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Research on marine pollution Problems and Solutions in China from the Perspective of marine Tourism

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Journal of marine Science 2021年第1期3卷 19-28页

作者： Yuxiang Zheng Dandan Liu School of Economics and Management Shanghai Maritime UniversityShanghai 201306China

Based on the perspective of marine tourism,this paper integrates various types of marine pollution,and puts forward high-quality development solutions and future extension direction of marine *** the research,it is found that the main culprits of marine pollution mainly include the following seven points:human activities produce garbage;white pollution;ship pollution;exploration of marine oil and gas resources and mineral pollution;land reclamation;pollution in mariculture industry and new estrogen *** causes of marine pollution and countermeasures are discussed.

关键词： marine tourism marine pollution White pollution Restrictive bottleneck

A critical review of the emerging research on the detection and assessment of microplastics pollution in the coastal,marine,and urban Bangladesh

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Frontiers of Environmental Science & Engineering 2022年第10期16卷 39-52页

作者： Zaki Alam Pushan Ehsanur Rahman Nafisa Islam Nirupam Aich Department of Chemical Engineering Bangladesh University of Engineering and TechnologyDhaka 1000Bangladesh Department of Civil Environmentaland Geo-EngineeringUniversity of Minnesota-Twin CitiesMinneapolisMN 55455USA Department of Civil Structural and Environmental EngineeringUniversity at BuffaloThe State University of New YorkBuffaloNY 14260USA

The research on the extent and effects of microplastics pollution in the Global South is only getting *** is a South Asian country with one of the fastest growing economies in the world,however,such exponential economic growth has also increased the pollution threats to its natural and urban *** this paper,we reviewed the recent primary research on the assessment of the extent of microplastics pollution in *** online databases,we developed a compilation of emergingresearch articles that detected and quantified microplastics in different coastal,marine,and urban environments in *** of the studies focused on the coastal environment(e.g.,beach sediment)and marine fish,while limited data were available for the urban *** also discussed the relationship of the type of anthropogenic activities with the observed microplastic *** Cox's Bazar sea beach in south-east Bangladesh experienced microplastics pollution due to tourism activities,while fishing and other anthropogenic activities led to microplastics pollution in the Bay of *** microplastics larger than 1 mm were prevalent in the beach sediments,smaller microplastics with size below 0.5 mm were prevalent in marine fish ***,the differences m microplastic abundance,size,shape,color,and polymer type found were depended on the sampling sites and relevant anthropogenic *** is imperative to identify majorsources of microplastics pollution in both natural and urban environment,determine potential environmental and human health effects,and develop mitigating and prevention strategies for reducing microplastics pollution.

关键词： Plastic pollution Waste management Global south Sustainability marine pollution

Mesoscale eddies and their dispersive environmental impacts in the Persian Gulf

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Chinese Physics B 2020年第8期29卷 363-371页

作者： Amin Raeisi Abbasali Bidokhti Seyed Mohammad Jafar Nazemosadat Kamran Lari Faculty of Natural Resources and Environment Science and Research BranchIslamic Azad UniversityTehran ***Iran Geophysics Institute University of TehranTehran ***Iran Department of Water Engineering Oceanic and Atmospheric Research CenterShiraz UniversityShiraz ***Iran Department of Physical Oceanography Faculty of Marine Science and TechnologyTehran North BranchIslamic Azad UniversityTehran ***Iran

As the mesoscale eddies in oceans and semi-enclosed seas are significant in horizontal dispersion of pollutants,we investigate the seasonal variations of these eddies in the Persian Gulf(PG)that are usually generated due to seasonal winds and baroclinic *** sea surface height(SSH)data from 2010 to 2014 of AVISO are used to identify and track eddies,using the SSH-based *** seasonal horizontal dispersion coefficients are estimated for the PG,using the properties of *** results show an annual mean of 78 eddies with a minimum lifetime of one *** of the eddies are predominantly cyclonic(59.1%)and have longer lifetimes and higher diffusion coefficients than the anti-cyclonic *** eddy activity is higher in warm seasons,compared to that of cold *** locations with high eddy diffusion coefficients are high-risk areas by using maps of horizontal eddy diffusion coefficients,perilous times and locations of the release of pollutants are specified to be within the longitude from 51.38°E to 55.28°*** mentioned areas are located from the Strait of Hormuz towards the northeast of the PG,closer to Iranian ***,July can be considered as the most dangerous time of pollution release.

关键词： Persian Gulf mesoscale eddies marine pollution horizontal eddy diffusion coefficient

Radioactive source terms for the Fukushima nuclear accident

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Science China Earth Sciences 2016年第1期59卷 214-222页

作者： LIN WuHui CHEN LiQi YU Wen MA Hao ZENG Zhi ZENG Shi School of marine Seienee Guangxi University Nanning 530004China Laboratory of marine lsotopie Technology and Environmental Risk Assessment Third Institute of OceanographyXiamen 361005China Key Laboratory of Global Change and marine-Atmospheric Chemistry State Oceanic AdministrationXiamen 361005China Department of Engmeering Physics Tsinghua UniversityBeijing 100084China

A large amount of radioactivity was released into the environment after the Fukushima nuclear accident （FNA） in Japan in 2011. This radioactivity had a significant impact on the global environment, and there was much public concern about its effects. The subsequent assessment of the FNA and the environmental remediation required are proving to be long and complicated tasks. The assessments are based on the radioactive source terms for the FNA, which determine the level of damage caused by the nuclear accident. We investigated the radioactive source terms from three aspects： the amount and composition of the radionuclides; the activity and atomic ratio of the radionuclides; and comparison with other historical events. The total amount of radioactivity, excluding the radioactive noble gases （85Kr and 133Xe）, released by the FNA was about 10% of that released by the Chernobyl nuclear accident in 1986 and 〈1%o of the global fallout from the atmosphere nuclear explosion. However, the FNA was the most serious nuclear accident in terms of radioactive pollution of the marine environment. The recovery actions carried out after the FNA have been evaluated and the environmental impacts of the FNA are discussed.

关键词： Fukushima Nuclear Accident Chernobyl Nuclear Accident Global fallout Radioactivity Atmospheric pollution marine pollution

marine ciliate community in relation to eutrophication of coastal waters in the Yellow Sea

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Chinese Journal of Oceanology and Limnology 2011年第1期29卷 118-127页

作者：徐奎栋 CHOI Joong Ki 类彦立 YANG Eun Jin Institute of Oceanology Chinese Academy of Sciences Department of Oceanography Inha University Korea Polar Research Institute

We assessed the potential of marine ciliate community as an indicator to coastal water quality using water samples collected from four stations in thc Yellow Sea in the summer 2000. The four stations were characterized by different levels of pollution. The ciliate communities consisted primarily of tintinnids and aloricate ciliates that were 〈30 um. A total of 78 species were classified： 55 species at Station 2, 51 species each at Stations l and 4, and 47 species at Station 3. The mean number of species at each site was 29.2±2.0 （Station 1）, 28.5±2.9 （Station 2）, 27.8±1.7 （Station 3）, and 24.5±2.3 （Station 4）. The abundance was highly variable： 19 331±11 187 ind./L at Station 1, 7 960±5 639 ind./L at Station 2, 29 015±12 999 ind./L at Station 3, and 8 190±4 658 ind./L at Station 4. Our results suggest that neither the simple chemical analysis （e.g. chemical oxygen demand, dissolved inorganic nitrogen, and phosphate） nor the eutrophication/pollution index adequately described the water quality at the four stations. The same was true of the number of species and their abundance, both of which had no correlation with the chemical indices. In contrast, Margalef＇s diversity index values （3.12 at Station 2, 2.89 at Station 1, and 2.64 at Stations 3 and 4） generally discriminated the water quality status of the four stations. The difference in water quality among the stations was strongly supported by the pattern of species richness （i.e. the total number of species） of ciliates at each station. Our evaluation was consistent with the results of long-term water quality monitoring at the four stations. With increasing eutrophication, we observed also a compositional and functional shift in the ciliate assemblages from algivorous oligotrich/choreotrich to nonselective-omnivorous gymnostomatids to bacterivorous-detrivorous scuticociliatids. Thus, eiliates may be used to indicate the coastal water quality status of a given site.

关键词： biomonitoring chemical evaluation ciliates community structure eutrophication marine pollution

Oxidative stress responses to cadmium in the seedlings of a commercial seaweed Sargassum fusiforme

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Acta Oceanologica Sinica 2020年第10期39卷 147-154页

作者： Tiantian Zhang Minheng Hong Mingjiang Wu Binbin Chen Zengling Ma College of Life and Environmental Science Wenzhou UniversityWenzhou 325035China Zhejiang Provincial Key Laboratory for Subtropical Water Environment and marine Biological Resources Protection Wenzhou 325035China

Cadmium(Cd)is a common heavy metal pollutant in the aquatic environment,generally toxic to plant growth and leading to growth inhibition and biomass *** study the oxidation resistance in Sargassum fusiforme seedlings in response to inorganic Cd stress,we cultured the seedlings under two different Cd levels:natural seawater and high Cd *** Cd stress significantly inhibited the seedlings growth,and darkened the thalli ***,the pigment contents,growth rate,peroxidase(POD)activity,dehydroascorbic acid(DHA)content,and glutathione reductase(GR)activity in *** were significantly reduced by high Cd ***,the Cd accumulation,Cd2+absorption rate,dark respiration/net photosynthetic rate(Rd/Pn),ascorbic acid(Vc)content,soluble protein(SP)content,glutathione(GSH),and the activities of superoxide dismutase(SOD)and catalase(CAT)of *** under Cd treatment significantly increased compared to the control *** decrease of malondialdehyde(MDA)was not *** *** seedlings increased the antioxidant activities of POD,SOD,Vc,and the AsA-GSH cycle to disseminate H2O2 and maintain healthy metabolism,high Cd stress caused Cd accumulation in the stem and leaves of *** *** excessive Cd significantly restricted photosynthesis and reduced photosynthetic pigments in the seedlings,resulting in growth inhibition and deep morphological color,especially of the *** levels of Cd in seawater had toxic effects on commercial *** seedlings,and risked this edible seaweed for human food.

关键词： Sargassum fusiforme cadmium stress oxidation resistance photosynthesis aquaculture marine pollution

3-D observations of a red tide event in the offshore water along the western Guangdong coast

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Acta Oceanologica Sinica 2015年第1期34卷 159-161页

作者： XIE Lingling CHEN Qingxiang HU Jianyu ZHANG Shuwen YI Xiaofei CHEN Fajin DENG Rui DENG Xiaodong WANG Jing QI Yiquan Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction Technologies Guangdong Ocean University State Key Laboratory of marine Environmental Science Xiamen University Guangdong Key Laboratory for Urbanization and Geo-simulation School of Geography and PlanningSun Yat-sen University State Key Laboratory of Tropic Oceanography South China Sea Institute of OceanologyChinese Academy of Sciences

From November 24 to 26, 2014, a red tide event occurred in the offshore water off the Hailing Island located at the western Guangdong coast. The red tide appeared as pink strips distributed within 3 km in the offshore water and extended for about 10 km along the shoreline. During the flood tide, the pink seawater rushed to the beach with breaking waves, forming foam strips on the beach. Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction Technologies, Guangdong Ocean University, emergently responded to the event and organized three-dimensional observations from the air, onboard and on beach. The preliminary analyses of the cruise data and water samples indicate that the event was induced by non- toxic Noctiluca scintillans, of which the concentration reaches as high as 4 200 cells/L near the surface and 2600 cells/L at the bottom.

关键词： red tide Noctiluca scintillans marine pollution Hailing Island South China Sea

IMPACT OF DREDGED MATERIAL DISPOSAL ON ENVIRONMENT OF MUDDY COAST

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China Ocean Engineering 1990年第3期5卷 359-369页

作者： Yu, Zhiying Tang, Yinde Zhang, Yong Chen, Dechang Jin, Liu East China Normal Univ Shanghai China

Dredged materials in muddy port move and disperse so easily under the action of coastal hydrodynamics that the surrounding waters will be affected in various degrees if so large a quantity of sediments are dumped into the sea water. The physical, chemical and biological processes brought about by those dumped materials may affect the marine ecological equilibrium, marine resources exploration and human health. This paper presents the results of the investigation about the impact of the dredged material disposal on the coastal environment of Lianyungang. Most of capital contruction sediments are rarely polluted, which may be called as 'clear sediment'. The major impact of dredged material disposal is still in physical aspect. The influence on sea environment is different for different dredged materials and all of them are not regarded as the marine pollution sources.

关键词： Ecology Water pollution marine pollution

Current status and cause analysis of microplastic pollution in sea areas in China

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China Geology 2022年第1期5卷 160-170页

作者： Wei Xiong Xi Mei Bei-bei Mi Hao Yang Zong-zhu Han Yong Zhang Wen-chao Lu Qingdao Institute of marine Geology China Geological SurveyMinistry of Natural ResourcesQingdao 266071China College of marine Geosciences Ocean University of ChinaQingdao 266100China State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences(Wuhan)Wuhan 430074China China Geological Survey Ministry of Natural ResourcesBeijing 100037China

As a new type of pollutants in the marine environment,microplastics have attracted increasing attention from scientific researchers and environmental protection workers in China and ***,for the microplastic pollution in sea areas in China,there are a very limited number of studies on its current status and few reviews of research on the *** paper reviews the surveys and researches of microplastics in the Bohai Sea,the Yellow Sea,the East China Sea,the South China Sea,and main estuaries in China carried out in recent years and proposes an outlook for future work,aiming to provide research suggestions and solutions for ecological protection against microplastic pollution in sea areas in *** studies have shown that microplastics are widely distributed in water bodies and sediments in sea areas and major estuaries in *** Pearl River Estuary,in the South China Sea suffers the most serious microplastic pollution,followed by the Bohai *** contrast,the microplastic pollution in the Yellow Sea and the East China Sea is comparatively *** in sea areas in China are mainly fibrous and are concentrated in offshore areas with developed industry and a dense population(especially around estuaries and bays).In addition,they are widely affected by human activities,such as shipping,aquaculture,industry,and sewage *** the authors suggest unifying measurement units and research methods and developing related standard systems to carry out researches related to ***,this paper also suggests further deepening researches on both the source-sink process of microplastics and nanoscale microplastics while enhancing the development and implementation of related policies,aiming to promote researches and control of microplastics in sea areas in China.

关键词： Microplastic marine pollution Distribution pattern Environmental geological survey engineering Bohai Sea Yellow Sea East China Sea South China Sea