Individual metal-bearing particles in a regional haze caused by firecracker and firework emissions

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Individual metal-bearing particles in a regional haze caused by firecracker and firework emissions. / Li, Weijun; Shi, Zongbo; Yan, Chao; Yang, Lingxiao; Dong, Can; Wang, Wenxing.

In: Science of the Total Environment, Vol. 443, 05.01.2013, p. 464-469.

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Li, Weijun ; Shi, Zongbo ; Yan, Chao ; Yang, Lingxiao ; Dong, Can ; Wang, Wenxing. / Individual metal-bearing particles in a regional haze caused by firecracker and firework emissions. In: Science of the Total Environment. 2013 ; Vol. 443. pp. 464-469.

Bibtex

@article{71e2d9aad1924600a4ebe6e290e37a99,
title = "Individual metal-bearing particles in a regional haze caused by firecracker and firework emissions",
abstract = "Intensive firecracker/firework displays during Chinese New Year (CNY) release fine particles and gaseous pollutants into the atmosphere, which may lead to serious air pollution. We monitored ambient PM2.5 and black carbon (BC) concentrations at a regional background site in the Yellow River Delta region during the CNY in 2011. Our monitoring data and MOUDI images showed that there was a haze event during the CNY. Daily average PM2.5 concentration reached 183μgm-3 during the CNY, which was six times higher than that before and after the CNY. Similarly, the black carbon (BC) concentrations were elevated during the CNY. In order to confirm whether the firecracker/firework related emission is the main source of the haze particles, we further analyzed the morphology and chemical composition of individual airborne particles collected before, during and after the CNY by using transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy (TEM/EDS). We found that sulfate and organic-rich particles were dominant in the atmosphere before and after the CNY. In contrast, K-rich sulfates and other metal (e.g., Ba-rich, Al-rich, Mg-rich, and Fe-rich) particles were much more abundant than ammoniated sulfate particles during the CNY. These data suggest that it was the aerosol particles from the firecracker/firework emissions that induced the regional haze episode during the CNY. In individual organic and K-rich particles, we often found more than two types of nano-metal particles. These metal-bearing particles also contained abundant S but not Cl. In contrast, fresh metal-bearing particles from firecrackers generated in the laboratory contained abundant Cl with minor amounts of S. This indicates that the firecracker/firework emissions during the CNY significantly changed the atmospheric transformation pathway of SO2 to sulfate.",
keywords = "Chinese New Year, Fireworks, Individual haze particle, Metal particle, Mixing state",
author = "Weijun Li and Zongbo Shi and Chao Yan and Lingxiao Yang and Can Dong and Wenxing Wang",
year = "2013",
month = jan,
day = "5",
doi = "10.1016/j.scitotenv.2012.10.109",
language = "English",
volume = "443",
pages = "464--469",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Individual metal-bearing particles in a regional haze caused by firecracker and firework emissions

AU - Li, Weijun

AU - Shi, Zongbo

AU - Yan, Chao

AU - Yang, Lingxiao

AU - Dong, Can

AU - Wang, Wenxing

PY - 2013/1/5

Y1 - 2013/1/5

N2 - Intensive firecracker/firework displays during Chinese New Year (CNY) release fine particles and gaseous pollutants into the atmosphere, which may lead to serious air pollution. We monitored ambient PM2.5 and black carbon (BC) concentrations at a regional background site in the Yellow River Delta region during the CNY in 2011. Our monitoring data and MOUDI images showed that there was a haze event during the CNY. Daily average PM2.5 concentration reached 183μgm-3 during the CNY, which was six times higher than that before and after the CNY. Similarly, the black carbon (BC) concentrations were elevated during the CNY. In order to confirm whether the firecracker/firework related emission is the main source of the haze particles, we further analyzed the morphology and chemical composition of individual airborne particles collected before, during and after the CNY by using transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy (TEM/EDS). We found that sulfate and organic-rich particles were dominant in the atmosphere before and after the CNY. In contrast, K-rich sulfates and other metal (e.g., Ba-rich, Al-rich, Mg-rich, and Fe-rich) particles were much more abundant than ammoniated sulfate particles during the CNY. These data suggest that it was the aerosol particles from the firecracker/firework emissions that induced the regional haze episode during the CNY. In individual organic and K-rich particles, we often found more than two types of nano-metal particles. These metal-bearing particles also contained abundant S but not Cl. In contrast, fresh metal-bearing particles from firecrackers generated in the laboratory contained abundant Cl with minor amounts of S. This indicates that the firecracker/firework emissions during the CNY significantly changed the atmospheric transformation pathway of SO2 to sulfate.

AB - Intensive firecracker/firework displays during Chinese New Year (CNY) release fine particles and gaseous pollutants into the atmosphere, which may lead to serious air pollution. We monitored ambient PM2.5 and black carbon (BC) concentrations at a regional background site in the Yellow River Delta region during the CNY in 2011. Our monitoring data and MOUDI images showed that there was a haze event during the CNY. Daily average PM2.5 concentration reached 183μgm-3 during the CNY, which was six times higher than that before and after the CNY. Similarly, the black carbon (BC) concentrations were elevated during the CNY. In order to confirm whether the firecracker/firework related emission is the main source of the haze particles, we further analyzed the morphology and chemical composition of individual airborne particles collected before, during and after the CNY by using transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy (TEM/EDS). We found that sulfate and organic-rich particles were dominant in the atmosphere before and after the CNY. In contrast, K-rich sulfates and other metal (e.g., Ba-rich, Al-rich, Mg-rich, and Fe-rich) particles were much more abundant than ammoniated sulfate particles during the CNY. These data suggest that it was the aerosol particles from the firecracker/firework emissions that induced the regional haze episode during the CNY. In individual organic and K-rich particles, we often found more than two types of nano-metal particles. These metal-bearing particles also contained abundant S but not Cl. In contrast, fresh metal-bearing particles from firecrackers generated in the laboratory contained abundant Cl with minor amounts of S. This indicates that the firecracker/firework emissions during the CNY significantly changed the atmospheric transformation pathway of SO2 to sulfate.

KW - Chinese New Year

KW - Fireworks

KW - Individual haze particle

KW - Metal particle

KW - Mixing state

UR - http://www.scopus.com/inward/record.url?scp=84870223878&partnerID=8YFLogxK

U2 - 10.1016/j.scitotenv.2012.10.109

DO - 10.1016/j.scitotenv.2012.10.109

M3 - Article

C2 - 23208278

AN - SCOPUS:84870223878

VL - 443

SP - 464

EP - 469

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -