Underestimation of biomass burning contribution to PM2.5 due to its chemical degradation based on hourly measurements of organic tracers: A case study in the Yangtze River Delta (YRD) region, China

被引：8

作者：

Li, Qing ^{[1
,2
]}

Zhang, Kun ^{[1
,2
]}

Li, Rui ^{[1
,2
]}

Yang, Liumei ^{[1
,2
]}

Yi, Yanan ^{[1
,2
]}

Liu, Zhiqiang ^{[1
,2
,3
]}

Zhang, Xiaojuan ^{[1
,2
,3
]}

Feng, Jialiang ^{[1
,2
]}

Wang, Qiongqiong ^{[4
]}

Wang, Wu ^{[1
,2
]}

Huang, Ling ^{[1
,2
]}

Wang, Yangjun ^{[1
,2
]}

Wang, Shunyao ^{[1
,2
]}

Chen, Hui ^{[1
,2
]}

Chan, Andy ^{[5
]}

Latif, Mohd Talib ^{[6
]}

Ooi, Maggie Chel Gee ^{[7
]}

Manomaiphiboon, Kasemsan ^{[8
]}

Yu, Jianzhen ^{[4
,9
]}

Li, Li ^{[1
,2
]}

机构：

[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai, Peoples R China

[2] Shanghai Univ, Key Lab Organ Cpd Pollut Control Engn MOE, Shanghai, Peoples R China

[3] Jiangsu Changhuan Environm Technol Co Ltd, Changzhou, Jiangsu, Peoples R China

[4] Hong Kong Univ Sci & Technol, Dept Chem, Hong Kong, Peoples R China

[5] Univ Nottingham Malaysia, Dept Civil Engn, Semenyih, Selangor, Malaysia

[6] Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Earth Sci & Environm, Bangi, Selangor, Malaysia

[7] Univ Kebangsaan Malaysia, Inst Climate Change, Bangi, Selangor, Malaysia

[8] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok, Thailand

[9] Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2023年 / 872卷

基金：

中国国家自然科学基金;

关键词：

Biomass burning; Levoglucosan; Chemical degradation; Organic tracers; FINE PARTICULATE MATTER; WESTERN NORTH PACIFIC; CARBONACEOUS AEROSOLS; ATMOSPHERIC AEROSOLS; MOLECULAR MARKERS; SOURCE APPORTIONMENT; SEASONAL-VARIATIONS; OPTICAL-PROPERTIES; LEVOGLUCOSAN; COMBUSTION;

D O I：

10.1016/j.scitotenv.2023.162071

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biomass burning (BB) has significant impacts on air quality and climate change, especially during harvest seasons. In previous studies, levoglucosan was frequently used for the calculation of BB contribution to PM2.5, however, the deg-radation of levoglucosan (Lev) could lead to large uncertainties. To quantify the influence of the degradation of Lev on the contribution of BB to PM2.5, PM2.5-bound biomass burning-derived markers were measured in Changzhou from November 2020 to March 2021 using the thermal desorption aerosol gas chromatography-mass spectrometry (TAG-GC/MS) system. Temporal variations of three anhydro-sugar BB tracers (e.g., levoglucosan, mannosan (Man), and galactosan (Gal)) were obtained. During the sampling period, the degradation level of air mass (x) was 0.13, indicating that-87 % of levoglucosan had degraded before sampling in Changzhou. Without considering the degra-dation of levoglucosan in the atmosphere, the contribution of BB to OC were 7.8 %, 10.2 %, and 9.3 % in the clean period, BB period, and whole period, respectively, which were 2.4-2.6 times lower than those (20.8 %-25.9 %) con-sidered levoglucosan degradation. This illustrated that the relative contribution of BB to OC could be underestimated (-14.9 %) without considering degradation of levoglucosan. Compared to the traditional method (i.e., only using K+ as BB tracer), organic tracers (Lev, Man, Gal) were put into the Positive Matrix Factorization (PMF) model in this study. With the addition of BB organic tracers and replaced K+ with K+ BB (the water-soluble potassium produced by biomass burning), the overall contribution of BB to PM2.5 was enhanced by 3.2 % after accounting for levoglucosan degradation based on the PMF analysis. This study provides useful information to better understand the effect of biomass burning on the air quality in the Yangtze River Delta region.

引用

页数：12

共 27 条

[21] Uncertainty assessment of source attribution of PM2.5 and its water-soluble organic carbon content using different biomass burning tracers in positive matrix factorization analysis - a case study in Beijing, China
Tao, Jun
Zhang, Leiming
Zhang, Renjian
Wu, Yunfei
Zhang, Zhisheng
Zhang, Xiaoling
Tang, Yixi
Cao, Junji
Zhang, Yuanhang
SCIENCE OF THE TOTAL ENVIRONMENT, 2016, 543 : 326 - 335
[22] Quantification and evaluation of atmospheric pollutant emissions from open biomass burning with multiple methods: a case study for the Yangtze River Delta region, China
Yang, Yang
Zhao, Yu
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2019, 19 (01) : 327 - 348
[23] Moving towards synergistic reductions on PM2.5 and CO2 and its mechanism: A case study of Yangtze River Economic Belt, China
Gu, Binjie
Zhao, Haixia
Li, Xin
Zhang, Qianqian
JOURNAL OF GEOGRAPHICAL SCIENCES, 2024, 34 (08) : 1493 - 1512
[24] A multi-scale periodic study of PM2.5 concentration in the Yangtze River Delta of China based on Empirical Mode Decomposition-Wavelet Analysis
Wu, Xianhua
He, Shaoli
Guo, Ji
Sun, Weiheng
JOURNAL OF CLEANER PRODUCTION, 2021, 281
[25] Seasonal quantification of the inter-city transport of PM2.5 in the Yangtze River Delta region of China based on a source-oriented chemical transport model and the Michaelis-Menten equation
Gong K.
Xie X.
Ying Q.
Hu J.
Science of the Total Environment, 2024, 945
[26] High-Spatial-Resolution Population Exposure to PM2.5 Pollution Based on Multi-Satellite Retrievals: A Case Study of Seasonal Variation in the Yangtze River Delta, China in 2013
Wang, Hong
Li, Jiawen
Gao, Zhiqiu
Yim, Steve H. L.
Shen, Huanfeng
Ho, Hung Chak
Li, Zhiyuan
Zeng, Zhaoliang
Liu, Chao
Li, Yubin
Ning, Guicai
Yang, Yuanjian
REMOTE SENSING, 2019, 11 (23)
[27] Estimation and Analysis of the Nighttime PM2.5 Concentration Based on LJ1-01 Images: A Case Study in the Pearl River Delta Urban Agglomeration of China
Wang, Yanjun
Wang, Mengjie
Huang, Bo
Li, Shaochun
Lin, Yunhao
REMOTE SENSING, 2021, 13 (17)

← 1 2 3 →