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石河子市PM2.5中有机碳和元素碳的变化特征与来源解析

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郑晓伍, 陈家灯, 刘子龙, 李姗蔓, 宁建英, 鲁建江. 石河子市PM2.5中有机碳和元素碳的变化特征与来源解析[J]. 环境化学, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
引用本文: 郑晓伍, 陈家灯, 刘子龙, 李姗蔓, 宁建英, 鲁建江. 石河子市PM2.5中有机碳和元素碳的变化特征与来源解析[J]. 环境化学, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
shu
ZHENG Xiaowu, CHENG Jiadeng, LIU Zilong, LI Shanman, NING Jianying, LU Jianjiang. Characteristics and source apportionment of organic carbon and elemental carbon in PM2.5 in Shihezi, Xinjiang, China[J]. Environmental Chemistry, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
Citation: ZHENG Xiaowu, CHENG Jiadeng, LIU Zilong, LI Shanman, NING Jianying, LU Jianjiang. Characteristics and source apportionment of organic carbon and elemental carbon in PM2.5 in Shihezi, Xinjiang, China[J]. Environmental Chemistry, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
shu

石河子市PM2.5中有机碳和元素碳的变化特征与来源解析

  • 1.

    石河子大学化学化工学院新疆兵团绿色过程重点实验室,石河子, 832003;

  • 2.

    石河子大学医学院第一附属医院,石河子, 832002

  • 基金项目:

    国家自然科学基金（21667026）资助.

Characteristics and source apportionment of organic carbon and elemental carbon in PM2.5 in Shihezi, Xinjiang, China

  • 1.

    School of Chemistry and Chemical Engineering, Shihezi University, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi, 832003, China;

  • 2.

    The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, 832002, China

  • Fund Project: Supported by the National Natural Science Foundation of China (21667026).

  • 摘要: 本研究采集2015年9月至2016年8月石河子市不同类型天气下大气颗粒物样品，根据气象条件进行霾与沙尘分类，使用热光碳分析仪DRI 2001A进行有机碳（organic carbon，OC）与元素碳（elemental carbon，EC）测定，采用最小比值法估算二次有机碳（second organic carbon，SOC）质量浓度，主成分分析法（principle component analysis，PCA）分析其可能来源.结果表明：中霾天气下OC和EC平均质量浓度达到20.85±5.03、2.75±0.46 μg·m-3（沙尘天气18.9±4.4 μg·m-3，2.6±0.9 μg·m-3）.二次有机碳SOC在中霾天气下质量浓度为10.62±3.94 μg·m-3（沙尘天气9.3±3.7 μg·m-3），占OC浓度67%（沙尘天气67%）.霾与沙尘天气OC与EC相关系数低于非霾非沙尘天气，表明霾与沙尘天气较非霾非沙尘天气有着复杂的污染源.PCA分析表明，霾与沙尘天气下的碳气溶胶的主要排放源为机动车尾气，固定燃煤源和道路扬尘.本项研究分析了石河子市霾和沙尘天气下的碳气溶胶分布，有望为中国西部城市的霾和沙尘天气治理提供依据.
    Abstract: The primary and year-long PM2.5 samples were collected in Shihezifrom September 2015 to August 2016 and the concentrations of organic carbon(OC), elemental carbonc(EC) and second organic carbond(SOC) under different weather conditions were anzlyzed. Results show that the mean concentration of OC and EC in middle haze was 20.85±5.03 and 2.75±0.46 μg·m-3 (dust days was 18.9±4.4 and 2.6±0.9 μg·m-3). The average SOC in middle haze days was 10.62±3.94 μg·m-3 (dust days 9.3±3.7 μg·m-3), accounting for 67% of OC (dust days 67%), indicats that SOC was the major component of OC. The lower correlation coefficient of OC and EC showed that haze and dust has more complex pollution sources. PCA analysis indicats that the major sources of carbon aerosols in haze and dust days were gasoline exhaust, coal burning and road dust. This study revealed the distribution of carbon aerosols in different types of weather and may provide a scientific reference for further research in haze and dust control in Xinjiang area.
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  • 收稿日期:  2017-04-24
  • 刊出日期:  2018-01-15
郑晓伍, 陈家灯, 刘子龙, 李姗蔓, 宁建英, 鲁建江. 石河子市PM2.5中有机碳和元素碳的变化特征与来源解析[J]. 环境化学, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
引用本文: 郑晓伍, 陈家灯, 刘子龙, 李姗蔓, 宁建英, 鲁建江. 石河子市PM2.5中有机碳和元素碳的变化特征与来源解析[J]. 环境化学, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
shu
ZHENG Xiaowu, CHENG Jiadeng, LIU Zilong, LI Shanman, NING Jianying, LU Jianjiang. Characteristics and source apportionment of organic carbon and elemental carbon in PM2.5 in Shihezi, Xinjiang, China[J]. Environmental Chemistry, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
Citation: ZHENG Xiaowu, CHENG Jiadeng, LIU Zilong, LI Shanman, NING Jianying, LU Jianjiang. Characteristics and source apportionment of organic carbon and elemental carbon in PM2.5 in Shihezi, Xinjiang, China[J]. Environmental Chemistry, 2018, 37(1): 115-122. doi: 10.7524/j.issn.0254-6108.2017042401
shu

石河子市PM2.5中有机碳和元素碳的变化特征与来源解析

  • 1.  石河子大学化学化工学院新疆兵团绿色过程重点实验室,石河子, 832003;
  • 2.  石河子大学医学院第一附属医院,石河子, 832002
  • 收稿日期:  2017-04-24
基金项目:

国家自然科学基金（21667026）资助.

摘要: 本研究采集2015年9月至2016年8月石河子市不同类型天气下大气颗粒物样品，根据气象条件进行霾与沙尘分类，使用热光碳分析仪DRI 2001A进行有机碳（organic carbon，OC）与元素碳（elemental carbon，EC）测定，采用最小比值法估算二次有机碳（second organic carbon，SOC）质量浓度，主成分分析法（principle component analysis，PCA）分析其可能来源.结果表明：中霾天气下OC和EC平均质量浓度达到20.85±5.03、2.75±0.46 μg·m-3（沙尘天气18.9±4.4 μg·m-3，2.6±0.9 μg·m-3）.二次有机碳SOC在中霾天气下质量浓度为10.62±3.94 μg·m-3（沙尘天气9.3±3.7 μg·m-3），占OC浓度67%（沙尘天气67%）.霾与沙尘天气OC与EC相关系数低于非霾非沙尘天气，表明霾与沙尘天气较非霾非沙尘天气有着复杂的污染源.PCA分析表明，霾与沙尘天气下的碳气溶胶的主要排放源为机动车尾气，固定燃煤源和道路扬尘.本项研究分析了石河子市霾和沙尘天气下的碳气溶胶分布，有望为中国西部城市的霾和沙尘天气治理提供依据.

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