Qian Zhang

Guilin University of Electronic Technology

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Jianmin Chen

Fudan University

Xiaoxi Zhao

Research Center for Eco-Environmental Sciences

Min Hu

State Key Joint Laboratory of Environment Simulation and Pollution Control

C. George

Université Claude Bernard Lyon 1

Shuyi Ma

Shandong University

Tianshu Chen

Hong Kong Polytechnic University

Yang Yue

Shandong University

Li Ao Wang

Chongqing University

Shuguang Wang

Linyi University

Huifang Li

Guilin University of Electronic Technology

Cooperative Institutions

Shandong University

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Guilin University of Electronic Technology

Research Center for Eco-Environmental Sciences

State Key Joint Laboratory of Environment Simulation and Pollution Control

Fudan University

Centre National de la Recherche Scientifique

Weihai Science and Technology Bureau

Chinese Research Academy of Environmental Sciences

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Leaching behavior and kinetics of beryllium in beryllium-containing sludge (BCS)

Environmental Pollution (2024)

Shan Zhong Min Hu Lishan Zhang Huifang Li Qian Zhang

10.1016/j.envpol.2024.124497

Cite

Citations (0)

Unveiling the underestimated direct emissions of nitrous acid (HONO)

Proceedings of the National Academy of Sciences (2023)

Qian Zhang Pengfei Liu Yan Wang C. George Tianshu Chen

Gaseous nitrous acid (HONO) is a critical source of hydroxyl radicals (OH) in the troposphere. While both direct and secondary sources contribute to atmospheric HONO, direct emissions have traditionally been considered minor contributors. In this study, we developed δ 15 N and δ 18 O isotopic fingerprints to identify six direct HONO emission sources and conducted a 1-y case study on the isotopic composition of atmospheric HONO at rural and urban sites. Interestingly, we identified that livestock farming is a previously overlooked direct source of HONO and determined its HONO to ammonia (NH 3 ) emission ratio. Additionally, our results revealed that spatial and temporal variations in atmospheric HONO isotopic composition can be partially attributed to direct emissions. Through a detailed HONO budget analysis incorporating agricultural sources, we found that direct HONO emissions accounted for 39~45% of HONO production in rural areas across different seasons. The findings were further confirmed by chemistry transport model simulations, highlighting the significance of direct HONO emissions and their impact on air quality in the North China Plain. These findings provide compelling evidence that direct HONO emissions play a more substantial role in contributing to atmospheric HONO than previously believed. Moreover, the δ 15 N and δ 18 O isotopic fingerprints developed in this study may serve as a valuable tool for further research on the atmospheric chemistry of reactive nitrogen gases.

Nitrous acid

Atmospheric chemistry

10.1073/pnas.2302048120

Cite

Citations (32)