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

Qing Li, Kun Zhang, Rui Li, Liumei Yang, Yanan Yi, Zhiqiang Liu, Xiaojuan Zhang, Jialiang Feng, Qiongqiong Wang, Wu Wang, Ling Huang, Yangjun Wang, Shunyao Wang, Hui Chen, Andy Chan, Mohd Talib Latif, Maggie Chel Gee Ooi, Kasemsan Manomaiphiboon, Jian Zhen Yu, Li Li