A5100444319- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Air Quality and Health Impacts
- Atmospheric Ozone and Climate
- Air Quality Monitoring and Forecasting
- Atmospheric and Environmental Gas Dynamics
- Vehicle emissions and performance
- Meteorological Phenomena and Simulations
- Gas Dynamics and Kinetic Theory
- Climate Change and Health Impacts
- nanoparticles nucleation surface interactions
- Amyloidosis: Diagnosis, Treatment, Outcomes
- Medical Imaging and Pathology Studies
- Water Quality Monitoring and Analysis
- Climate change and permafrost
- Toxic Organic Pollutants Impact
- Climate variability and models
- SAS software applications and methods
- Carbon Dioxide Capture Technologies
- Healthcare Systems and Challenges
- Energy and Environmental Systems
- Environmental and Agricultural Sciences
- Impact of Light on Environment and Health
- Advanced Nanomaterials in Catalysis
- Radioactive element chemistry and processing
Nanjing University of Information Science and Technology
2020-2025
China Meteorological Administration
2020-2025
Max Planck Institute for Chemistry
2017-2024
National Institute of Metrology
2024
State Key Joint Laboratory of Environment Simulation and Pollution Control
2013-2022
Tsinghua University
2013-2022
Jinan University
2018
Environmental Protection Agency
2015-2016
Research Triangle Park Foundation
2015-2016
East China University of Science and Technology
2016
In January 2013, a severe regional haze occurred over the North China Plain. An online-coupled meteorology-chemistry model was employed to simulate impacts of aerosol–meteorology interactions on fine particles (PM2.5) pollution during this episode. The response PM2.5 meteorology change constituted feedback loop whereby planetary boundary layer (PBL) dynamics amplified initial perturbation PM2.5. High concentrations caused decrease surface solar radiation. maximal in daily average radiation...
Aerosol direct effects (ADEs), i.e., scattering and absorption of incoming solar radiation, reduce radiation reaching the ground resultant photolysis attenuation can decrease ozone (O3) formation in polluted areas. One other hand, evidence also suggests that ADE-associated cooling suppresses atmospheric ventilation, thereby enhancing surface-level O3. Assessment ADE impacts is thus important for understanding emission reduction strategies seek co-benefits associated with reductions both...
Driven by a rapid increase of energy consumption and emerging pollution control policies, air pollutant emissions have changed dramatically in China during 2005‐2010. This study developed multi-pollutant emission inventory, used the community multi-scale quality (CMAQ) modeling system to evaluate impact changes on particulate matter soil acidification. During 2005‐2010, SO2, PM10 PM2:5 decreased 14.9%, 15.1% 11.7%, respectively. In contrast, NOX, NMVOC NH3 increased 33.8%, 21.0% 10.4%, The...
Abstract. The Beijing–Tianjin–Hebei (BTH) region has been suffering from the most severe fine-particle (PM2. 5) pollution in China, which causes serious health damage and economic loss. Quantifying source contributions to PM2. 5 concentrations a challenging task because of complicated nonlinear relationships between emissions multiple pollutants spatial regions sectors. In this study, we use extended response surface modeling (ERSM) technique investigate different sectors over BTH region,...
Abstract. Brown carbon (BrC), a certain group of organic (OC) with strong absorption from the visible (VIS) to ultraviolet (UV) wavelengths, makes considerable contribution light on both global and regional scales. A high concentration proportion OC has been reported in China, but studies BrC based long-term observations are rather limited this region. In study, we 3-year results continuous measurement at Station for Observing Regional Processes Earth System (SORPES) Yangtze River Delta,...
Background:Air quality across the northern hemisphere over past two decades has witnessed dramatic changes, with continuous improvement in developed countries North America and Europe, but a contrasting sharp deterioration developing regions of Asia.Objective:This study investigates historical trend long-term exposure to PM2.5 PM2.5-related premature mortality (PM2.5-mortality) its response changes emission that occurred during 1990–2010 hemisphere. Implications for future trends human air...
Abstract. Understanding the mechanism of haze formation is crucial for development deliberate pollution control strategies. Multiphase chemical reactions in aerosol water have been suggested as an important source particulate sulfate during severe (Cheng et al., 2016; Wang 2016). While key role has commonly accepted, relative importance different oxidation pathways aqueous phase still under debate mainly due to questions about pH. To investigate spatiotemporal variability pH and winter North...
Black carbon (BC) plays an important role in the climate system because of its strong warming effect, yet magnitude this effect is highly uncertain owing to complex mixing state aerosols. Here we build a unified theoretical framework describe BC's states, linking dynamic processes BC coating thickness distribution, and show self-similarity for sites diverse environments. The size distribution BC-containing particles found follow universal law independent core size. A new module established...
Tropospheric ozone (O3) and fine particles (PM2.5) come from both local regional emissions sources. Due to the nonlinearity in response of O3 PM2.5 their precursors, contributions multiregional sources are challenging quantify. Here we developed an updated extended surface modeling technique (ERSMv2.0) address this challenge. Multiregional were estimated as sum three components: (1) impacts chemistry on formation pollutant associated with change its precursor levels at receptor region; (2)...
Abstract. Vehicle emissions containing air pollutants created substantial environmental impacts on quality for many traffic-populated cities in eastern Asia. A high-resolution emission inventory is a useful tool compared with traditional tools (e.g. registration data-based approach) to accurately evaluate real-world traffic dynamics and their burden. In this study, Macau, one of the most populated world, selected demonstrate simulation vehicular contribution pollutant concentrations by...
Abstract Decadal hemispheric Weather Research and Forecast‐Community Multiscale Air Quality simulations from 1990 to 2010 were conducted examine the meteorology air quality responses aerosol direct radiative effects. The model's performance for simulation of hourly surface temperature, relative humidity, wind speed, direction was evaluated through comparison with observations NOAA's National Climatic Data Center Integrated Surface Data. inclusion effects improves ability reproduce trend in...
Abstract. Organic aerosol (OA) is a major component of fine particulate matter (PM), affecting air quality, human health, and the climate. The absorptive reflective behavior OA components contributes to determining particle optical properties thus their effects on radiative budget troposphere. There limited knowledge influence molecular composition in polluted urban environment. In this study, we characterized oxygenated collected filter samples autumn 2018 Beijing, China, with inlet for...
Abstract. During the APEC (Asia-Pacific Economic Cooperation) Leaders' 2014 Summit in Beijing, strict regional air emission controls were implemented, providing a unique opportunity to investigate transport and formation mechanism of fine particulate matter (PM2.5). This study explores use vertical observation methods influence on PM2.5 pollution Beijing before during Summit. Vertical profiles extinction coefficient, wind, temperature relative humidity monitored at rural site border Hebei...
Impacts of aerosol cooling are not limited to changes in surface temperature since modulation atmospheric dynamics resulting from the increased stability can deteriorate local air quality and impact human health. Health impacts two manifestations direct effects (ADE) estimated this study: (1) effect on (2) through dynamics. Average mortalities arising enhancement PM2.5 concentration due ADE East Asia, North America Europe be 3-6 times higher than reduced mortality decreases ADE. Our results...
Planetary boundary layer (PBL) meteorology plays a vital role in air pollution, which has drawn increasing attention due to its adverse eco-environmental impacts. Although recent observational studies suggested the vertical heterogeneity of pollutants PBL, overall picture illustrating structure chemistry is still not fully understood, especially for polluted regions China. Here, wintertime observations main gaseous and particulate together with aerosol components ground-based lidar remote...
Abstract Modeling atmospheric black carbon (BC) aerosol optical properties remains largely uncertain due to their complex mixing states, nonsphericity, and heterogeneity of coating distribution. Although there exist numerical models with realistic BC morphologies, these are mostly limited particle‐scale studies have not been coupled large‐scale or climate models. In this study, a multidimensional parameterization scheme is developed by an accurate algorithm for property calculation in global...