A5067110169- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Atmospheric and Environmental Gas Dynamics
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Vehicle emissions and performance
- Water Quality Monitoring and Analysis
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Spectroscopy and Laser Applications
- Marine and coastal ecosystems
- COVID-19 impact on air quality
- Environmental and Agricultural Sciences
- Advanced Chemical Sensor Technologies
- Aeolian processes and effects
- Plant Ecology and Soil Science
- Remote Sensing and Land Use
- Toxic Organic Pollutants Impact
- MXene and MAX Phase Materials
- Environmental Changes in China
- Advancements in Solid Oxide Fuel Cells
- Evaluation Methods in Various Fields
Nanjing University
2016-2025
Nanchang University
2024-2025
State Key Laboratory of Food Science and Technology
2025
Guizhou Academy of Sciences
2025
Guizhou Institute of Biology
2025
Shanghai University
2021-2024
University of Helsinki
2015-2024
Guangdong Polytechnic of Science and Technology
2024
Anhui Institute of Optics and Fine Mechanics
2024
Hefei Institutes of Physical Science
2024
Abstract Aerosol‐planetary boundary layer (PBL) interactions have been found to enhance air pollution in megacities China. We show that black carbon (BC) aerosols play the key role modifying PBL meteorology and hence enhancing haze pollution. With model simulations data analysis from various field observations December 2013, we demonstrate BC induces heating PBL, particularly upper resulting decreased surface heat flux substantially depresses development of consequently enhances occurrences...
To control the spread of 2019 novel coronavirus (COVID-19), China imposed nationwide restrictions on movement its population (lockdown) after Chinese New Year 2020, leading to large reductions in economic activities and associated emissions. Despite such decreases primary pollution, there were nonetheless several periods heavy haze pollution eastern China, raising questions about well-established relationship between human air quality. Here, using comprehensive measurements modeling, we show...
Abstract Severe air pollution episodes have been frequent in China during the recent years. While high emissions are primary reason for increasing pollutant concentrations, ultimate cause most severe has remained unclear. Here we show that a concentration of particulate matter (PM) will enhance stability an urban boundary layer, which turn decreases layer height and consequently further increases PM concentrations. We estimate strength this positive feedback mechanism by combining new...
Abstract. This work presents an overview of 1 yr measurements ozone (O3) and fine particular matter (PM2.5) related trace gases at a recently developed regional background site, the Station for Observing Regional Processes Earth System (SORPES), in western part Yangtze River Delta (YRD) eastern China. Ozone PM2.5 showed strong seasonal cycles but with contrast patterns: O3 reached maximum warm seasons cold seasons. Correlation analysis suggests VOC-sensitive regime chemistry formation...
Abstract. This paper presents the first results of measurements trace gases and aerosols at three surface sites in outside Beijing before during 2008 Olympics. The official air pollution index near Olympic Stadium data from our nearby site revealed an obvious association between quality meteorology different responses secondary primary pollutants to control measures. Ambient concentrations vehicle-related nitrogen oxides (NOx) volatile organic compounds (VOCs) urban dropped by 25% 20–45% two...
Abstract. The influence of air pollutants, especially aerosols, on regional and global climate has been widely investigated, but only a very limited number studies report their impacts everyday weather. In this work, we present for the first time direct (observational) evidence clear effect how mixed atmospheric pollution changes weather with substantial modification in temperature rainfall. By using comprehensive measurements Nanjing, China, found that agricultural burning plumes fossil...
Atmospheric aerosol formation from biogenic vapors is strongly affected by air pollutants, like NO x , SO 2 and NH 3 .
Significance Aerosol particles can form and grow by gas-to-particle conversion eventually act as seeds for cloud droplets, influencing global climate. Volatile organic compounds emitted from plants are oxidized in the atmosphere, resulting products drive particle growth. We measure growth biogenic vapors with a well-controlled laboratory setup over wide range of tropospheric temperatures. While higher temperatures lead to increased reaction rates concentrations highly molecules, lower allow...
Abstract. Haze pollution caused by PM2.5 is the largest air quality concern in China recent years. Long-term measurements of and precursors chemical speciation are crucially important for evaluating efficiency emission control, understanding formation transport associated with change meteorology, accessing impact human activities on regional climate change. Here we reported long-term continuous PM2.5, components, their at a background station, Station Observing Regional Processes Earth...
Faster than expected Iodine species are one of only a handful atmospheric vapors known to make new aerosol particles, which play central role in controlling the radiative forcing climate. He et al. report experimental evidence from CERN Cosmics Leaving Outdoor Droplets, or CLOUD, chamber demonstrating that iodic acid and iodous rapidly form particles can compete with sulfuric pristine regions. Science , this issue p. 589
To control the spread of 2019 novel coronavirus (COVID-19), China imposed nationwide restrictions on movement its population (lockdown) after Chinese New Year 2020, leading to large reductions in economic activities and associated emissions. Despite such decreases primary pollution, there were nonetheless several periods heavy haze pollution East China, raising questions about well-established relationship between human air quality. Here, using comprehensive measurements modeling, we show...
Abstract. Atmospheric new particle formation (NPF) is an important phenomenon in terms of global number concentrations. Here we investigated the frequency NPF, rates 10 nm particles, and growth size range 10–25 using at least 1 year aerosol size-distribution observations 36 different locations around world. The majority these measurement sites are Northern Hemisphere. We found that NPF has a strong seasonal variability. At analyzed this study, occurs most frequently March–May (on about 30 %...
Abstract. Highly oxidized multifunctional compounds (HOMs) have been demonstrated to be important for atmospheric secondary organic aerosols (SOA) and new-particle formation (NPF), yet it remains unclear which the main HOM pathways are. In this study, a nitrate-ion-based chemical ionization atmospheric-pressure-interface time-of-flight mass spectrometer (CI-APi-TOF) was deployed measure HOMs in boreal forest Hyytiälä, southern Finland. Positive matrix factorization (PMF) applied separate...
Abstract Investigating sulfate formation processes is important not only for air pollution control but also understanding the climate system. Although mechanisms of secondary production have been widely studied, in situ observational evidence implicating an role NO 2 SO oxidation real atmosphere has rare. In this study, we report two unique cases, from intensive campaign conducted at Station Observing Regional Processes Earth System (SORPES) East China, showing distinctly different by and...
Understanding the atmospheric new particle formation (NPF) process within global range is important for revealing budget of aerosols and their impacts. We investigated seasonal characteristics NPF in urban environment Beijing. Aerosol size distributions down to ∼1 nm H2SO4 concentration were measured during 2018–2019. The observed rate 1.5 particles (J1.5) significantly higher than those clean environment, e.g., Hyytiälä, whereas growth not different. Both J1.5 frequency Beijing show a clear...
Atmospheric gas-to-particle conversion is a crucial or even dominant contributor to haze formation in Chinese megacities terms of aerosol number, surface area and mass. Based on our comprehensive observations Beijing during 15 January 2018-31 March 2019, we are able show that 80-90% the mass (PM2.5) was formed via atmospheric reactions days over 65% number concentration particles resulted from new particle (NPF). Furthermore, faster when subsequent growth newly enhanced. Our findings suggest...
Abstract Intense and frequent new particle formation (NPF) events have been observed in polluted urban environments, yet the dominant mechanisms are still under debate. To understand key species governing processes of NPF we conducted comprehensive measurements downtown Beijing during January–March, 2018. We performed detailed analyses on sulfuric acid cluster composition budget, as well chemical physical properties oxidized organic molecules (OOMs). Our results demonstrate that fast...
A key challenge in aerosol pollution studies and climate change assessment is to understand how atmospheric particles are initially formed
Understanding new particle formation and their subsequent growth in the troposphere has a critical impact on our ability to predict atmospheric composition global climate change. High pre-existing loadings have been thought suppress of aerosol particles due high condensation coagulation sinks. Here, based field measurements at mountain site South China, we report, for first time, situ observational evidence remote ambient atmosphere during heavy dust episodes mixed with anthropogenic...