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首页> 外文期刊>The Science of the Total Environment >Characterization and source identification of PM_(2.5) and its chemical and carbonaceous constituents during Winter Fog Experiment 2015-16 at Indira Gandhi International Airport, Delhi
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Characterization and source identification of PM_(2.5) and its chemical and carbonaceous constituents during Winter Fog Experiment 2015-16 at Indira Gandhi International Airport, Delhi

机译：德里英迪拉·甘地国际机场2015-16冬季雾实验期间PM_（2.5）及其化学和碳质成分的表征和来源鉴定

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摘要

Data on mass concentration of PM2.5 and its carbonaceous and water soluble inorganic chemical ions were compiled through sampling of PM2.5 at Indira Gandhi International Airport, Delhi during Dec. 16, 2015-Feb. 15, 2016 under Winter Fog Experiment (WIFEX) programof the Ministry of Earth Sciences (MoES) and analysing the samples. The data so generated were interpreted in terms of their variation on different time scales and apportioning their sources.It is found that mass concentration of PM2.5 averaged over the whole period of observation was 198.6 +/- 55.6. The concentration of organic carbon (OC) and elemental carbon (EC) was 24.7 +/- 9.4 and 11.7 +/- 4.7 mu g/m(3) respectively with no any trend of increase or decrease over the observational period. SO42-, Cl- and NO3- dominated over other anions with their overall average concentration 34.0 +/- 23.1, 32.7 +/- 16.1 and 13.3 +/- 8.7 mu g/m(3) respectively. Among cations, NH4+ showed highest concentration with an average value of 21.0 +/- 10.6 mu g/m(3). Variation of daily average mass concentration of these parameters over the period of observation matched well with the variation of PM2.5 mass concentration indicating thereby to be the major contributors to the PM2.5 mass. NH4+ mostly occurred as NH4Cl and NH4NO3 and poorly as (NH4)(2)SO4 or NH4HSO4. H+ ion mostly occurred as H2SO4 and occasionally as HNO3. Carbonaceous aerosols and NO3- were mainly generated from fossil-fuel combustion. NH4+ and anthropogenic Cl- were mostly generated by biomass burning. The source of SO42- was found to be industries and thermal power plants. Continental Ca2+ and Mg2+ originated from thermal power plants and soil dust. (C) 2019 Elsevier B.V. All rights reserved.
机译：2015年12月16日至2月，通过在德里的英迪拉·甘地国际机场进行PM2.5采样，收集了PM2.5及其碳质和水溶性无机化学离子的质量浓度数据。根据地球科学部（MoES）的冬季雾实验（WIFEX）计划，于2016年15月15日进行了分析。如此生成的数据是根据它们在不同时间尺度上的变化和对它们的来源进行分配来解释的。发现整个观察期内PM2.5的平均质量浓度为198.6 +/- 55.6。有机碳（OC）和元素碳（EC）的浓度分别为24.7 +/- 9.4和11.7 +/- 4.7μg / m（3），在观察期内没有任何增加或减少的趋势。 SO42-，Cl-和NO3-以其他阴离子为主，其总平均浓度分别为34.0 +/- 23.1、32.7 +/- 16.1和13.3 +/- 8.7μg / m（3）。在阳离子中，NH4 +浓度最高，平均值为21.0 +/- 10.6μg / m（3）。这些参数在观察期内的日平均质量浓度的变化与PM2.5质量浓度的变化非常吻合，从而表明它们是PM2.5质量的主要贡献者。 NH4 +大多以NH4Cl和NH4NO3的形式出现，而很少以（NH4）（2）SO4或NH4HSO4的形式出现。 H +离子主要以H2SO4的形式出现，偶尔以HNO3的形式出现。碳质气溶胶和NO3-主要来自化石燃料燃烧。 NH4 +和人为产生的Cl-主要是由生物质燃烧产生的。发现SO42-的来源是工业和热电厂。大陆的Ca2 +和Mg2 +来自火力发电厂和土壤尘埃。 （C）2019 Elsevier B.V.保留所有权利。

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  • 来源
    《The Science of the Total Environment》 |2019年第20期|687-696|共10页
  • 作者

    Ali Kaushar; Acharja Prodip; Trivedi D. K.; Kulkarni Rachna; Pithani Prakash; Safai P. D.; Chate D. M.; Ghude Sachin; Jenamani R. K.; Rajeevan M.;

  • 作者单位

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India|Savitribai Phule Pune Univ, Pune 411007, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India|Savitribai Phule Pune Univ, Pune 411007, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India|Andhra Univ, Visakhapatnam 530003, Andhra Pradesh, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India;

    Indian Inst Trop Meteorol, Dr Homi Bhabha Rd,NCL PO, Pune 411008, Maharashtra, India;

    Indian Meteorol Dept, New Delhi 110003, India;

    Minist Earth Sci, Lodhi Rd, New Delhi, India;

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  • 正文语种 eng
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  • 关键词

    WIFEX 2015-16; PM2.5; Chemical and carbonaceous composition; Source apportionment;

    机译：WIFEX 2015-16;PM2.5;化学和碳质成分;来源分配;

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