Explanipedia

Oxidation-driven acceleration of NPF-to-CCN conversion under polluted atmosphere: Evidence from mountain-top observations in Yangtze River Delta Open

Weibin Zhu, Sai Shang, Jieqi Wang, Yunfei Wu, Zhaoze Deng , et al. · 2025

To what extent the new particle formation (NPF) contributed to the CCN remained unclear, especially at the boundary layer top (BLT) in polluted atmosphere. In this study, measurements at a mountain top background site in southeastern China…

Supplementary material to "Oxidation-driven acceleration of NPF-to-CCN conversion under polluted atmosphere: Evidence from mountain-top observations in Yangtze River Delta" Open

Weibin Zhu, Sai Shang, Jieqi Wang, Yunfei Wu, Zhaoze Deng , et al. · 2025

Anthropogenic emission largely enhances nocturnal oxidation chemistry in the upper mixing layer of megacities Open

Keding Lu, Haichao Wang, Yujie Qin, Lei Li, Chenglei Pei , et al. · 2025

Nitrate radicals (NO₃) play a crucial role in the removal of nitrogen oxides (NO_x) from Earth's atmosphere and act as the dominant nocturnal oxidant in polluted regions, thereby influencing air quality, climate, and e…

Vertical changes in volatile organic compounds (VOCs) and impacts on photochemical ozone formation Open

Xiaobing Li, Bin Yuan, Yibo Huangfu, Suxia Yang, Xin Song , et al. · 2025

Volatile organic compounds (VOCs) play crucial roles in regulating the formation of tropospheric ozone. However, limited knowledge on the interactions between vertical VOC variations and photochemical ozone formation in the planetary bound…

Carbon reduction requires attention to the contribution of natural gas use: Combustion and leakage Open

Haoyuan Chen, Tao Song, Xiao Dong Chen, Yinghong Wang, Mengtian Cheng , et al. · 2025

Natural gas will continue to replace coal in the process of global energy structure reform, but its leakage potential can delay the realization of global carbon neutrality. To quantify its impact, we established a carbon dioxide (CO2) and …

Vertical changes in volatile organic compounds (VOCs) and impacts on photochemical ozone formation Open

Xiaobing Li, Bin Yuan, Yibo Huangfu, Suxia Yang, Xin Song , et al. · 2024

Volatile organic compounds (VOCs) play crucial roles in regulating the formation of tropospheric ozone. However, limited knowledge on the interactions between vertical VOC variations and photochemical ozone formation has hindered effective…

Supplementary material to "Vertical changes in volatile organic compounds (VOCs) and impacts on photochemical ozone formation" Open

Xiaobing Li, Bin Yuan, Yibo Huangfu, Suxia Yang, Xin Song , et al. · 2024

Vertical distributions of VOCs in the Tibetan Plateau background region Open

Xuanxuan Xue, Fugeng Zha, Yinghong Wang, Yang Zhang, Yu Wang , et al. · 2024

Exploring the vertical variation in volatile organic compounds (VOCs) in background regions can provide information on the spatial distribution of pollutants, providing a scientific basis for atmospheric pollution prevention and control st…

Enhanced nitrous acid (HONO) formation via NO2 uptake and its potential contribution to heavy haze formation during wintertime Open

Zirui Liu, Rong Yang, Jingyun Liu, Keding Lu, Guiqian Tang , et al. · 2024

A full understanding of the sources of atmospheric nitrous acid (HONO) in the polluted urban atmosphere remains a challenge. In this study, ambient HONO and relevant species were measured during January 2019 at an urban site in Beijing, Ch…

Characteristics of Sub-Micron Aerosols Above the Urban Canopy in Beijing During Warm Seasons Open

Q. Q. Wang, Wei Du, Wei Zhou, Yingjie Zhang, Conghui Xie , et al. · 2024

Huge Challenges of Improving Ozone Pollution in China: High Regional Background Ozone Calculated from Observational Data Open

Yusi Liu, Yang Zhang, Fan Yang, Linlin Liang, Guiqian Tang · 2024

Can China replicate the miracle of particle pollution control for ozone pollution control? Open

Guiqian Tang, Mengtian Cheng, Yinghong Wang, Zhixuan Bai, Yanyu Kang , et al. · 2024

Vertical distribution of black carbon and its mixing state in the urban boundary layer in summer Open

Hang Liu, Xiaole Pan, Shandong Lei, Yuting Zhang, Aodong Du , et al. · 2023

The vertical distribution of black carbon (BC), as well as its mixing state, is of great concern due to BC's strong regional climatic and environmental effects. In this study, vertical measurements were conducted through a moveable contain…

Elucidating HONO formation mechanism and its essential contribution to OH during haze events Open

Xinran Zhang, Shengrui Tong, Chenhui Jia, Wenqian Zhang, Zhen Wang , et al. · 2023

Atmospheric nitrous acid (HONO) chemistry is of critical importance to air quality during polluted haze events, especially in China. However, current air quality models (such as WRF-CHEM, WRF-CMAQ, Box-MCM) generally underestimate the conc…

Problems with and Improvement of HCHO/NO2 for Diagnosing Ozone Sensitivity—A Case in Beijing Open

Yanyu Kang, Guiqian Tang, Qihua Li, Baoxian Liu, Dan Yao , et al. · 2023

Rfn (formaldehyde/nitrogen dioxide) is a common indicator based on satellite observations used to classify ozone formation sensitivity. However, it may underestimate anthropogenic volatile organic compounds (VOCs) in heavily polluted citie…

Contradictory Response of Ozone and Particulate Matter Concentration to Boundary Layer Meteorology Open

Yusi Liu, Guiqian Tang · 2023

Contradictory Response of Ozone and Particulate Matter Concentration to Boundary Layer Meteorology Open

Yusi Liu, Guiqian Tang · 2023

An Increase in Primary Formaldehyde Emissions Induced by the Coal-to-Gas Policy in Beijing Open

Guiqian Tang, Yanyu Kang, Baoxian Liu, Yao Dan, Yiming Wang , et al. · 2023

The urgent need to control volatile organic compound pollution over the Qinghai-Tibet Plateau Open

Guiqian Tang, Dan Yao, Yanyu Kang, Yuting Liu, Yusi Liu , et al. · 2022

Ozone profiles without blind area retrieved from MAX-DOAS measurements and comprehensive validation with multi-platform observations Open

Xiangguang Ji, Cheng Liu, Yang Wang, Qihou Hu, Hua Lin , et al. · 2022

Tropospheric ozone (O3) profiles, especially within the boundary layer, are essential for studying the vertical, temporal, spatial variations, as well as the formation sensitivity and regional transport of O3. However, it is rare to find c…

Observational Evidence of Aerosol Radiation Modifying Photochemical Ozone Profiles in the Lower Troposphere Open

Shuangshuang Shi, Bin Zhu, Guiqian Tang, Cao Liu, Junlin An , et al. · 2022

Aerosol optical effects can trigger complex changes in solar shortwave radiation (SW) in the atmosphere, resulting in significant impacts on the photochemistry and vertical structure of ozone. This paper provides observational evidence of …

Elucidating HONO formation mechanism and its essential contribution to OH during haze events Open

Maofa Ge, Xinran Zhang, Shengrui Tong, Chenhui Jia, Wenqian Zhang , et al. · 2022

Atmospheric nitrous acid (HONO) chemistry is of critical importance to air quality during polluted haze events. However, current air quality models generally underestimate the concentration of HONO, indicating that a fundamental understand…

Characteristics and Sources of Volatile Organic Compounds in the Nanjing Industrial Area Open

Yuezheng Feng, Junlin An, Guiqian Tang, Yuxing Zhang, Junxiu Wang , et al. · 2022

In this study, 56 volatile organic compounds species (VOCs) and other pollutants (NO, NO2, SO2, O3, CO and PM2.5) were measured in the northern suburbs of Nanjing from September 2014 to August 2015. The total volatile organic compound (TVO…

Vertical Changes of Pm2.5 Concentration Driven by Meteorology in the Atmospheric Boundary Layer During a Heavy Air Pollution Event in Central China Open

Xiaoyun Sun, Tianliang Zhao, Guiqian Tang, Yongqing Bai, Shaofei Kong , et al. · 2022

Significant Decline in Aerosols in the Mixing Layer in Beijing from 2015 to 2020: Effects of Regional Coordinated Air Pollution Control Open

Zhenyu Zhu, Guiqian Tang, Liping Wu, Yinghong Wang, Baoxian Liu , et al. · 2022

Observations and Explicit Modeling of Summer and Autumn Ozone Formation in Urban Beijing: Identification of Key Precursor Species and Sources Open

Jiaxing Han, Zirui Liu, Bo Hu, Guiqian Tang, Quan Liu , et al. · 2022

Reduced volatility of aerosols from surface emissions to the top of the planetary boundary layer Open

Quan Liu, Dantong Liu, Yangzhou Wu, Kai Bi, Wenkang Gao , et al. · 2021

Aerosols from surface emission can be transported upwards through convective mixing in the planetary boundary layer (PBL), which subsequently interact with clouds, serving as important sources to nucleate droplets or ice particles. However…

Trends of Planetary Boundary Layer Height Over Urban Cities of China From 1980–2018 Open

Yanfeng Huo, Yonghong Wang, Pauli Paasonen, Quan Liu, Guiqian Tang , et al. · 2021

Boundary layer height (BLH) is an important parameter in climatology and air pollution research, especially in urban city. We calculated the BLH with a bulk Richardson number (Ri) method over urban cities of China during 1980–2018 using Eu…

Evaluation of a Method for Calculating the Height of the Stable Boundary Layer Based on Wind Profile Lidar and Turbulent Fluxes Open

Haijiong Sun, Hongrong Shi, Hongyan Chen, Guiqian Tang, Chen Sheng , et al. · 2021

The height of the stable boundary layer (SBL), known as the nocturnal boundary layer height, is controlled by numerous factors of different natures. The SBL height defines the state of atmospheric turbulence and describes the diffusion cap…

Comment on acp-2021-362 Open

Quan Liu, Dantong Liu, Yangzhou Wu, Kai Bi, Wenkang Gao , et al. · 2021

Abstract. Aerosols from surface emission can be transported upwards through convective mixing in the planetary boundary layer (PBL), which subsequently interact with clouds, serving as important sources to nucleate droplet…

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