按照1点/16km2的密度对滕州市浅层地下水进行调查，共采集地下水样品95件，分析Fe、Mn等35项指标。结果表明，研究区浅层地下水质量总体较好，pH、CN、Cr6+、溶解性总固体等21项指标含量基本符合《地下水质量标准》(GB／T 14848-2017)中Ⅲ类地下水规定的阀值，适用于集中式生活饮用水水源及工农业用水。影响研究区浅层地下水质量的主要因子是Fe和总硬度，由原生地质环境及人类活动引起。研究结果可为研究区经济社会发展和用水安全提供基础性资料和决策依据。

Abstract:

Shallow groundwater is one of the important water resources. It is closely related to human production and life. Based on ecological geochemical survey project, shallow groundwater in Tengzhou city has been investigated at a density of 1 point in 16km2. 95 groundwater samples have been collected, and 35 indicators, such as Fe and Mn have been analyzed. It is showed that the overall quality of shallow groundwater in the study area is good, and the contents of 21 indicators, such as pH, CN , Cr6+, and total dissolved solids basically meet the threshold values specified in the "Groundwater Quality Standard" (GB/T 14848—2017) for class Ⅲ groundwater, which is suitable for centralized domestic drinking water sources and industrial and agricultural water use. The main factors affecting the quality of shallow groundwater in the study area are Fe and total hardness, which are caused by the primary geological environment and human activities. The research results can provide fundamental data and decision-making basis for economic and social development and water safety in the study area.