A5064009995- Air Quality and Health Impacts
- Indoor Air Quality and Microbial Exposure
- Catalytic Processes in Materials Science
- Air Quality Monitoring and Forecasting
- Odor and Emission Control Technologies
- Advanced Chemical Sensor Technologies
- Industrial Gas Emission Control
- Catalysis and Oxidation Reactions
- Atmospheric chemistry and aerosols
Chinese Research Academy of Environmental Sciences
2021-2023
Presently, the treatment of four-way catalysts is important for reducing pollutant emissions from diesel engine exhaust, which a major cause urban haze. In this study, we prepared perovskite-type via citric acid sol–gel method. Experiment results showed that K substitution at site A in LaMnO3 decreased agglomeration effectively, increased contact with reaction gas, promoted conversion Mn3+ → Mn4+, and reduced ignition temperature soot. Ce B-site La0.5K0.5MnO3 produced CeO2 phase Mn4+/Mn3+...
The number of asphalt roads has been rapidly increasing for the past 20 years in China. However, national emission characteristics and evaluation methods this source have not yet reported. Sample analysis field investigation were conducted to establish an inventory road application results indicated that emissions organic compounds increased from 0.07 0.82 Tg 2000 2020, excluded trapped underlying layer. Emissions particulate matter, fumes, benzo[a]pyrene followed same trend. positive...