Oxidative potential of ambient PM2.5 in Wuhan and its comparisons with eight areas of China

Liu, Qingyang; Lu, Zhaojie; Ying, Xiong; Fan, Hongsong; Zhou, Jiabin; Schauer, James J.

doi:10.1016/j.scitotenv.2019.134844

Cited by 47 publications

(15 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We measured organic source tracers including alkanes, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(e) pyrene, benzo(ghi)perylene, picene, 17a(H)-22,29,30trisnorhopane, levoglucosan and cholesterol by GC-MS 5890-5972 on the basis of methods described in prior work [7,19,20]. Briefly, 0.635 cm 2 of the quartz filter was extracted using the mixtures of dichloromethane and methanol for three times at the room temperature.…”

Section: Chemical Compositionsmentioning

confidence: 99%

Assessment of source contributions to organic carbon in ambient fine particle using receptor model with inorganic and organic source tracers at an urban site of Beijing

Liu

Gong

2020

SN Appl. Sci.

Self Cite

View full text Add to dashboard Cite

The collections of ambient fine particles were carried out in the period of January 16 to 31, 2013, in Beijing. The levels of carbonaceous aerosols (i.e., organic carbon and elemental carbon) in fine particles were determined. The chemical compositions of primary source tracers including alkanes, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(e)pyrene, benzo(ghi)perylene, picene, 17a(H)-22,29,30-trisnorhopane, levoglucosan, Al and Fe in fine particles were analyzed. Chemical mass balance (CMB) model coupled with inorganic and organic source tracers was utilized to estimate daily contributions of primary sources (e.g., coal combustion, biomass burning, dust source, mobile source) to organic carbon (OC). The sensitivity analysis of specific primary source was carried out in order to obtain the accurate contribution from primary sources. Our study indicated that CMB with inorganic and organic source tracer method was efficient for apportioning primary sources of OC in Beijing during high air pollution episodes.

show abstract

Section: Chemical Compositionsmentioning

confidence: 99%

Assessment of source contributions to organic carbon in ambient fine particle using receptor model with inorganic and organic source tracers at an urban site of Beijing

Liu

Gong

2020

SN Appl. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…[5][6][7] Though ambient PM is a complex of chemical components including OC, EC, metals and water soluble ions that emit from diverse sources, [8][9][10] adverse health effects resulted from PM were found to be highly associated with certain chemical components rather than total mass. 11,12 Several in vivo biological studies have shown certain chemical components including PAHs and metals from various sources could cause the increased levels of pro-inammatory cytokines in circulating blood. 5,13 Recently, some in vitro studies showed that PM may inhibit cell proliferation by cell cycle arrest.…”

Section: Introductionmentioning

confidence: 99%

Cell cycle arrest of human bronchial epithelial cells modulated by differences in chemical components of particulate matter

Yang

Liu

et al. 2021

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Almost everything used today, such as housing, transport, energy production, food and water supply, is either made of steel or manufactured by steel equipment [2]. Although its production increasingly improves our daily life, its negative impact on the environment cannot be ignored [3][4][5]. According to the World Health Organization [6], iron and steel manufacturing is a significant contributor to air pollution, especially in developing countries which have an increasing demand for steel in the domains of industrialisation and modernisation [7,8].…”

Section: Introductionmentioning

confidence: 99%

Contamination identification, source apportionment and health risk assessment of trace elements at different fractions of atmospheric particles at iron and steelmaking areas in China

et al. 2020

View full text Add to dashboard Cite

China has the largest share of global iron and steel production, which is considered to play a significant contribution to air pollution. This study aims to investigate trace element contamination at different fractions of particulate matter (PM) at industrial areas in China. Three PM fractions, PM 2.1-9.0 , PM 1.1-2.1 and PM 1.1 , were collected from areas surrounding iron and steelmaking plants at Kunming, Wuhan, Nanjing and Ningbo in China. Multiple trace elements and their bioavailability, as well as Pb isotopic compositions, were analysed for identification of contaminants, health risk assessment and source apportionment. Results showed that PM particles in the sites near industrial areas were associated with a range of toxic trace elements, specifically As, Cr(VI), Cd and Mn, and posed significant health risks to humans. The isotopic Pb compositions identified that coal and high temperature metallurgical processes in the steelmaking process were the dominant contributors to local air pollution in these sites. In addition to iron and steelmaking activities, traffic emissions and remote pollution also played a contributing role in PM contamination, confirmed by the differences of Pb isotopic compositions at each PM fraction and statistical results from Preference Ranking Organization Method for Enrichment Evaluations (PROMETHEE) and Geometrical Analysis for Interactive Aid (GAIA). The results presented in this study provide a comprehensive understanding of PM emissions at iron and steelmaking areas, which helps to guide subsequent updates of air pollution control guidelines to efficiently minimise environmental footprint and ensure long term sustainability of the industries.

show abstract

Oxidative potential of ambient PM2.5 in Wuhan and its comparisons with eight areas of China

Cited by 47 publications

References 41 publications

Assessment of source contributions to organic carbon in ambient fine particle using receptor model with inorganic and organic source tracers at an urban site of Beijing

Assessment of source contributions to organic carbon in ambient fine particle using receptor model with inorganic and organic source tracers at an urban site of Beijing

Cell cycle arrest of human bronchial epithelial cells modulated by differences in chemical components of particulate matter

Contamination identification, source apportionment and health risk assessment of trace elements at different fractions of atmospheric particles at iron and steelmaking areas in China

Contact Info

Product

Resources

About