其他题名PM_(2.5) in Northern Coastal Area of Shandong Peninsula: Correlation between Its Acidity and Chemical Composition in Winter
杨琳1; 李胜1; 陈权文1; 李睿1; 曲琳1; 田崇国2
发表期刊环境科学与技术
ISSN1003-6504
2018-10-15
卷号41期号:10页码:176-183
关键词细颗粒物水溶性离子冬季山东半岛屺坶岛
研究领域环境科学
DOI10.19672/j.cnki.1003-6504.2018.10.025
产权排序(1)国家海洋局烟台海洋环境监测中心站
; (2)中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所)山东省海岸带环境过程重点实验室中国科学院烟台海岸带研究所
作者部门海岸带环境过程实验室
英文摘要To investigate the acidity variation characteristics of fine particulate matter (PM_(2.5)) in the areas down-wind of Jing-Jin-Ji region in winter, the Qimu Island Environmental Monitoring Station, situated in Shandong peninsula, conducted a PM_(2.5) sampling project for the period from 3 January-11 February, 2014 according to the sample collection schedule: one sampling every 12 hours. The analytic results of the samples showed that the average mass concentrations of PM_(2.5) during the sampling period were (77.1±58.7) μg/m~3; the total content of water soluble ions including SO_4~(2-), NO_3~-, Cl~-, NH_4~+, Ca~(2+), K~+, Na~+ and Mg~(2+) accounted for (37.3±16.3)% of PM_(2.5) mass, among others, the share of SO_4~(2-), NO_3~-and NH_4~+ were the most, and no obvious variation of the contents of PM_(2.5) and the ions was noted day and night, but the variation was comparatively remark- able according to the trajectory classification of clustered air mass. On the basis of the assessment by the ion balance method and modeling of ISORROPIAⅡ, total acidity and in-situ acidity were (309±544) nmol/m~3and (193±292) nmol/m~3, respective- ly, and no notable variation of total acidity of PM_(2.5) was observed for the day and night but the change was significant according to classified clustered air mass. The M-K test indicated that acidity decreased when the 2nd class clustered air mass oc- curred, and the linear regression analysis suggested that it was the in-situ acidity that notably influenced the total acidity and the water content in PM_(2.5) was unlikely the main factor that restricted acidity of PM_(2.5).
中文摘要为了解冬季京津冀下风向PM_(2.5)的酸度变化特征,2014年1月3日-2月11日,在山东半岛北部临海的国家海洋局屺坶岛海洋环境监测站,按12 h频次采集了白天和夜晚的PM_(2.5)样品。采样期间,PM_(2.5)日均浓度为(77.1±58.7)μg/m~3,硫酸根(SO_4~(2-))、硝酸根(NO_3~-)、氯离子(Cl~-)、铵离子(NH_4~+)、钙离子(Ca~(2+))、钾离子(K~+)、钠离子(Na~+)、镁离子(Mg~(2+))的总浓度占PM_(2.5)浓度的(37.3±16.3)%,其中SO_4~(2-)、NO_3~-和NH_4~+所占的比例最高。PM_(2.5)及其离子成分浓度的昼夜变化不显著,但按聚类气团轨迹分类具有显著性的变化。离子平衡法和ISORROPIAⅡ模拟得出PM_(2.5)总酸度和原位酸度均值分别为(309±544)nmol/m~3和(193±292)nmol/m~3。PM_(2.5)的酸度变化的昼夜变化也不显著,但聚类气团分类差异比较明显。M-K检验表明,第Ⅱ类气团显著降低PM_(2.5)的总酸度。线性回归分析表明,PM_(2.5)原位酸度是影响总酸度的主要因素,水含量不是限制PM_(2.5)酸度的主要因素。
资助机构国家自然科学基金项目#41471413; 中国科学院战略性先导科技专项#XDA11020402; 中国科学院海岸带环境过程与生态修复重点实验室开放基金#2016KFJJ01
收录类别CSCD
语种中文
CSCD记录号CSCD:6356602
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24671
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
通讯作者曲琳作者单位1.国家海洋局烟台海洋环境监测中心站;
2.中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所)山东省海岸带环境过程重点实验室中国科学院烟台海岸带研究所
推荐引用方式
GB/T 7714杨琳,李胜,陈权文,等. 山东半岛北部临海冬季PM2.5酸度和组成的关系[J]. 环境科学与技术,2018,41(10):176-183.
APA杨琳,李胜,陈权文,李睿,曲琳,&田崇国.(2018).山东半岛北部临海冬季PM2.5酸度和组成的关系.环境科学与技术,41(10),176-183.
MLA杨琳,et al."山东半岛北部临海冬季PM2.5酸度和组成的关系".环境科学与技术 41.10(2018):176-183.
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