Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope

Han, Xiaokun; Guo, Qianqian; Liu, Cong‐Qiang; Strauß, Harald; Yang, Junxing; Hu, Jian; Wei, Rongfei; Tian, Liyan; Kong, Jing; Peters, Marc

doi:10.1016/j.envpol.2016.06.038

Cited by 41 publications

(14 citation statements)

References 53 publications

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“…This finding was similar to most northern cities in China that have the highest value in winter possibly due to central heating [27] [28]. Monthly changes in water-soluble ions in three sampling sites were the same as PM 2.5 .…”

Section: The Monthly Change Of Water-soluble Ionssupporting

confidence: 82%

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Chen

Ning

et al. 2020

SN Appl. Sci.

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A low-vol sampler was used to collect PM 2.5 samples for half-year in three sampling sites, including industrial park (A1), school (A2), factory (A3) in Shihezi, China. The result showed that the high levels of Na + and K + were likely originate from burning Zhundong coal. In general, the atmospheric aerosol of A1, A2 and A3 was alkaline. Most of the OC (organic carbon)/EC (element carbon) values were greater than 2.2, which indicated that there was significant secondary pollution. In the carbon component analysis, the values of OC1, EC2 and EC3 were significantly lower than OC2, OC3, OC4 and EC1. In addition, OC2 accounts for the largest proportion of OC. Combined with the source analysis of water-soluble ions, carbon component and HYSPLIT Trajectory Model, the main sources of Shihezi were local coal-fired emissions, road dust and car exhaust, and pollutants transmitted from western cities. This study provides a basis for investigating the pollution sources of PM 2.5 and the influence of Zhundong coal combustion in Shihezi in the future.

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Section: The Monthly Change Of Water-soluble Ionssupporting

confidence: 82%

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Chen

Ning

et al. 2020

SN Appl. Sci.

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“…On average, the mass concentration of PM2.5 during the NCCPC control period is 57.9 ± 9.8 µg m -3 , which is decreased by 31.2% compared with the non-control period (84.1 ± 38.8 µg m -3 ). Compared with the previous important events that implemented pollution control measures in Beijing and its surrounding areas, the reduction ratio of PM2.5 in the present study falls within the low limit reducing range of 30 -50% for the Olympic Games (Wang et al, 2009;Li et al, 2013), but is lower than the range of 40 -60% for the APEC period (Tang et al, 2015;Tao et al, 2016; and the range of 60 -70% for the VDP period (Han et al, 2016;Liang et al, 2017;Lin et al, 2017).…”

Section: Drf Calculationcontrasting

confidence: 71%

Impacts of short-term mitigation measures on PM2.5 and radiative effects: a case study from a regional background site near Beijing, China

Wang¹,

Liu²,

Li³

et al. 2018

Preprint

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Abstract. An intensive measurement campaign was conducted in a regional background site near Beijing during the 19th National Congress of the Communist Party of China (NCCPC) to investigate the effectiveness of short-term mitigation measures on PM2.5 and aerosol direct radiative forcing (DRF). Average mass concentration of PM2.5 and its major chemical composition are decreased by 20.6&#8211;43.1&#8201;% during the NCCPC control period compared with the non-control period. When considering days with the stable meteorological conditions, larger reduction of PM2.5 is found compared with that for all days. Further, a positive matrix factorization receptor model shows that the mass concentrations of PM2.5 from traffic-related emissions, biomass burning, industry processes, and mineral dust are reduced by 38.5&#8211;77.8&#8201;% during the NCCPC control period compared with the non-control period. However, there is no significant difference in PM2.5 from coal burning between these two periods, and an increasing trend of PM2.5 mass from secondary inorganic aerosol is found during the NCCPC control period. Two pollution episodes were occurred subsequently after the NCCPC control period. One is dominated by secondary inorganic aerosol, and the WRF-Chem model shows that the Beijing-Tianjin-Hebei (BTH) region contributes 73.6&#8201;% of PM2.5 mass; the other is mainly caused by biomass burning, and the BTH region contributes 46.9&#8201;% of PM2.5 mass. Calculations based on a revised IMPROVE method show that organic matter (OM) is the largest contributor to the light extinction coefficient (bext<\\sub>) during the non-control period while NH4NO3 is the dominant contributor during the NCCPC control period. The Tropospheric Ultraviolet and Visible radiation model reveals that the average DRF values at the Earth's surface are &#8722;14.0 and &#8722;19.3&#8201;W&#8201;m-2 during the NCCPC control and non-control periods, respectively, and the reduction ratios of DRF due to the decrease in PM2.5 components vary from 22.7&#8211;46.7&#8201;% during the NCCPC control period. Our study would further provide valuable information and dataset to help controlling the air pollution and alleviating the cooling effects of aerosols at the surface in Beijing.

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“…4a). Of these elements, As is a well-known tracer for coal burning (Hsu et al, 2009;; Pb, Fe, Mn, and Zn (Xu et al, 2012;Men et al, 2018) are enriched in particles generated by this source; and Ca and Si can be components of coal fly ash (Pipal et al, 2011). There was no significant difference in PM 2.5 loadings contributed by this source between the NCCPC-control (8.5 µg m −3 ) and non-control (7.8 µg m −3 ) periods.…”

Section: Estimates Of Source Contributionsmentioning

confidence: 99%

Impacts of short-term mitigation measures on PM2.5 and radiative effects: a case study at a regional background site near Beijing, China

Wang

Liu

et al. 2019

Atmos. Chem. Phys.

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Measurements at a background site near Beijing showed that pollution controls implemented during the 19th National Congress of the Communist Party of China (NC-CPC) were effective in reducing PM 2.5 . Mass concentrations of PM 2.5 and its major chemical components were 20.6 %-43.1 % lower during the NCCPC-control period compared with a non-control period, and differences were greater on days with stable meteorological conditions. A receptor model showed that PM 2.5 from traffic-related emissions, biomass burning, industrial processes, and mineral dust was 38.5 %-77.8 % lower during the NCCPC-control versus noncontrol period, but differences in PM 2.5 from coal burning were small, and secondary sources were higher during the NCCPC-control period. During one pollution episode in the non-control period, secondary sources dominated, and the WRF-Chem model showed that the Beijing-Tianjin-Hebei (BTH) region contributed 73.6 % of PM 2.5 mass. A second pollution episode was linked to biomass burning, and BTH contributed 46.9 % of PM 2.5 mass. Calculations based on Interagency Monitoring of Protected Visual Environments (IMPROVE) algorithms showed that organic matter was the largest contributor to light extinction during the non-control period whereas NH 4 NO 3 was the main contributor during the NCCPC. The Tropospheric Ultraviolet and Visible radiation model showed that the average direct radiative forcing (DRF) values at the Earth's surface were −14.0 and −19.3 W m −2 during the NCCPC-control and non-control periods, respectively, and the DRF for the individual PM 2.5 components were 22.7 %-46.7 % lower during the NCCPC. The information and dataset from this study will be useful for developing air pollution control strategies in the BTH region and for understanding associated aerosol radiative effects.

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Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope

Cited by 41 publications

References 53 publications

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Impacts of short-term mitigation measures on PM<sub>2.5</sub> and radiative effects: a case study from a regional background site near Beijing, China

Impacts of short-term mitigation measures on PM<sub>2.5</sub> and radiative effects: a case study at a regional background site near Beijing, China

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Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope

Cited by 41 publications

References 53 publications

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Characteristics and sources analysis of PM2.5 in a major industrial city of northern Xinjiang, China

Impacts of short-term mitigation measures on PM&lt;sub&gt;2.5&lt;/sub&gt; and radiative effects: a case study from a regional background site near Beijing, China

Impacts of short-term mitigation measures on PM&lt;sub&gt;2.5&lt;/sub&gt; and radiative effects: a case study at a regional background site near Beijing, China

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Impacts of short-term mitigation measures on PM<sub>2.5</sub> and radiative effects: a case study from a regional background site near Beijing, China

Impacts of short-term mitigation measures on PM<sub>2.5</sub> and radiative effects: a case study at a regional background site near Beijing, China