A5101690134- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Atmospheric chemistry and aerosols
- Soil Carbon and Nitrogen Dynamics
- Pleistocene-Era Hominins and Archaeology
- Atmospheric and Environmental Gas Dynamics
- Air Quality and Health Impacts
- Atmospheric Ozone and Climate
- Pacific and Southeast Asian Studies
- Atmospheric aerosols and clouds
- Coastal wetland ecosystem dynamics
- Archaeology and ancient environmental studies
- Gas Dynamics and Kinetic Theory
- Geological formations and processes
- Coral and Marine Ecosystems Studies
- Geological and Geophysical Studies
- Radioactivity and Radon Measurements
- Marine and coastal ecosystems
- Hydrocarbon exploration and reservoir analysis
- Geomagnetism and Paleomagnetism Studies
- Particle Dynamics in Fluid Flows
- Climate change and permafrost
- Groundwater and Isotope Geochemistry
- Peatlands and Wetlands Ecology
- Nuclear Physics and Applications
Centre de Recherche Inria Bordeaux - Sud-Ouest
2023
Guangzhou Institute of Geochemistry
2013-2022
Chinese Academy of Sciences
2013-2022
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2022
Peking University
2009-2017
State Key Laboratory of Nuclear Physics and Technology
2010-2017
Institute of Earth Environment
2000-2006
Temper (United States)
2001
Institute of Mechanics
1985-1989
We conducted a source apportionment and investigated the atmospheric behavior of carbonaceous aerosols during hazy normal days using radiocarbon ((14)C) biomass burning/secondary organic aerosol (SOA) tracers winter in Guangzhou, China. Haze episodes were formed either abruptly by local emissions or through accumulation particles transported from other areas. The average contributions fossil carbon to elemental (EC), water-insoluble carbon, water-soluble 71 ± 10%, 40 6% 33 3%, respectively....
Samples of fine particulate matter (PM2.5) were collected during July 2009 to March 2010 at a regional background site in East China. The mass concentrations organic carbon (OC) and elemental (EC) characterized by the highest levels winter (December February) lowest abundances summer (June August). Conversely, levoglucosan higher than winter. observations associated anthropogenic air pollutions (predominantly fossil-fuel combustions) transport from center north China with northwest winds...
Abstract. Fine carbonaceous aerosols (CAs) is the key factor influencing currently filthy air in megacities China, yet few studies simultaneously focus on origins of different CAs species using specific and powerful source tracers. Here, we present a detailed apportionment for various fractions, including organic carbon (OC), water-soluble OC (WSOC), water-insoluble (WIOC), elemental (EC) secondary (SOC) largest cities North (Beijing, BJ) South China (Guangzhou, GZ), measurements radiocarbon...
10 Be and magnetic susceptibility have been measured in the top 12 m of a loess profile from Luochuan, Central China. Comparison concentration record with SPECMAP δ 18 O last 130 ka (Imbrie et al., 1984] results new time scale which is good agreement that Kukla al. [1990]. The calculated accumulation rates can be compared existing records dust falls Pacific deep sea sediments Antarctic ice cores. A simple model for flux demonstrates significant part signal palaeosol horizons due to situ...
Abstract Although particulate matter (PM)‐driven haze is a common phenomenon in many Chinese cities, studies on the sources of its key components, such as organic carbon (OC) and elemental (EC), are poorly constrained. In this study, PM with aerodynamic diameters less than 10 (PM ), 2.5 1 μm ) were collected at an urban site core city Pearl River Delta region summer 2013. The average , mass concentrations 109 ± 28.4, 57.7 15.0, 50.9 13.2 μg/m 3 respectively. A PM‐driven bloom‐decay process...
Abstract A large and sudden increase in radiocarbon ( 14 C) around AD 773 are documented coral skeletons from the South China Sea. The C increased by ~ 15‰ during winter remain elevated for more than 4 months, then dropped down within two forming a spike of 45‰ high late spring, followed smaller spikes. anomalies coincide with an historic comet collision Earth's atmosphere on 17 January 773. Comas known to have percent-levels nitrogen weight exposed cosmic radiation space. Hence they may be...
Research Article| December 01, 2014 Late Pliocene–Pleistocene expansion of C4 vegetation in semiarid East Asia linked to increased burning Bin Zhou; Zhou * 1Key Laboratory Surficial Geochemistry (Ministry Education), School Earth Sciences and Engineering, Nanjing University, 210046, China2State Key Isotope Geochemistry, Guangzhou Institute Chinese Academy Sciences, 510640, China *E-mails: zhoubinok@nju.edu.cn; cdshen@gig.ac.cn. Search for other works by this author on: GSW Google Scholar...
Abstract The food source of hadal endemic fauna provides an insight into the carbon cycle in trenches and a biological adaptation to impoverished harsh trench environment. Here, we present first Δ 14 C results amphipods from three Pacific define organic matter these remote ecosystems. Amphipod muscle tissues contain bomb signature (Δ 10 ± 2‰ 65 2‰), thereby revealing dietary preference for labile fresh derived surface water. Thus, deepest ocean has tight linkage with via chain. dating result...
Abstract. China experiences frequent and severe haze outbreaks from the beginning of winter. Carbonaceous aerosols are regarded as an essential factor in controlling formation evolution episodes. To elucidate carbon sources air pollution, source apportionment was conducted using radiocarbon (14C) unique molecular organic tracers. Daily 24 h PM2. 5 samples were collected continuously October 2013 to November 10 Chinese cities. The 14C results indicated that non-fossil-fuel (NF) emissions...
Abstract The Asia‐Pacific Economic Cooperation (APEC) summit took place in Beijing, China, 5–11 November 2014, during which numerous measures were performed to control the air pollution, and consequently, sky of Beijing was so clean that public called it “APEC blue.” concentrations before, during, after APEC are 14.4 ± 6.81 µg C/m 3 , 6.66 2.99 32.3 10.6 respectively, for organic carbon (OC), 2.27 1.17 0.76 0.52 4.99 1.74 elemental (EC). We quantify contributions fossil nonfossil sources OC...