Particulate pollution in urban Chongqing of southwest China: Historical trends of variation, chemical characteristics and source apportionment

2017 ◽  
Vol 584-585 ◽  
pp. 523-534 ◽  
Author(s):  
Yuan Chen ◽  
Shao-dong Xie ◽  
Bin Luo ◽  
Chong-zhi Zhai
Keyword(s):  
Source Apportionment ◽  
Southwest China ◽  
Chemical Characteristics ◽  
Historical Trends ◽  
Particulate Pollution

Seasonal variation and source apportionment of PAHs in TSP in the atmosphere of Guiyang, Southwest China

2012 ◽  
Vol 118 ◽  
pp. 271-279 ◽  
Author(s):  
J. Hu ◽  
C.Q. Liu ◽  
G.P. Zhang ◽  
Y.L. Zhang
Keyword(s):  
Seasonal Variation ◽  
Source Apportionment ◽  
Southwest China

Chemical characteristics of rainwater in karst rural areas, Guizhou Province, Southwest China

2017 ◽  
Vol 36 (3) ◽  
pp. 572-576 ◽  
Author(s):  
Pin Lü ◽  
Guilin Han ◽  
Qixin Wu
Keyword(s):  
Rural Areas ◽  
Southwest China ◽  
Guizhou Province ◽  
Chemical Characteristics

Chemical characteristics and source apportionment of PM2.5 during the harvest season in eastern China's agricultural regions

2014 ◽  
Vol 92 ◽  
pp. 442-448 ◽  
Author(s):  
Jianfeng Li ◽  
Yu Song ◽  
Yi Mao ◽  
Zhichun Mao ◽  
Yusheng Wu ◽  
...  
Keyword(s):  
Source Apportionment ◽  
Chemical Characteristics ◽  
Agricultural Regions

scholarly journals Wintertime aerosol chemical composition and source apportionment of the organic fraction in the metropolitan area of Paris

2013 ◽  
Vol 13 (2) ◽  
pp. 961-981 ◽  
Author(s):  
M. Crippa ◽  
P. F. DeCarlo ◽  
J. G. Slowik ◽  
C. Mohr ◽  
M. F. Heringa ◽  
...  
Keyword(s):  
Black Carbon ◽  
Source Apportionment ◽  
Metropolitan Area ◽  
Organic Fraction ◽  
Organic Mass ◽  
Aerosol Composition ◽  
Mass Spectrometers ◽  
Particulate Pollution ◽  
Aerosol Mass ◽  
Wood Burning

Abstract. The effect of a post-industrial megacity on local and regional air quality was assessed via a month-long field measurement campaign in the Paris metropolitan area during winter 2010. Here we present source apportionment results from three aerosol mass spectrometers and two aethalometers deployed at three measurement stations within the Paris region. Submicron aerosol composition is dominated by the organic fraction (30–36%) and nitrate (28–29%), with lower contributions from sulfate (14–16%), ammonium (12–14%) and black carbon (7–13%). Organic source apportionment was performed using positive matrix factorization, resulting in a set of organic factors corresponding both to primary emission sources and secondary production. The dominant primary sources are traffic (11–15% of organic mass), biomass burning (13–15%) and cooking (up to 35% during meal hours). Secondary organic aerosol contributes more than 50% to the total organic mass and includes a highly oxidized factor from indeterminate and/or diverse sources and a less oxidized factor related to wood burning emissions. Black carbon was apportioned to traffic and wood burning sources using a model based on wavelength-dependent light absorption of these two combustion sources. The time series of organic and black carbon factors from related sources were strongly correlated. The similarities in aerosol composition, total mass and temporal variation between the three sites suggest that particulate pollution in Paris is dominated by regional factors, and that the emissions from Paris itself have a relatively low impact on its surroundings.

Receptor model-based source apportionment of particulate pollution in Hyderabad, India

2012 ◽  
Vol 185 (7) ◽  
pp. 5585-5593 ◽  
Author(s):  
Sarath K. Guttikunda ◽  
Ramani V. Kopakka ◽  
Prasad Dasari ◽  
Alan W. Gertler
Keyword(s):  
Source Apportionment ◽  
Receptor Model ◽  
Particulate Pollution ◽  
Model Based

Chemical characteristics, deposition fluxes and source apportionment of precipitation components in the Jiaozhou Bay, North China

2017 ◽  
Vol 190 ◽  
pp. 10-20 ◽  
Author(s):  
Jianwei Xing ◽  
Jinming Song ◽  
Huamao Yuan ◽  
Xuegang Li ◽  
Ning Li ◽  
...  
Keyword(s):  
Source Apportionment ◽  
North China ◽  
Jiaozhou Bay ◽  
Chemical Characteristics ◽  
Deposition Fluxes

Characteristics and source apportionment of PM 2.5 during persistent extreme haze events in Chengdu, southwest China

2017 ◽  
Vol 230 ◽  
pp. 718-729 ◽  
Author(s):  
Lulu Li ◽  
Qinwen Tan ◽  
Yuanhang Zhang ◽  
Miao Feng ◽  
Yu Qu ◽  
...  
Keyword(s):  
Source Apportionment ◽  
Southwest China ◽  
Pm 2.5

scholarly journals BAERLIN2014 – stationary measurements and source apportionment at an urban background station in Berlin, Germany

2018 ◽  
Vol 18 (12) ◽  
pp. 8621-8645 ◽  
Author(s):  
Erika von Schneidemesser ◽  
Boris Bonn ◽  
Tim M. Butler ◽  
Christian Ehlers ◽  
Holger Gerwig ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Source Apportionment ◽  
Urban Areas ◽  
Substantial Contribution ◽  
Small Contribution ◽  
Source Attribution ◽  
Urban Background ◽  
Ecosystem Research ◽  
Particulate Pollution ◽  
Secondary Aerosols

Abstract. The “Berlin Air quality and Ecosystem Research: Local and long-range Impact of anthropogenic and Natural hydrocarbons” (BAERLIN2014) campaign was conducted during the 3 summer months (June–August) of 2014. During this measurement campaign, both stationary and mobile measurements were undertaken to address complementary aims. This paper provides an overview of the stationary measurements and results that were focused on characterization of gaseous and particulate pollution, including source attribution, in the Berlin–Potsdam area, and quantification of the role of natural sources in determining levels of ozone and related gaseous pollutants. Results show that biogenic contributions to ozone and particulate matter are substantial. One indicator for ozone formation, the OH reactivity, showed a 31 % (0.82 ± 0.44 s−1) and 75 % (3.7 ± 0.90 s−1) contribution from biogenic non-methane volatile organic compounds (NMVOCs) for urban background (2.6 ± 0.68 s−1) and urban park (4.9 ± 1.0 s−1) location, respectively, emphasizing the importance of such locations as sources of biogenic NMVOCs in urban areas. A comparison to NMVOC measurements made in Berlin approximately 20 years earlier generally show lower levels today for anthropogenic NMVOCs. A substantial contribution of secondary organic and inorganic aerosol to PM10 concentrations was quantified. In addition to secondary aerosols, source apportionment analysis of the organic carbon fraction identified the contribution of biogenic (plant-based) particulate matter, as well as primary contributions from vehicles, with a larger contribution from diesel compared to gasoline vehicles, as well as a relatively small contribution from wood burning, linked to measured levoglucosan.

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