A5072686542- Cryospheric studies and observations
- Polar Research and Ecology
- Atmospheric chemistry and aerosols
- Geology and Paleoclimatology Research
- Mercury impact and mitigation studies
- Heavy metals in environment
- Arctic and Antarctic ice dynamics
- Groundwater and Isotope Geochemistry
- Climate change and permafrost
- Atmospheric Ozone and Climate
- Winter Sports Injuries and Performance
- Air Quality and Health Impacts
- Toxic Organic Pollutants Impact
- Atmospheric and Environmental Gas Dynamics
- Environmental Quality and Pollution
- Per- and polyfluoroalkyl substances research
- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Chemical Analysis and Environmental Impact
- Geochemistry and Geologic Mapping
- Methane Hydrates and Related Phenomena
- Heavy Metal Exposure and Toxicity
- Wastewater Treatment and Nitrogen Removal
- Water Treatment and Disinfection
- Isotope Analysis in Ecology
East China Normal University
2015-2025
State Key Laboratory of Estuarine and Coastal Research
2021-2025
Ministry of Natural Resources
2022-2025
Polar Research Institute of China
2012-2022
Institut de physique du globe de Paris
2020
Brown University
2014-2017
University of Manchester
2015
Lifespan
2014
Shanghai First People's Hospital
1989
Airborne microplastics (MPs) can undergo long range transport to remote regions. Yet there is a large knowledge gap regarding the occurrence and burden of MPs in marine boundary layer, which hampers comprehensive modelling their global atmospheric transport. In particular, efficiency with different sizes morphologies remains uncertain. Here we show hemispheric-scale analysis airborne along cruise path from mid-Northern Hemisphere Antarctica. We present inaugural measurements concentrations...
Abstract Largely removed from anthropogenic delivery of nitrogen (N), Antarctica has notably low levels nitrogen. Though our understanding biological sources ammonia have been elucidated, the microbial drivers nitrate (NO 3 − ) cycling in coastal remains poorly understood. Here, we explore N Antarctica, unraveling origin NO via oxygen isotopes soil and lake sediment, through reconstruction 1968 metagenome-assembled genomes 29 phyla. Our analysis reveals metabolic potential for 2 fixation,...
Abstract A detailed history of volcanism covering the last 2840 years is reconstructed from top 100.42 m a 109.91 ice core Dome (DA2005 core), East Antarctica. Using two known volcanic stratigraphic markers, mean accumulation rate during period AD 1260-1964 found to be 23.2 mmw.e. -1 , consistent with previously reported at A. This used date entire core. Volcanic eruptions in 840 BC-AD1998 are detected as outstanding sulphate events. Seventy-eight identified, 2.7 per century. Comparisons...
Abstract. Snowpits along a traverse from coastal East Antarctica to the summit of ice sheet (Dome Argus) are used investigate post-depositional processing nitrate (NO3−) in snow. Seven snowpits sites with accumulation rates between 24 and 172 kg m−2 a−1 were sampled depths 150 300 cm. At continental interior (low accumulation, < 55 a−1), mass fraction is generally > 200 ng g−1 surface snow decreases quickly depth 50 g−1. Considerably increasing values δ15N also observed (16–461 ‰ vs....
Abstract Several postdepositional processes impact snow nitrate; however, only the isotopic effects of nitrate photolysis have been quantified. Here we discuss results from experiments in field Antarctic investigating fractionation due to volatilization. At −35 °C, concentration and composition remained constant during 16‐day experiment. −24 7.5% was lost, synchronous with 1.5‰ decrease δ 18 O a 15 N. −4 38% N decreased by 3.1 1.8‰, respectively. Results at °C yield calculated constants...
Mercury (Hg) is a globally spread trace metal due to its long atmospheric residence time. Yet, our understanding of processes (e.g., redox reactions and deposition) driving Hg cycling still limited, especially in polar regions. The Antarctic continent, by virtue remoteness, the perfect location investigate absence significant local anthropogenic impact. Here, we present first 2 year record (2016-2017) total suspended particulate mercury (PHg) concentrations along with year-round...
Mercury (Hg) is a neurotoxic pollutant that ubiquitous on the planet and receives global concern because of its adverse health effects. Particle-bound HgP formation in atmosphere stems mainly from adsorption reactive gaseous HgII aerosol particles, particularly sea salt aerosol. However, observed comparable abundance over marine has not been reproduced by traditional statistics-based schemes, which were constructed continental observations. This study incorporated an improved mechanistic...
Ice core measurements reveal dipole-like snow accumulation trends over West Antarctica throughout the 20th century, with an increase of >2000 billion metric tons Antarctic Peninsula and Ellsworth Land but a decrease ~500 Marie Byrd Land. Although atmospheric teleconnections were frequently revealed, linking variability between tropics higher latitudes on interannual decadal timescales, centennial-scale teleconnection is absent from literature. Here, using statistical analysis numerical...
Abstract. Ambient polycyclic aromatic hydrocarbons (PAHs) and their derivatives have severe adverse impacts on organism health ecosystem safety. However, global distributions, sources, fate in marine aerosols remain poorly understood. To fill the knowledge gap, high-volume air samples were collected along a transect from China to Antarctica analyzed for particulate PAHs derivatives. The highest PAH concentrations observed Western Pacific (WP: 447±228 pg/m³), followed by East Sea (ECS: 195...
Abstract Although mercury (Hg) is a neurotoxic metal of global relevance, its Antarctic biogeochemical cycles are not well characterized. Here, we present the total Hg (THg) distribution and stable isotopic fractionation between Zhongshan Station Dome A (1,248 km), in eastern Antarctica, to characterize THg sources controlling factors. Surface snow samples blocks similarly exhibited higher concentrations coastal interior sections than intermediate section. From (notably for 200 202 Hg),...
Abstract Ammonium (NH4+) in the marine boundary layer (MBL) was measured during Chinese Antarctic (2015–2016) and Arctic (2021) Research Expedition. A significant latitudinal gradient NH4+ concentration observed, mainly fine-mode (< 2.1 μm) MBL. showed highest coastal East Asia (CEA), followed by Southeast Australia (CSAA). Low levels were detected open oceans, i.e., Ocean (AO), Southern (SO), western Pacific (WPO). In AO, WPO, SO regions, air masses arriving at sampling sites originated...
Abstract A 108‐m ice core (32SC) spanning the period from 1616 to 2016 CE was retrieved coastal Princess Elizabeth Land (PEL), East Antarctica (69.97°S, 76.52°E, 1,113 m elevation). The analyzed investigate relationship between sea salt aerosols (SSAs), dynamics, and atmospheric circulation. first component of Empirical Orthogonal Function analysis (32SC REOF1), which explains 58% variance in ions, serves as a proxy for SSAs. Time series correlation reveals that had minimal impact on 32SC...