Sources and Sinks of Nitrated Phenols: Application of an Observation-based Model

Sources and Sinks of Nitrated Phenols: Application of an Observation-based Model

Yuwen Peng¹, Sihang Wang¹, Caihong Wu¹, Jipeng Qi¹, Chaomin Wang¹,
Wei Song², Xinmin Wang², Bin Yuan^1,*, Min Shao^1,**

¹ Institute for Environmental and Climate Research, Jinan University, 511443 Guangzhou, China

² Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China

^* byuan@jnu.edu.cn

^** mshao@pku.edu.cn

 

Abstract: Nitrated phenols are one of the intermediate products of aromatics oxidation that has been proved to be phytotoxic, mutagenic and important components of brown carbon and SOA in the atmosphere. Although its sources and sinks have been reported, high-time-resolution measurements of nitrophenols and the evaluation of reported rate constants insufficient. In this paper, we measured the concentration of nitrated phenols at an urban site in Guangzhou, then we use an observation-based model to compare different photolysis frequencies of nitrophenol and analyze its budget. The primary emission of traffic seems to be the dominant factor when considering its diurnal profile. Photolysis has proved to be the dominant sink of nitrophenol in the atmosphere.