西南典型高原山地城市大气黑碳气溶胶污染特征及来源解析
Characteristics and Source Apportionment of Black Carbon in the Atmosphere of Typical Plateau City in Southwest China
查看参考文献29篇
文摘
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利用大气细颗粒物采样仪器(青岛崂应2050型)和黑碳仪(SootScanTM Model OT21),于2016年5月至2017年4月对贵阳市城区大气黑碳进行了连续采样和监测。结果表明,大气黑炭的浓度为1.17 ~ 12.77 μg /m~3,平均值为5.19±1.91 μg / m~3,季节变化特征呈现为冬季>秋季>春季≈夏季。大气黑碳气溶胶含量与大气细粒颗粒物PM_(2.5)质量浓度及钾离子含量呈显著正相关性,相关系数分别为R~2 = 0.64(P<0.01)和R~2 = 0.31(P<0.01) 。源解析结果显示,化石燃料(51.9%) 、生物质燃烧(32.4%)和餐饮油烟排放(15.7%)是大气黑碳气溶胶的主要来源。后向轨迹模型HYSPLIT显示,贵阳市全年大气污染气团主要来自我国境内,污染气团的来源与贵阳市大气主导风向有关。 |
其他语种文摘
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Atmospheric fine particle in Guiyang City was collected with Laoying Model 2050 during May 2016 to April 2017 and measured for black carbon ( BC) using Aethalometer ( SootScanTM Model OT21). Results showed that concentrations of BC ranged from 1.17 to 12.77 μg /m~3,with an average of 5.19±1.91 μg /m~3. Seasonal variation of BC was in the order of winter > autumn > spring ≈ summer. Significantly positive correlations between BC and PM_(2.5) ( R~2 = 0.64,P < 0.01) as well as between potassium ion ( R~2 = 0.31,P < 0.01) were observed. Sources apportionment suggested BC originated from fossil fuels ( 51.9%),biomass burning dust ( 32.4%),and catering fume emissions ( 15.7%). Cluster analyses on back-trajectories illustrated that the impacted air mass mainly came from domestic regions,and was controlled by dominant wind directions in Guiyang. |
来源
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地球与环境
,2021,49(4):375-380 【核心库】
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DOI
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10.14050/j.cnki.1672-9250.2021.49.028
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关键词
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黑碳
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季节变化
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影响因素
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来源解析
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地址
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1.
潍坊市勘察测绘研究院, 山东, 潍坊, 261041
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
3.
贵州师范大学化学与材料科学学院, 贵阳, 550001
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贵州理工学院资源与环境工程学院, 贵阳, 550003
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贵阳市大气细粒子和大气污染化学重点实验室, 贵阳市大气细粒子和大气污染化学重点实验室, 贵阳, 550001
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1672-9250 |
学科
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环境污染及其防治 |
基金
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国家自然科学基金
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贵州省项目
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贵州省项目
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贵州省项目
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文献收藏号
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CSCD:7031583
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