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小清河口闸控感潮河段As、Sb的时空分布特征及入海通量估算 期刊论文
海洋环境科学, 2020, 卷号: 39, 期号: 6, 页码: 895-901
作者:  蔡永兵;  孟凡德;  李飞跃;  谢越;  张华
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Xiaoqing river  tidal reach  arsenic  antimony  小清河  感潮河段  As  Sb  
近海环境中抗生素分析样品前处理技术的研究进展 期刊论文
色谱, 2020, 卷号: 38, 期号: 1, 页码: 95-103
作者:  吕敏;  陈令新
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抗生素  近海  前处理技术  综述  antibiotics  coastal  pretreatment techniques  review  The widespread and massive usage of antibiotics for the prevention and treatment of diseases in human and animals have resulted in their continuous discharge into the environment, and finally, into the coastal environment through various pathways. Accumulation of antibiotics in aquatic organisms poses a great threat to ecological and human health, especially because it facilitates the generation and spread of bacterial resistance. Given the diverse range of antibiotics with various features, as well as their presence at low concentrations in the environment, it is imperative to develop pretreatment techniques for antibiotics in various matrices. In this paper, the pretreatment methods proposed in recent decades for antibiotics in coastal water, sediment, and biota are summarized, with emphasis on commonly used methods such as solid-phase extraction, solid-liquid extraction, matrix solid-phase dispersion, and QuEChERS. Additionally, the potential factors influencing the extraction performance and clean-up efficiency are analyzed. The advantages and disadvantages of the methods and their development are finally discussed.  
入侵植物互花米草的资源化利用研究进展 期刊论文
中国生态农业学报(中英文), 2019, 卷号: 27, 期号: 12, 页码: 1870-1879
作者:  谢宝华, 路峰, 韩广轩
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入侵植物  互花米草  资源化利用  秸秆资源  药用价值  耐盐基因  Invasive plant  Spartina alterniflora  Resource utilization  Straw resource  Medicinal value  Salt tolerant gene  In China, Spartina alterniflora, an invasive alien plant species, covers an area of approximately 54 600 hectares. The total dry matter of the aboveground part of S. alterniflora is 7.5*10~5~1.15*10~6 tons per year. The control and utilization of S. alterniflora have received increasing attention. A combined utilization and control approach could produce simultaneous economic and ecological benefits. Studies of the utilization of S. alterniflora in China tended to focus on the direct utilization of straw, including its use as fuel, feed, and raw material. These methods of utilization were generally low-value. Possible high-value utilization includes the medicinal value of S. alterniflora and its salt-tolerant genes. In all the studies, the largest proportion (43%) of straw was utilized as fuel, whereas the smallest proportion (approximately 8%) was utilized for other purposes, such as fertilizer and for its salt-tolerant genes. Previous studies have focused on utilization technologies, but they have not looked at S. alterniflora collection technology and market promotion. In the future, attention should be paid to every link of the industry chain of S. alterniflora utilization, and cooperation between research institutions and enterprises is essential for the synchronous development of industry, education, and research.  
黄海桑沟湾水体及沉积物中微塑料污染特征研究 期刊论文
海洋环境科学, 2019, 卷号: 38, 期号: 2, 页码: 198-204
作者:  熊宽旭;  赵新月;  周倩;  付传城;  涂晨;  李连祯;  骆永明
收藏  |  浏览/下载：364/0  |  提交时间：2020/06/17
桑沟湾  微塑料  潮滩  丰度  空间分布  Sanggou bay  microplastics  tidal flats  abundance  spatial distribution  In recent years,research on microplastics pollution in the marine environment has been increasing,but studies on microplastics in water bodies and sediments of the bay under the influence of high-intensity human activities are still rarely reported. In this study,the pollution characteristics of microplastics in the wayer and sediments of Sanggou bay were investigated in December 2017,after the harvest of large-scale aquaculture,with the aim to study the effects of aquaculture activities and hydrodynamics on pollution characteristics and spatial distribution of microplastics in the bay. The results showed that the types of microplastics in the water and sediments of Sanggou bay were mainly fibers,fragments,films,foams and particles. The microplastic abundances in the water and sediments were 1.8 ~ 31.2 N/L,31.2 ~ 1246.8 N/kg,respectively. The average particle sizes of microplastics in water and sediments were 0.51 0.20 mm and 1.54 1.02 mm,respectively. The results of spatial distribution of microplastics in Sanggou bay showed that the high abundance area mainly appears in the inshore waters,and the abundance of microplastics tends to decrease from the inner areas of estuary to the outshore areas. The heterogeneity of microplastic abundance and spatial distribution in Sanggou bay is mainly affected by human activities such as aquaculture,living and shipping,as well as hydrodynamics. In the future,fine sampling and analysis are needed to fully understand the temporal and spatial distribution of microplastics pollution in the bay areas.  
碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究 期刊论文
海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82
作者:  李宝泉
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潮间带  大型底栖动物  碳氮稳定同位素  食源和营养级分析  采样部位选取  intertidal zone  macrobenthos  carbon and nitrogen stable isotopes  food sources and trophic levels study,sampling parts  The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes  when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.  
烟台牟平海洋牧场季节性低氧对大型底栖动物群落的生态效应 期刊论文
生物多样性, 2019, 卷号: 27, 期号: 2, 页码: 200-210
作者:  李宝泉
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低氧  群落结构  群落恢复  敏感种  机会种  hypoxia  community structure  community recovery  sensitive species  opportunistic species  Hypoxia is a common phenomenon in the world's oceans, especially in the shallow waters of coastal zones. Rates of hypoxia are increasing due to global climatic changes and anthropogenic activities. Hypoxia can cause mass mortality of marine animals and can have severe negative impacts on marine ecosystems. To better understand the effects of hypoxia on macrobenthic communities, a survey was carried out in the Muping Marine Ranch (Yantai) during June, August and September of 2016. Results showed that seasonal hypoxia led to changes in benthic community structure, especially in terms of species composition and dominant species. The dominant species were Polychaeta Lumbrinereis latreilli, Sternaspis scutata and Mollusca Endopleura lubrica in summer. The opportunistic species Lumbrinereis latreilli increased, whereas, sensitive species such as Leptomya minuta, Glycera chirori, Upogebia major, Pontocrates altamarimus, Eriopisella sechellensis decreased during the hypoxic period of August. Hypoxia also reduced biodiversity indices. The effect of hypoxia on abundance and biomass were not significant, mainly because of the increase in the opportunistic Lumbrinereis latreilli, which counteracted the decline in abundance and biomass of other species. Individual physiological tolerance to hypoxia was different among species. Lumbrinereis latreilli showed higher tolerance to hypoxia in dissolved oxygen (DO) = 1.0 mg/L compared to other species. Some sensitive species, such as Leptomya minuta, Upogebia major, Pontocrates altamarimus and Eriopisella sechellensis showed lower tolerance when DO < 2.5 mg/L. When DO increased to 2.5 mg/L, the macrobenthic community start to recover gradually. The recovery extent and time needed were closely related to the degree of seasonal hypoxia.  
食用蔬菜能吸收和积累微塑料 期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
收藏  |  浏览/下载：536/0  |  提交时间：2020/06/17
微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.  
新型铁铜锰复合氧化物颗粒吸附剂As(Ⅲ)吸附行为与机制研究 期刊论文
环境科学学报, 2019, 卷号: 39, 期号: 8, 页码: 2575-2585
作者:  王建燕;  张传巧;  陈静;  张高生
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颗粒吸附剂  铁铜锰复合氧化物  吸附  氧化  再生  As(ⅲ)  Granular Sorbent  Fe-cu-mn Trimetal Oxide  Arsenite  Sorption  Oxidation  Regeneration  
多功能吸附材料——钛锰复合氧化物的制备及砷、铅吸附行为研究 学位论文
, 北京: 中国科学院大学, 2015
作者:  张伟
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钛锰复合氧化物  吸附  As(v)  As(Iii)  Pb  去除机理  
Comparison of elemental and black carbon measurements during normal and heavy haze periods: implications for research 期刊论文
ENVIRONMENTAL MONITORING AND ASSESSMENT, 2014, 卷号: 186, 期号: 10, 页码: 6097-6106
作者:  Zhi, Guorui;  Chen, Yingjun;  Xue, Zhigang;  Meng, Fan;  Cai, Jing;  Sheng, Guoying;  Fu, Jiamo;  Chen, YJ (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol, 17 Chunhui Rd, Yantai 264003, Shandong, Peoples R China. yjchen@yic.ac.cn
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Elemental Carbon  Black Carbon  Heavy Haze  Enhanced Absorption Efficiency  Ec As Indicator