| 吴 蓉,廖 凯,邓燕青,郑嘉明,卢静媛.江西省大气降水水质特征分析及其对地表水环境的影响[J].江西水利科技,2020,(5): |
| 江西省大气降水水质特征分析及其对地表水环境的影响 |
| Analysis of water quality characteristics of atmospheric precipitation in Jiangxi province and its influence on surface water |
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| DOI： |
| 中文关键词: 大气降水 水质 离子特性 地表水 影响分析 |
| 英文关键词: Atmospheric precipitation Water quality Ionic speciality Surface Water Impact analysis |
| 基金项目: |
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| 中文摘要: |
| 对江西省107个大气降水水质监测点采集的418个降水水样进行实验室检测，结合388个江河地表水水质同步监测资料，研究大气降水的主要污染物以及降水水质对地表水水质的影响.从降水pH值、电导率、离子浓度值的分布及其时空分布特征、降水污染类型等方面分析了江西省大气降水化学特性及其对地表水质的影响.结果表明：江西省大气降水类型主要为硫酸、硝酸混合型污染；主要离子浓度随季度变化明显，除NO2-以外所有离子浓度在第四季度出现一个升高状态，达到全年最高值；pH、电导率、离子浓度数据与降水量有一定关系.通过大气降水和地表水水质进行比对分析，各个离子的大气降水含量与地表水含量之间均没有明显的相关性，说明大气降水对地表水环境无明显影响. |
| 英文摘要: |
| Based on 418 water samples collected from 107 precipitation monitoring stations of Jiangxi hydrologic Bureau in 2019，combined with the surface water quality monitoring data of 388 rivers，the temporal and spatial variation of chemical speciality of precipitation which from precipitation pH value，conductivity，ion concentration and its time variation trend，precipitation pollution type，etc.The results show that：the type of precipitation in Jiangxi province is sulfuric acid and nitric acid mixed pollution；the concentration of major ions changed significantly with season beside NO2the concentration of all ions increased in the fourth quarter which reaching the highest point of the year，pH value，conductivity，and ion concentration have certain relation with precipitation.Through atmospheric precipitation and surface water quality comparative analysis，there is no obvious correlation between the precipitation content of each ion and the surface water content，which indicates that meteoric precipitation has no obvious influence on surface water environment. |
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