A5101408948- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Air Quality Monitoring and Forecasting
- Microbial Fuel Cells and Bioremediation
- Geochemistry and Elemental Analysis
- Atmospheric Ozone and Climate
- Atmospheric aerosols and clouds
- Radioactive element chemistry and processing
- Microbial bioremediation and biosurfactants
- Vehicle emissions and performance
- Atmospheric and Environmental Gas Dynamics
- Hydrocarbon exploration and reservoir analysis
- Toxic Organic Pollutants Impact
- Electromagnetic wave absorption materials
- Pharmaceutical and Antibiotic Environmental Impacts
- Iron oxide chemistry and applications
- Mass Spectrometry Techniques and Applications
- Advanced Antenna and Metasurface Technologies
- Arsenic contamination and mitigation
- Microbial Community Ecology and Physiology
- Heavy metals in environment
- Metal Extraction and Bioleaching
- Pesticide Residue Analysis and Safety
- Material Properties and Applications
- Chromium effects and bioremediation
China West Normal University
2019-2025
Chongqing Academy of Environmental Science
2023-2025
Guangxi University
2024-2025
Chemical Synthesis Lab
2025
Wuhan Polytechnic University
2024
Chongqing Institute of Green and Intelligent Technology
2018-2023
Nanjing Agricultural University
2022
Beijing National Laboratory for Molecular Sciences
2017-2020
Chinese Academy of Sciences
2017-2020
Guangzhou Institute of Geochemistry
2020
Abstract. To investigate the characteristics of PM2.5 and its major chemical components, formation mechanisms, geographical origins in two megacities, Chengdu (CD) Chongqing (CQ), Sichuan Basin southwest China, daily samples were collected simultaneously at one urban site each city for four consecutive seasons from autumn 2014 to summer 2015. Annual mean concentrations 67.0 ± 43.4 70.9 41.4 µg m−3 CD CQ, respectively. Secondary inorganic aerosol (SNA) organic matter (OM) accounted 41.1 26.1...
Soil organic carbon (SOC) is pivotal for both agricultural activities and climate change mitigation, biochar stands as a promising tool bolstering SOC curtailing soil dioxide (CO2) emissions. However, the involvement of in dynamics underlying interactions among biochar, microbes, iron minerals, fresh matter (FOM, such plant debris) remain largely unknown, especially soils after long-term amendment. We therefore introduced FOM to with without decade-long history amendment, performed microcosm...
Abstract. Amine-containing particles were characterized in an urban area of Chongqing during both summer and winter using a single-particle aerosol mass spectrometer (SPAMS). Among the collected particles, 12.7 % amine-containing 8.3 summer. Amines internally mixed with elemental carbon (EC), organic (OC), sulfate, nitrate. Diethylamine (DEA) was most abundant among particles. Wintertime mainly from northwest direction where forest park located; summer, they southwest (traffic hub)...
Fe(II)–organic matter (Fe(II)–OM) complexes are abundant in the environment and may play a key role for behavior of Fe pollutants. Mixotrophic nitrate-reducing Fe(II)-oxidizing bacteria (NRFeOx) reduce nitrate coupled to oxidation organic compounds Fe(II). Fe(II) occur enzymatically or abiotically by reaction with nitrite that forms during heterotrophic denitrification. However, it is unknown whether Fe(II)–OM can be oxidized NRFeOx. We used cell-suspension experiments mixotrophic bacterium...
Sandy sediments cover 50-60% of the continental shelves and are highly efficient bioreactors in which organic carbon is remineralized inorganic nitrogen reduced to N2. As such they seem play an important role, buffering open ocean from anthropogenic inputs likely remineralizing vast amounts matter formed productive surface waters. To date however, little known about interrelation between porewater transport, grain properties microbial colonization consequences for remineralization rates...
Abstract. Haze pollution is a severe environmental problem, caused by elevation of fine particles (aerodynamic diameter <2.5 µm, PM2.5), which related to secondary aerosol formation, unfavourable synoptic conditions and regional transport, etc. The haze formation in basin areas, along with intensive emission precursors, high relative humidity poor dispersion conditions, still limitedly understood. In this study, field campaign was conducted investigate the factors resulting Sichuan Basin...
Secondary organic aerosol (SOA) plays a pivotal role in visibility and radiative forcing, both of which are intrinsically linked to the refractive index (RI). While previous studies have focused on RI SOA from traditional formation processes, effect multiphase reactions has not been considered. Here, we investigate effects processes light-extinction m-xylene-derived SOA, common type anthropogenic SOA. We find that presence liquid water lead oligomers intermediate products such as glyoxal...
Secondary organic aerosol (SOA), a dominant air pollutant in many countries, threatens the lives of millions people. Extensive efforts have been invested studying formation mechanisms and influence factors SOA. As promising materials eliminating pollutants, role photocatalytic SOA is unclear. In this study, TiO2 was employed to explore its impact on during photooxidation m-xylene with NO x smog chamber. We found that presence strongly suppressed formation. The yields experiments were 0.3-4%,...
Abstract Severe haze pollution has long been an environmental problem, which is complicated and poorly understood in the Sichuan Basin (SCB). In this study, a field observation was carried out to investigate factors driving formation urban Chengdu, typical megacity SCB. It found that accumulation of biomass burning organic aerosol (BBOA) played important role Chengdu. The average mass fraction BBOA PM 2.5 increased from ∼1% during clear days ∼10% severe episodes. A method combining backward...
The long-term seasonal pollution characteristics, environmental effects, and sources of atmospheric volatile organic compounds （VOCs） were investigated based on the one-year （06/2021-05/2022） online observation data VOCs in central urban area Chongqing. results showed that during period, mean value φ（VOCs） was 31.5×10-9, which alkane accounted for highest proportion （39.6%）, followed by oxygenated （OVOCs） （15.6%）, halogenated hydrocarbons （13.9%）, aromatic （11.6%）, olefin （10.5%）, alkyne...