首页|连云港市区PM2.5中水溶性离子组分特征

连云港市区PM2.5中水溶性离子组分特征

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
2016年12月-2017年5月通过在线离子色谱采集分析连云港市区PM2.5中水溶性离子的浓度特征.结果表明, 观测期间, 连云港市区水溶性离子浓度和与PM2.5值变化趋势相同;NO3-、SO42-、NH4+、Cl-占全部水溶性离子的92.6％, 为水溶性离子的主要成分;NO3-、SO42-、NH4+、Cl-浓度变化明显, 其他离子浓度变化相对较小;对NH4+、NO3-、SO42-进行相关性分析, 发现其具有很好的相关性, NH4+与NO3-、SO42-的相关系数分别为0.913和0.885;通过回归拟合, NH4+主要以 (NH4) 2SO4和NH4NO3的形式存在.
Pollution character of PM2.5 water-soluble irons in Lianyungang city
In this paper, the concentration characteristics of water-soluble ions in PM2. 5 of Lianyungang city were analyzed by on-line ion chromatography from December 2016 to May 2017. The results showed that the concentration of water-soluble ions were the same as the change trend of PM2. 5 during the observation period. Water-soluble components including NO3-、SO42-、NH4+ and Cl-were dominant in PM2. 5, accounting for 92. 6％ of water-soluble irons. Concentration change of NO3-、SO42-、NH4+ and Cl-were more obvious than other ions. High linear correlation between NH4+ and NO3-、SO42- were obtained, with a coefficient of 0.913 and 0. 885. Through regression fitting, NH4+ exists mainly in the form of NH4 NO3 and ( NH4) 2 SO4.

PM2.5particleswater-soluble ionschemical compositionLianyungang city

姚瑶、陈程、张丽

展开 >

连云港市环境监测中心, 江苏 连云港 222001

PM2.5 颗粒物 水溶性离子 化学组成 连云港

2018

污染防治技术
中国环境科学学会 江苏省环境科学学会

污染防治技术

ISSN：
年,卷(期)：2018.31(5)
  • 1
  • 10