Size distributions and sources of elements in particulate matter at curbside, urban and rural sites in Beijing

Duan, Jiali; Tan, Jianwei; Wang, Shulan; Hao, J.; Chai, Fahe

doi:10.1016/s1001-0742(11)60731-6

Cited by 143 publications

(77 citation statements)

References 26 publications

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“…Zn, Cu, V and Mn are derived from both natural and anthropogenic sources and have a multi-modal size distribution (coarse and accumulation modes). For the coarse mode, these elements may be derived from crustal soils; however, for the accumulation mode, they may be derived from fossil fuel combustion and vehicle emissions (Duan et al, 2012). In this study, Zn and Cu were significantly higher and their annual trend similar to that of elements from anthropogenic sources; however, in contrast, the variation of V and Mn was similar to that of natural elements.…”

Section: Temporal Trend Of Inorganic Elementsmentioning

confidence: 53%

“…Twelve elements were selected and they can generally be classified into three groups (Duan et al, 2012): natural (Ti, Ba and Fe), anthropogenic (Pb, As, Bi, Tl and Cd) and natural + anthropogenic (Zn, Cu, V and Mn).…”

Section: Temporal Trend Of Inorganic Elementsmentioning

confidence: 99%

“…Among them, Ca and Ba are good indicators of dust from crustal sources (Duan et al, 2012); K + is a marker of biomass burning (Duan et al, 2004); As, Pb and Zn are mainly derived from coal burning and the ceramic industry (Duzgoren-Aydin, 2007;Tian et al, 2010;Peng et al, 2007;Minguillón et al, 2009); and NH 4 + , SO 4 2 − and NO 3 − are indicators of secondary aerosol, Tan et al (2009aTan et al ( , 2009b reporting that these species were significantly higher during haze periods. Five factors (industry, vehicles, dust, secondary aerosol and biomass burning) are identified by PMF5.0, and factor profiles (% of species total) are illustrated as Fig.…”

Section: Source Apportionmentmentioning

confidence: 99%

See 2 more Smart Citations

Long-term trends of chemical characteristics and sources of fine particle in Foshan City, Pearl River Delta: 2008–2014

Tan

Duan

et al. 2016

Science of The Total Environment

Self Cite

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Section: Temporal Trend Of Inorganic Elementsmentioning

confidence: 53%

Section: Temporal Trend Of Inorganic Elementsmentioning

confidence: 99%

Section: Source Apportionmentmentioning

confidence: 99%

See 1 more Smart Citation

Long-term trends of chemical characteristics and sources of fine particle in Foshan City, Pearl River Delta: 2008–2014

Tan

Duan

et al. 2016

Science of The Total Environment

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“…작용 때문에 오래전부터 많은 관심을 가져왔다 (Sun et al, 2014;Tian et al, 2014;Park et al, 2013a;Zhang et al, 2013;Duan et al, 2012;Tan et al, 2009;Kang et al, 2004 (Park et al, 2013a;Won et al, 2010;Park et al, 2005), SO 4 2-입자는 주로 광역적 오염원의 장거리 이동 중 SO 2 의 대기변환과정을 통하여 생성되 며 여름에 발생하는 PM 2.5 의 고농도 현상의 원인물질 이 된다 (Won et al, 2010). 관련이 있다고 하였다 (Zhang et al, 2013;Duan et al, 2012;Okuda et al, 2004).…”

Section: 연무 오염은 인간의 건강 시정 지구 기후에 대한 부unclassified

“…관련이 있다고 하였다 (Zhang et al, 2013;Duan et al, 2012;Okuda et al, 2004). 따라서 국내에서 대기 중의 (Park et al, 2013a;Park and Cho, 2011 Yu et al, 2015).…”

Section: 연무 오염은 인간의 건강 시정 지구 기후에 대한 부unclassified

Investigation of PM<sub>2.5</sub> Pollution Episodes in Gwangju

Yu¹,

Cho²,

Bae³

et al. 2015

Journal of Korean Society for Atmospheric Environment

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Abstract24-hr integrated PM 2.5 measurements were performed between December 2013 and October 2014 at an urban site in Gwangju and the collected samples were analyzed for organic carbon (OC), elemental carbon (EC), ionic species, and elemental species. Objectives of this study were to identify PM 2.5 pollution episodes, to characterize their chemical components, and to examine their probable origins. Over the course of the study period, average PM 2.5 concentration was 37.7±23.6 (6.0~121.5) μg/m 3 . Concentrations of secondary ionic species; NH 4 + , NO 3 -, and SO 4 2-was on average 5.54 μg/m 3 (0.28~20.86), 7.60 μg/m 3 (0.45~33.53), and 9.05 μg/m 3 (0.50~34.98), accounting for 13.7% (4.6~22.7), 18.6% (2.9~44.8), and 22.9% (4.9~55.1) of the PM 2.5 concentration, respectively. Average OC and EC concentrations were 5.22 μgC/m 3 and 1.54 μgC/m 3 , taking possession of 4.6 and 22.2% (as organic mass) of the PM 2.5 , respectively. Frequencies at which 24-hr averaged PM 2.5 exceeded a 24-hr averaged Korean PM 2.5 standard of 50 μg/m 3 (termed as an "episode" in this study) were 30, accounting for 21.3% of total 141 measurements. These pollution episodes were mostly associated with haze phenomenon and weak surface wind speed. It is suggested that secondary formation of aerosol was one important formation mechanism of the episodes. The episodes were associated with enhancements of organic mass, NO 3 -and SO 4 2-in winter, of NO 3 -and SO 4 2-in spring, and of SO 4 2-in summer. Potential source contribution function results indicate also that PM 2.5 episodes were likely attributed to local and regional haze pollution transported from northeastern China in winter, to atmospheric processing of local emissions rather than long-range transport of air pollutants in spring, and to the SO 4 2-driven by photochemistry of SO 2 in summer.

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Spatial and Temporal Distributions of Air Pollutants and Size Distribution of Aerosols over Central and Eastern China

Wang

Zhu

Kang

et al. 2017

Arch Environ Contam Toxicol

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The origins and spatial and temporal distributions of air pollutants (PM, PM, CO, SO, NO and O) during May to June of 2015 were investigated using data from 1490 monitoring sites in China. Aerosol number concentrations and meteorological data from Shijiazhuang, Nanjing, and Suzhou were combined with the MIX Asian emission data and the HYSPLIT model. Furthermore, the diurnal variation, size distribution, and main sources of air pollutants and aerosols were selectively characterized in the North China Plain (NCP) and the Yangtze River Delta (YRD). High values of particulate matter concentrations (PM), including PM and PM, occurred in the northwestern and central regions of eastern China. Elevated PM and PM concentrations represented natural dust sources and anthropogenic resident, power plant, industry, and traffic emissions sources, respectively. The concentrated distributions of SO were similar to those of PM. The CO concentrations were distributed uniformly in China. High O values occurred above the Qinghai province. During the observation period, the air masses mainly originated from the northwest NCP and from the southwest or northeastern ocean in the YRD, resulting in high concentrations of PM, PM, SO, and CO in the NCP, the average values of which were 61.8 ± 40.0, 118.8 ± 66.4, 24.1 ± 24.6 μg m, and 1.2 ± 0.9 mg m, respectively, and were 1.2, 1.4, 1.5, and 1.3 times larger than those in the YRD. NO had higher concentrations in the YRD with an average of 43.7 ± 24.8 μg m, which was 1.2 times larger than that in the NCP. The diurnal variations of PM, NO and CO had bimodal distributions and SO and O had unimodal distributions in the NCP and YRD. The aerosol number concentrations had average values of 12,661 ± 5266, 11,189 ± 5905, and 12,797 ± 5931 cm in Shijiazhuang, Nanjing, and Suzhou. Their diurnal variations displayed trimodal peaks at 18:00-21:00, 11:00-14:00, and 06:00-08:00, and their spectra distributions were all unimodal with peaks at 60-70, 60-70, and 100-110 nm, respectively.

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Size distributions and sources of elements in particulate matter at curbside, urban and rural sites in Beijing

Cited by 143 publications

References 26 publications

Long-term trends of chemical characteristics and sources of fine particle in Foshan City, Pearl River Delta: 2008–2014

Long-term trends of chemical characteristics and sources of fine particle in Foshan City, Pearl River Delta: 2008–2014

Investigation of PM<sub>2.5</sub> Pollution Episodes in Gwangju

Spatial and Temporal Distributions of Air Pollutants and Size Distribution of Aerosols over Central and Eastern China

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