A5101656664- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Vehicle emissions and performance
- Atmospheric and Environmental Gas Dynamics
- Mercury impact and mitigation studies
- Marine and coastal ecosystems
- Nonlinear Differential Equations Analysis
- Toxic Organic Pollutants Impact
- Maritime Transport Emissions and Efficiency
- Catalytic C–H Functionalization Methods
- Isotope Analysis in Ecology
- Meteorological Phenomena and Simulations
- Indoor Air Quality and Microbial Exposure
- Photochemistry and Electron Transfer Studies
- Water Treatment and Disinfection
- Catalytic Processes in Materials Science
- Agriculture, Soil, Plant Science
- Environmental Changes in China
- Differential Equations and Boundary Problems
- Dental Health and Care Utilization
- Differential Equations and Numerical Methods
- Microplastics and Plastic Pollution
Shandong University
2016-2025
Shihezi University
2010-2025
Agricultural Genomics Institute at Shenzhen
2023-2024
Chinese Academy of Agricultural Sciences
2023-2024
Ministry of Agriculture and Rural Affairs
2023-2024
Fudan University
1994-2024
Sun Yat-sen University
2015-2024
Weifang University
2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
Qingdao Binhai University
2020-2024
Abstract. We analyzed the measurements of ozone (O3) and its precursors made at rural/suburban sites downwind four large Chinese cities – Beijing, Shanghai, Guangzhou Lanzhou, to elucidate their pollution characteristics, regional transport, in situ production, impacts heterogeneous processes. The same measurement techniques observation-based model were used minimize uncertainties comparison results due difference methodologies. All suffered from serious O3 but showed different precursor...
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...
Despite growing interest in the visible light‐absorbing organic component of atmospheric aerosols, referred to as “brown” carbon, our knowledge its chemical composition remains limited. It is well accepted that biomass burning one important source carbon atmosphere. In this study, cloud water samples heavily affected by were collected at Mount Tai (1534 m, ASL), located Shandong province North China Plain summer 2008. The analyzed with high performance liquid chromatography equipped a UV/Vis...
Abstract. We analyze a photochemical smog episode to understand the oxidative capacity and radical chemistry of polluted atmosphere in Hong Kong Pearl River Delta (PRD) region. A box model based on Master Chemical Mechanism (MCM v3.2) is constrained by an intensive set field observations elucidate budgets ROx (ROx = OH+HO2+RO2) NO3 radicals. Highly abundant precursors (i.e. O3, HONO carbonyls), nitrogen oxides (NOx) volatile organic compounds (VOCs) facilitate strong production efficient...
Abstract. Tropospheric ozone (O3) is a trace gas playing important roles in atmospheric chemistry, air quality and climate change. In contrast to North America Europe, long-term measurements of surface O3 are very limited China. We compile available observations at Mt. Tai – the highest mountain over China Plain during 2003–2015 analyze decadal change its sources. A linear regression analysis shows that summertime measured has increased significantly by 1.7 ppbv yr−1 for June 2.1 July–August...
Abstract. Nitryl chloride (ClNO2) is a dominant source of chlorine radical in polluted environment, and can significantly affect the atmospheric oxidative chemistry. However, abundance ClNO2 its exact role are not fully understood under different environmental conditions. During summer 2014, we deployed chemical ionization mass spectrometer to measure dinitrogen pentoxide (N2O5) at rural site North China Plain. Elevated mixing ratios (> 350 pptv) were observed most nights with low levels...
The air quality in China has been improved substantially, however fine particulate matter (PM2.5) still remain at a high level many areas. PM2.5 pollution is complex process that attributed to gaseous precursors, chemical, and meteorological factors. Quantifying the contribution of each variable can facilitate formulation effective policies precisely eliminate pollution. In this study, we first used decision plot map out Random Forest (RF) model for single hourly data set constructed...
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...
Abstract This study investigated the particle size‐ and age‐dependent mixing structures of individual particles in clean polluted air. Aerosols were classified into eight components: sea salt, mineral dust, fly ash, metal, soot, sulfates, nitrates, organic matter (OM). Based on our aerosol classification, a that consists two or more components can be defined as an internally mixed particle. Otherwise, it is considered to externally Within class, we identified four heterogeneous structures:...
Abstract. Nitrate aerosol makes up a significant fraction of fine particles and plays key role in regional air quality climate. The North China Plain (NCP) is one the most industrialized polluted regions China. To obtain holistic understanding nitrate pollution its formation mechanisms over NCP region, intensive field observations were conducted at three sites during summertime 2014–2015. measurement include an urban site downtown Jinan – capital city Shandong Province –, rural downwind...
Abstract. Dinitrogen pentoxide (N2O5) and nitryl chloride (ClNO2) are key species in nocturnal tropospheric chemistry have significant effects on particulate nitrate formation the following day's photochemistry through chlorine radical production NOx recycling upon photolysis of ClNO2. To better understand roles N2O5 ClNO2 high-aerosol-loading environment northern China, an intensive field study was carried out at a high-altitude site (Mt. Tai, 1465 m a.s.l.) North China Plain (NCP) during...
[1] To evaluate the wintertime regional brown haze in northern China, trace gases and aerosols were measured at an urban site between 9 20 November 2009. Ion chromatography transmission electron microscopy (TEM) used to investigate soluble ions PM2.5 mixing state of individual particles. The contrasts clear hazy days examined detail. Concentrations primary including NO (55.62 ppbv), NO2 (54.86 SO2 (83.03 CO (2.07 ppmv) on 2 6 times higher than those days. In contrast, concentrations O3...
Abstract Carbonyls are an important group of volatile organic compounds (VOCs) that play critical roles in tropospheric chemistry. To better understand the formation mechanisms carbonyl compounds, extensive measurements carbonyls and related parameters were conducted Beijing summer 2008. Formaldehyde (11.17 ± 5.32 ppbv), acetone (6.98 3.01 acetaldehyde (5.27 2.24 ppbv) most abundant species. Two dicarbonyls, glyoxal (0.68 0.26 methylglyoxal (MGLY; 1.10 0.44 also present relatively high...