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| 1 | Seasonal variations of sulfur aerosols at Zhongshan Station, East Antarctica显示文摘Observations of atmospheric methane-sulfonic acid(MSA) and non-sea-salt sulfate(nss-SO42-) from December 2010 to November 2011 at Zhongshan Station are presented in this paper. MSA and nss-SO42- average concentrations were 24.2 ± 37.9 ng·m-3(0.5–158.3 ng·m-3) and 53.0 ± 82.6 ng·m-3(not detected [n.d.]) – 395.4 ng·m-3), respectively. Strong seasonal variations of MSA and nss-SO42-, with maxima in austral summer and minima in winter, were examined. The high concentrations of sulfur compounds in December may be attributed the dimethyl sulfide(DMS) emissions from the marginal ice zone, when open water near the sampling site was important in impacting the sulfur species of January and February at Zhongshan Station. In austral winter, there was almost no phytoplanktonic activity in offshore waters, and atmospheric sulfur compounds likely had long-range transport sources. | ZHANG Miming CHEN Liqi LIN Qi WANG Yanmin | 2015 | Advances in Polar Science2015，26，3： | 2 |
| 2 | Effect of air masses motion on the rapid change of aerosols in marine atmosphere显示文摘The impact of air masses motion on marine aerosol properties was investigated using an on-board single particle mass spectrometer(SPAMS) deployed for the determination of single particle size resolved chemical composition over Southeast China Sea. Two aerosol blooms(E1 and E2) were observed during the cruise. High average particle number count occurred in E1(7320), followed by E2(5850), which was more than 100–150 times of the average particle number count during normal periods. Particles were classified as four major sources, including continental source, shipping source, marine source, and transport source based on the mass spectral similarity. Transport source was identified as those particles with high particle number count occurred only during aerosol bloom period. Three sub-types of EC-Ca, OC-Ca, and Al-rich were classified as transport source.EC-Ca was the dominant particles of the transport source, accounting for more than 70%of the total particles in aerosol bloom events. A uni-modal size distribution in the size range of 0.1–2.0 μm was observed during normal period, while a bimodal distribution with a tiny mode(<0.3 μm) and a coarse mode between 0.4 and 0.6 μm was present during aerosol bloom. The variation of aerosol source is consistent with air masses back trajectories, for the reason that most of the long-range air trajectories are from the ocean,while short air trajectories originate in the continental regions, which means that air masses have a significant impact on the aerosol physical–chemical properties along their tracks. | Jinpei Yan Qi Lin Miming Zhang Shuhui Zhao Liqi Chen | 2019 | Journal of Environmental Sciences2019，31，9： | 1 |
| 3 | Seasonal variations in aerosol compositions at Great Wall Station in Antarctica显示文摘High volume aerosol samplers at Great Wall Station in Antarctica were used to collect 73 aerosol samples between January 2012 and November 2013. The main ions in these aerosol samples, Cl-, NO3-, SO42-, Na+, K+, Ca2+, Mg2+, NH4+, as well as methane sulfonic acid, were analyzed using ion chromatography. Trace metals in these samples, including Pb, Cu, Cd, V, Zn, Fe, and Al, were determined by inductively-coupled plasma mass spectrometry. Results showed that sea salt was the main component in aerosols at Great Wall Station. Most ions exhibited significant seasonal variations, with higher concentrations in summer and autumn than in winter and spring. Variations in ions and trace metals were related to several processes(or sources), including sea salt emission, secondary aerosol formation, and anthropogenic pollution from both local and distant sources. The sources of ions and trace metals were identified using enrichment factor, correlation, and factor analyses. Clearly, Na+, K+, Ca2+, and Mg2+were from marine sources, while Cu, Pb, Zn, and Cd were from anthropogenic pollution, and Al and V were mainly from crustal sources. | ZHANG Yuanhui WANG Yanmin ZHANG Miming CHEN Liqi LIN Qi YAN Jinpei LI Wei LIN Hongmei ZHAO Shuhui | 2015 | Advances in Polar Science2015，26，3： | 1 |
| 4 | Current state of research on microplastics in the marine- atmosphere environment of the Arctic region显示文摘Microplastics,plastic particles smaller than 5 mm in size,are a growing source of environmental pollution.Microplastic pollution has been observed in situ in the remote Arctic,where it has been found in the land,sea,cryosphere,and atmosphere.This review summarizes the sample pretreatment techniques and analytical methods commonly used in microplastic research,as well as the pollution status of microplastics in the Arctic,their sources,and their effects on the environment.In the Arctic,the size distribution of microplastics is more inclined to small-scale aggregation,the shape of microplastics is mostly fibrous,with the proportion of fibers often accounting for more than 70%.There are marked differences among studies in terms of abundance and polymer composition,but polyester is generally dominant in seawater.Many microplastic particles are transported to the Arctic by ocean currents and rivers,but atmospheric transport and deposition are slowly being recognized as an important transport route.Sea ice is particularly important for the temporary storage,transport,and release of Arctic microplastics.The average storage of microplastics in sea ice was estimated to be approximately 6.1×108 items.Given their properties,microplastics can affect glacier melting,sea surface temperature changes,and even the carbon cycle.Urgent measures must be taken to improve research standards and overcome sampling difficulties in the Arctic region to achieve time continuity and large-scale distribution patterns of Arctic microplastics. | GONG Tianjiao XU Guojie CHEN Liqi ZHANG Miming | 2023 | Advances in Polar Science2023，34，4： | 0 |
| 5 | Marine biogenic aerosols and their effects on aerosol-cloud interactions over the Southern Ocean:a review显示文摘The Southern Ocean(SO)plays an important role in the global climate system.Changes in SO biogeochemistry and marine ecosystems may influence the distribution of atmospheric aerosols and clouds and impact the climate system.We reviewed current knowledge on the interactions between marine aerosols and clouds over the SO.We focused on marine primary and secondary organic aerosols and summarized their characteristics,processes and roles as cloud condensation nuclei and ice nuclei.We described in detail the interactions between the marine ecosystem,aerosols and clouds.We discussed marine productivity,formation of marine biogenic aerosols and interactions between aerosols,clouds and climate.We explored the impact of climate change on SO marine ecosystem productivity and aerosol-cloud-climate feedback.Marine biogenic aerosols could impact the radiation budget and oceanic low-level clouds over the SO.This study contributes towards an improved understanding of marine productivity,aerosol-cloud interactions and climate change in the SO.The SO may respond to climate change in varying degrees.More studies are urgently needed to support accurate forecasts of future changes in the SO. | XU Yifan XU Guojie CHEN Liqi ZHANG Miming | 2021 | Advances in Polar Science2021，32，3： | 0 |
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