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| 1 | 保定市大气气溶胶中正构烷烃的污染水平及来源识别显示文摘有机物已成为我国城市大气颗粒物中最重要组成部分.为认知河北工业城市大气颗粒物中有机物浓度水平和来源,于2010年9月~2011年8月,利用安德森9级惯性撞击式颗粒物采样器在河北省保定市采集了大气颗粒物样品,采用有机溶剂萃取-气相色谱/质谱法定量分析了其中的正构烷烃.结果表明,采样期间保定市大气细粒子日均浓度67%超过GB 3095-2012二级标准75μg·m-3,约96%超过国家可吸入颗粒物浓度标准150μg·m-3.颗粒物中检测出C14~C32正构烷烃19种,浓度范围111.23~979.81 ng·m-3,日均浓度264.2 ng·m-3;4个季节的主峰碳各有不同,冬春季主峰碳为C20、C21和C22,夏季为C27;春、夏、秋、冬CPI值分别为0.97、1.24、0.92、0.86,平均值为1.01.冬春季正构烷烃主要受控于化石燃料燃烧和汽车尾气排放,夏秋季还同时受到高等植物角质蜡层的挥发影响,全年以人为源的影响为主. | 李杏茹 杜熙强 王英锋 王跃思 | 2013 | 环境科学2013，34，2： | 15 |
| 2 | 北京市典型城区PM_2.5中正构烷烃的污染特征与来源显示文摘2013年6月在北京及华北平原大城市空气污染联合观测期间,使用大流量PM2.5采样仪分昼、夜采集北京市典型城区环境空气中PM2.5样品,利用GC-MS技术对PM2.5中正构烷烃的污染水平、分布特征与来源进行分析,并且结合后向轨迹分析了远距离传输的影响.结果表明:观测期间ρ(PM2.5)为29.73~275.30μgm3,PM2.5中ρ(总正构烷烃)为50.33~143.49 ngm3.PM2.5中正构烷烃质量浓度随碳数分布呈单峰-后峰型和双峰-后高型2种;Cmax(主峰碳数)为C29或C31;CPI(碳优势指数)为1.34~6.66;LMWHMW〔ρ(C14~C24正构烷烃)ρ(C25~C36正构烷烃)〕为0.10~0.31.观测期间PM2.5中正构烷烃主要来自高等植物蜡,并且主要来自温带植物;其次来自化石燃料和生物质的不完全燃烧.观测期间来自北京市南向气团轨迹出现概率最高,影响最为突出,其次为来自东南沿海方向和内蒙古中西部方向的气团轨迹. | 李宏姣 李红 陆继龙 冯加良 于彦婷 夏芬美 任丽红 | 2015 | 环境科学研究2015，28，5： | 10 |
| 3 | 唐山市大气气溶胶中正构烷烃污染特征及来源分析显示文摘为了解唐山市大气气溶胶中有机物的污染现状,于2010年9月—2011年8月利用安德森8级撞击采样器在河北省唐山市采集了大气颗粒物样品,采用GC/MS法对细粒子(PM_(2.1))和粗粒子(PM_(>2.1))中的19种(C14—C32)正构烷烃进行了定量分析.结果表明,PM_(2.1)和PM_(>2.1)中正构烷烃年均浓度分别为632.6 ng·m^(-3)和445.6 ng·m^(-3),主要富集在细粒子中,质量浓度季节变化规律为冬>春>秋>夏;细粒子中,春、夏、秋、冬主峰碳(Cmax)分别为C29、C27、C21和C21;粗粒子中,春、夏、秋、冬Cmax分别为C31、C27、C22和C22,粗细粒子中碳优势指数(CPI)在1左右,说明唐山地区正构烷烃的污染主要受人为源影响很大.粗细粒子植物蜡贡献率分别为2.19%—57.62%和0.83%—49.87%,夏季植物蜡分布值最大,冬季最小,表明夏季植物源对正构烷烃的贡献相对较大,冬季正构烷烃的排放主要来源于人为活动(汽车尾气、化石燃料燃烧等),植物源贡献相对较少. | 程玲珑 李杏茹 徐小娟 王跃思 | 2016 | 环境化学2016，35，9： | 9 |
| 4 | 空气颗粒物致心肺损害的基础研究显示文摘中国工业化和城镇化的不协调发展对生态环境造成了巨大压力,并威胁着国民的健康。据报道,我国每年因室外空气污染所致的过早死亡人数约35~50万例[1],而颗粒物是我国城市大气首要污染物,其污染水平已远超全球平均水平。据WHO估计,全球每年有240万人的过早死归因于室内外空气颗粒物的暴露,其中65%的过早死亡者分布在中国以及其他颗粒物污染较重的亚洲国家和地区[2]。 | 袁晶 韩斌 陈仁杰 宋伦 张正东 张晓敏 徐东刚 王以美 于典科 杜江波 白志鹏 阚海东 彭双清 陈卫红 沈洪兵 邬堂春 | 2016 | 中华预防医学杂志2016，50，8： | 8 |
| 5 | 泰安市夏季PM2.5中正构烷烃和糖类化合物的化学组成及其来源显示文摘为探讨泰安市夏季PM2.5中正构烷烃和糖类的化学组成及其来源,于2016年7~8月进行PM2.5样品采集,对泰安市正构烷烃及糖类进行分析,并利用主成分分析-多元线性回归模型(PCA-MLR)和后向轨迹模型对污染物进行来源解析.结果表明, 2016年泰安市夏季PM2.5质量浓度为(37.2±11.5)μg·m^-3,是我国环境空气质量一级标准(GB 3095-2012,35μg·m^-3)的1.1倍.其中,正构烷烃质量浓度为(83.3±34.7)ng·m^-3,碳优势指数(CPI)为1.83,植物蜡烷烃贡献率(%WaxCn)为34.7%~69.4%,表明植物蜡是泰安市夏季正构烷烃的主要来源.糖类化合物的质量浓度为(73.4±46.6)ng·m^-3,其中左旋葡聚糖、半乳聚糖和甘露聚糖是主要的糖类组分,分别占糖类化合物总浓度的64.0%、 7.1%和6.3%,表征生物质燃烧对泰安市糖类具有重要贡献.由PCA-MLR模型结果表明,泰安市夏季PM2.5中正构烷烃和糖类化合物主要来自植物蜡、化石燃料燃烧和生物质燃烧.后向轨迹分析表明,泰安市夏季正构烷烃和糖类污染物主要来自山东本地源和南方内陆地区. | 衣雅男 侯战方 杨千才 刘晓迪 李政 孟静静 燕丽 魏本杰 伏梦璇 | 2020 | 环境科学2020，41，3： | 2 |
| 6 | Source apportionment of PAHs and n-alkanes bound to PM1 collected near the Venice highway显示文摘n-Alkanes and polycyclic aromatic hydrocarbons(PAHs) bound to atmospheric particulate matter(PM_1) were investigated in a traffic site located in an urban area of Venice Province(Eastern Po Valley, Italy) during the cold season. Considering the critical situation affecting the Veneto Region concerning the atmospheric pollution and the general lack of information on PM_1 composition and emission in this area, this experimental study aims at determining the source profile, their relative contributions and the dispersion of finer particles. Four sources were identified and quantified using the Positive Matrix Factorization receptor model:(1) mixed combustions related to the residential activities,(2)agricultural biomass burning in addition to the resuspension of anthropogenic and natural debris carried by the wind,(3)gasoline and (4)diesel traffic-related combustions. The role of local atmospheric circulation was also investigated to identify the pollutant sources. | Gabrio Valotto Giancarlo Rampazzo Francesco Gonella Gianni Formenton Silvia Ficotto Giorgia Giraldo | 2017 | Journal of Environmental Sciences2017，29，4： | 1 |
| 7 | PM_(2.5)characterization of primary and secondary organic aerosols in two urban-industrial areas in the East Mediterranean显示文摘Primary and secondary organic aerosols in PM_(2.5)were investigated over a one-year campaign at Zouk Mikael and Fiaa,Lebanon.The n-alkanes concentrations were quite similar at both sites(26-29 ng/m^(3))and mainly explained by anthropogenic emissions rather than natural ones.The concentrations of total Polycyclic Aromatic Hydrocarbons(PAHs)were nearly three times higher at Zouk Mikael(2.56 ng/m^(3))compared to Fiaa(0.95 ng/m^(3)),especially for indeno[1,2,3-c,d]pyrene linked to the presence of the power plant.A characteristic indeno[1,2,3-c,d]pyrene/(indeno[1,2,3-c,d]pyrene+benzo[g,h,i]perylene)ratio in the range0.8-1.0 was determined for heavy fuel oil combustion from the power plant.Fatty acids and hopanes were also investigated and were assigned to cooking activities and vehicular emissions respectively.Phthalates were identified for the first time in Lebanon with high concentrations at Zouk and Fiaa(106.88 and 97.68 ng/m^(3) respectively).Moreover,the biogenic secondary aerosols revealed higher concentrations in summer.The total terpene concentration varied between 131 ng/m^(3) at Zouk Mikael in winter to 469 ng/m3 at Fiaa in summer.Additionnally,the concentrations of the dicarboxylic acids especially for adipic and phthalic acids were more influenced by anthropogenic sources.The analysis of molecular markers and diagnostic ratios indicated that the sites were strongly affected by anthropogenic sources such as waste open burning,diesel private generators,cooking activities,road transport,power plant,and industrial emissions.Moreover,results showed different pattern during winter and summer seasons.Whereas,higher concentrations of biogenic markers were clearly encountered during the summer period. | Marc Fadel Frédéric Ledoux Mariana Farhat Adib Kfoury Dominique Courcot Charbel Afif | 2021 | Journal of Environmental Sciences2021，33，3： | 1 |
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