2013—2022年黄河宁夏段砷浓度指标变化分析研究  

Analysis of Change of Arsenic Concentration in Ningxia Section of Yellow River from 2013 to 2022

作　　者：赵倩 马烈娟 郭洪涛 王志亮 Zhao Qian;Ma Liejuan;Guo Hongtao;Wang Zhiliang(Ningxia Center for Ecological Environmental Monitoring,Yinchuan,Ningxia 750004)

机构地区：[1]宁夏回族自治区生态环境监测中心,宁夏银川750004

出　　处：《宁夏农林科技》2024年第7期36-40,共5页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：为了解黄河宁夏段近年来砷浓度变化对水质的影响,通过对近十年黄河宁夏段6个国控监测断面数据的趋势变化分析,利用spss模型中斯皮尔曼相关系数(Spearman)对黄河宁夏段代表泥沙含量的指标浊度与砷监测浓度(质量浓度,下同)开展相关性分析研究。结果表明:黄河宁夏段砷监测浓度呈现出境断面高于入境断面,下游断面高于上游断面,较大值集中在每年的6―9月,丰水期浓度明显偏高的特点。泥沙含量对砷监测浓度产生较大影响,是导致砷监测浓度上升的主要因素之一。由于黄河宁夏段水体中主要监测指标及砷监测浓度暂时控制在地表水Ⅰ类标准范围内,后续是否会影响黄河宁夏段水质还需进一步研究分析。In order to understand the influence of arsenic concentration changes on water quality in Ningxia section of Yellow River in recent years,an analysis was conducted on the changing trend of the data from six national control monitoring sections in the Ningxia section of the Yellow River in the past decade.The Spearman correlation coefficient in the SPSS model was used to conduct a correlation analysis between the turbidity of the representative sediment content indicator and the arsenic monitoring concentration in the exit section of the Yellow River.The results showed that the monitoring concentration of arsenic in the Ningxia section of the Yellow River showed a higher concentration in the outbound section than in the inbound section,and a higher concentration in the downstream section than in the upstream section.The larger values were concentrated in the period from June to September each year,and the concentration was significantly higher during the flood season.The sediment content had a great influence on the monitoring concentration of arsenic,which was one of the main factors leading to the increase of the monitoring concentration of arsenic.However,as the main monitoring indexes and arsenic concentration of the Ningxia section of the Yellow River are temporarily controlled within the category I standard of surface water,further study and analysis are needed to determine whether the water quality of the Ningxia section of the Yellow River will be affected.

关 键 词：黄河宁夏段水质 砷浓度 变化趋势 

分 类 号：X522[环境科学与工程—环境工程]