A5101996831- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Air Quality Monitoring and Forecasting
- Spectroscopy and Laser Applications
- Water Quality Monitoring and Analysis
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Parasitic infections in humans and animals
- Vehicle emissions and performance
- Congenital Anomalies and Fetal Surgery
- Analytical Chemistry and Sensors
- Hydrology and Watershed Management Studies
- Marine and coastal ecosystems
- Ecology and Conservation Studies
- Gas Sensing Nanomaterials and Sensors
- Soil and Water Nutrient Dynamics
- Fungal Biology and Applications
- Climate Change, Adaptation, Migration
- Hydrological Forecasting Using AI
- Advanced Chemical Sensor Technologies
- Evaluation and Optimization Models
- Atmospheric aerosols and clouds
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Plant and Fungal Species Descriptions
Hubei University of Science and Technology
2025
Hefei Institutes of Physical Science
2007-2024
Chinese Academy of Sciences
2015-2024
Anhui Institute of Optics and Fine Mechanics
2015-2024
Hospital for Tropical Diseases
2020-2024
National Institute for Parasitic Diseases
2020-2024
University of Chinese Academy of Sciences
2019-2024
Sun Yat-sen University
2023-2024
Beijing Center for Disease Prevention and Control
2024
Vector (United States)
2021-2024
Abstract. Nitrous acid (HONO) is a key determinant of the daytime radical budget in boundary layer, with quantitative measurement required to understand OH abundance. Accurate and precise measurements HONO are therefore needed; however challenging compound measure field, particular chemically complex highly polluted environment. Here we report an intercomparison exercise between performed by two wet chemical techniques (the commercially available long-path absorption photometer (LOPAP)...
Abstract. Nitrous acid (HONO), an important precursor of the hydroxyl radical (OH), plays a key role in atmospheric chemistry, but its sources are still debated. The production HONO on aerosol surfaces or ground nocturnal atmospheres remains controversial. vertical profile provides information and NO2 to understand loss. In this study, we report first high-resolution (<2.5 m) profiles measured from situ instruments movable container that was lifted side wiring 325 m meteorological tower...
Abstract. Gaseous nitrous acid (HONO) is an important source of OH radicals in the troposphere. However, its source, especially that during daytime hours remains unclear. We present instrument for simultaneous unambiguous measurements HONO and NO2 with high time resolution based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS). To achieve robust performance system stability under different environment conditions, current IBBCEAS has been developed significant...
Abstract. Because nitrous acid (HONO) photolysis is a key source of hydroxyl (OH) radicals, identifying the atmospheric sources HONO essential to enhance understanding chemistry processes and improve accuracy simulation models. We performed seasonal field observations in coastal city southeastern China, along with measurements trace gases, aerosol compositions, rate constants (J), meteorological parameters. The results showed that average observed concentration was 0.54 ± 0.47 ppb. Vehicle...
Abstract. The major air pollutant emissions have decreased, and the overall quality has substantially improved across China in recent years as a consequence of active clean policies for mitigating severe pollution problems. As key precursors formaldehyde (HCHO) ozone (O3), volatile organic compounds (VOCs) are still increasing due to lack mitigation measures VOCs. In this study, we investigated drivers HCHO variability from 2015 2019 over Hefei, eastern China, by using ground-based...
Abstract. This study investigates a multi-elevation fast synchronous multi-axis differential optical absorption spectroscopy (FS MAX-DOAS) observation system that can rapidly acquire trace gas profiles. It modifies the conventional MAX-DOAS method by sequentially scanning at elevation angles using motors. The new incorporates two-dimensional area array charge-coupled device (CCD) grating spectrometer, telescopes with small field of view (< 1°), high-speed shutter switching module, and...
Abstract. Mobile passive differential optical absorption spectroscopy measurements of SO2 and NO2 were performed in the Guangzhou eastern area (GEA) during Asian Games 2010 from November to December 2010. The observations carried out between 10:00 13:00 (local time, i.e., daylight). Spatial temporal distributions this obtained emission sources determined using wind field data. vertical column densities found agree with Ozone Monitoring Instrument values. correlation coefficient (referred as...
Abstract. We present an improved incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) system based on iterative retrieval algorithm for the simultaneous detection of atmospheric nitrous acid (HONO) and nitrogen dioxide (NO2). The conventional IBBCEAS depends absolute change in light intensity, which requires high source stability stable transmission intensity all optical components. new has module to obtain effective path length, concentrations HONO NO2 are then determined...
Background Echinococcosis is a zoonotic parasitic disease caused by larval stages of cestodes belonging to the genus Echinococcus . The infection affects people’s health and safety as well agropastoral sector. In China, human echinococcosis major public burden, especially in western China. people agricultural pastoral economy. Therefore, it important understand prevalence status spatial distribution order advance our knowledge basic information for prevention control measures reinforcement....
Abstract. Ethane (C2H6) is an important greenhouse gas and plays a significant role in tropospheric chemistry climate change. This study first presents then quantifies the variability, sources, transport of C2H6 over densely populated highly industrialized eastern China using ground-based high-resolution Fourier transform infrared (FTIR) remote sensing along with atmospheric modeling techniques. We obtained retrieval error 6.21 ± 1.2 (1σ)% degrees freedom (DOFS) 1.47 0.2 (1σ) column-averaged...
With the progressive rise in energy demand, scale of oil and gas pipelines continues to increase. Tunnels have been developed plan space reasonably reduce pipeline maintenance repair difficulties. However, for natural pipes laid tunnel, leakage accidents can cause severe results. Based on computational fluid dynamics (CFD) theory, diffusion characteristics tunnels under various scenarios are analyzed using flame acceleration simulation (FLACS) software. It be concluded that (1) tunnel result...
Abstract. We report the development of an instrument for simultaneous fast measurements glyoxal (CHOCHO) and NO2 based on incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) in 438–465 nm wavelength region. The highly reflective cavity mirrors were protected from contamination by N2 purge gas. reduction effective length was calibrated measuring collision-induced oxygen at ∼477 pure gas input with without mirror detection limits developed system evaluated to be 23 parts per...
A cavity ring-down spectroscopy (CRDS) instrument for measuring atmospheric NO3 radical developed in our laboratory is presented detail. Light from a red laser diode (661.85 nm) coupled on-axis into an optical formed by pair of high-reflectivity mirrors (R≥99.9985%) to achieve effective absorption path length approximately 20 km. The detection limit the determined Allan variance field observation with high particles 3.2 pptv (2σ, 10 s). transmission efficiency system calibrated, including...