A5018808480- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Air Quality Monitoring and Forecasting
- Vehicle emissions and performance
- Atmospheric Ozone and Climate
- Catalysis and Oxidation Reactions
- Catalytic Processes in Materials Science
- Toxic Organic Pollutants Impact
- Carbon dioxide utilization in catalysis
- Industrial Gas Emission Control
- Fire dynamics and safety research
- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Maritime Transport Emissions and Efficiency
- Catalysts for Methane Reforming
- Odor and Emission Control Technologies
- Social Acceptance of Renewable Energy
- Water Quality and Pollution Assessment
- Conferences and Exhibitions Management
- Forest Management and Policy
- Indoor Air Quality and Microbial Exposure
- Spectroscopy and Laser Applications
- Carbon Dioxide Capture Technologies
- Zeolite Catalysis and Synthesis
Fudan University
2016-2025
Institut de Recherches sur la Catalyse et l'Environnement de Lyon
2018
Centre National de la Recherche Scientifique
2018
University of Chinese Academy of Sciences
2007
Lanzhou Institute of Chemical Physics
2007
Laboratory measurements were conducted to determine particle size distribution and polycyclic aromatic hydrocarbons (PAHs) emissions from the burning of rice, wheat, corn straws, three major agricultural crop residues in China. Particle distributions determined by a wide-range spectrometer (WPS). PAHs both particulate gaseous phases simultaneously collected analyzed GC-MS. number showed prominent accumulation mode with peaks at 0.10, 0.15, 0.15 μm for corn-burned aerosols, respectively....
Container ships have been widely recognized as an important emission source within maritime transport. Heavy fuel oil (HFO) and diesel (DO) are the two most commonly used fuels. This study reports characteristics toxicities of particulate matter (PM) emissions from HFO DO combustion in a typical container ship. The PM number size distribution possesses bimodal structure with peaks at ∼20 nm ∼100 nm. PM2.5 factors (EFs) 3.15 ± 0.39 0.92 0.02 g/kg for DO, respectively. benzo[a]pyrene...
Abstract As China ramped-up coal power capacities rapidly while CO 2 emissions need to decline, these would turn into stranded assets. To deal with this risk, a promising option is retrofit co-fire biomass and eventually upgrade CCS operation (BECCS), but the feasibility debated respect negative impacts on broader sustainability issues. Here we present data-rich spatially explicit approach estimate marginal cost curve for decarbonizing sector in BECCS. We identify potential of 222 GW 2836...
Atmospheric black carbon (BC) has a large yet highly uncertain contribution to global warming. When mixed with non-BC/coating material during atmospheric aging, the BC light absorption can be enhanced through lensing effect. Laboratory and modeling studies have consistently found strong enhancement, while results in ambient measurements are conflicting, some reporting weak enhancement even for particles bulk coating amounts. Here, from our direct field observations, we report both minor...
The hygroscopic properties of inorganic salt particles, including (NH4)2SO4, NaCl, Na2SO4 and NaNO3, are investigated using a self-assembled tandem differential mobility analyzer (H-TDMA) system. iso-GF (growth factor) curves derived to illustrate the effects initial particle size (D0) relative humidity (RH) on GFs. For those particles 100 nm, GFs measured agreed well with their theoretical Köhler curves. In range 20-200 NaCl all continuously decrease D0 increasing below deliquescence RH...
A haze episode occurred on 12 September 2009 in Shanghai, when the mass ratio of PM1.0/PM2.5 (PM: particulate matter) reached 0.8. similar variation hygroscopic growth factor distribution was observed for Aitken mode particles and accumulation particles, implying that enhancement fine caused by local atmospheric processing. The hygroscopicity measurements combination with chemical analysis provided strong support significant contribution (NH4)2SO4 NH4NO3 to episode. molar [NH4 + ]/([NO3 − ]...
Size-resolved effective density, mixing state, and hygroscopicity of smoke particles from five kinds agricultural residues burning were characterized using an aerosol chamber system, including a volatility/hygroscopic tandem differential mobility analyzer (V/H-TDMA) combined with particle mass (APM). To profile relationship between the thermodynamic properties chemical compositions, PM1.0 PM2.5 also measured for water soluble inorganics, mineral elements, carbonaceous materials like organic...
Abstract Particle size distributions in the range of 0.01–10 µm were measured urban Shanghai summer 2013 using a Wide‐range Spectrometer (WPS). Size‐segregated aerosol samples collected concurrently Micro‐Orifice Uniform Deposit Impactor (MOUDI), which aided our in‐depth understanding new particle formation (NPF) mechanism polluted Yangtze River Delta area. During observations, 16 NPF events occurred at high temperatures (~34.7°C) on clear and sunny days. In ammonium‐poor PM 1.0 (particulate...
Abstract. Multi-pollutants in smoke particulate matter (SPM) were identified and quantified for the biomass burning of five major agricultural residues (wheat, rice, corn, cotton, soybean straw) China by an aerosol chamber system combined with various measurement techniques. The primary emission factors (EFs) PM1. 0 PM2. 5 are 3.04–12.64 3.25–15.16 g kg−1. Organic carbon (OC), elemental (EC), water-soluble inorganics (WSIs), organic acids (WSOAs), amine salts (WSAs), trace mineral elements...
The effectiveness of several zeolite catalysts was investigated using the cataluminescence (CTL) gas sensor system. Trace amounts n-hexane in air samples were detected by this method. This research establishes that specific pore size offers designable environment for selective CTL reaction, and "Lewis-type" basic sites appear to contribute catalytic nature surface. By incorporating either Cs+ or K+, velocity luminescence intensity these reactions increase while going from Na Cs, according...
The evolution in the dark of physiochemical properties and chemical composition smoke particles emitted from wheat straw burning, as well effect relative humidity (RH) on these properties, was investigated an aerosol chamber. are composed primarily carbonaceous materials a considerable amount inorganic salts (∼25 wt.%). During aging, fraction PM1.0 increases, mainly due to formation more sulfate nitrate at expense chloride; this heterogeneous conversion is facilitated high RH. hygroscopicity...