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环渤海海岸大气微塑料污染时空分布特征与表面形貌 期刊论文
环境科学学报, 2020, 卷号: 40, 期号: 04, 页码: 1401-1409
Authors:  田媛;  涂晨;  周倩;  张晨捷;  李连祯;  田崇国;  宗政;  骆永明
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微塑料  大气沉降  时空分布  沉降通量  渤海  
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
Authors:  熊宽旭;  赵新月;  周倩;  付传城;  涂晨;  李连祯;  骆永明
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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.  
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
Authors:  李连祯;  周倩;  尹娜;  涂晨;  骆永明
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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.  
海岸环境中两类软质微塑料表面生物膜DNA的提取方法比较与优化 期刊论文
海洋学报, 2018, 卷号: 40, 期号: 12, 页码: 112-119
Authors:  陈涛;  涂晨;  郭鹏鹏;  周倩;  骆永明
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微塑料  生物膜  DNA  聚乙烯薄膜(PE)  发泡类聚苯乙烯(EPS)  
滨海河口潮滩中微塑料的表面风化和成分变化 期刊论文
科学通报, 2018, 卷号: 63, 期号: 02, 页码: 214-224
Authors:  周倩;  章海波;  周阳;  代振飞;  李远;  付传城;  涂晨;  王文海;  骆永明
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微塑料  河口潮滩  方法学  表面风化  成分变化  
重视土壤中微塑料污染研究 防范生态与食物链风险 期刊论文
中国科学院院刊, 2018, 卷号: 31, 期号: 10, 页码: 1021-1030
Authors:  骆永明;  周倩;  章海波;  潘响亮;  涂晨;  李连祯;  杨杰
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微塑料  土壤  环境行为  复合污染  生态和食物链风险  监管和修复  microplastics, soil, environmental behavior, combination pollution, ecological and food chain risks, governance and remediation  
滨海城市大气环境中发现多种微塑料及其沉降通量差异 期刊论文
科学通报, 2017, 卷号: 62, 期号: 33, 页码: 3902-3909
Authors:  周倩;  田崇国;  骆永明
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microplastics  coastal city  atmospheric environment  shape types  deposition flux  seasonal variation  微塑料  滨海城市  大气环境  形貌类型  沉降通量  季节性变化  
重视海岸及海洋微塑料污染加强防治科技监管研究工作 期刊论文
中国科学院院刊, 2016, 卷号: 31, 期号: 10, 页码: 1182-1189
Authors:  章海波;  周倩;  周阳;  涂晨;  骆永明
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微塑料  近岸海域  研究方向  管理策略  
滨海潮滩土壤中微塑料的分离及其表面微观特征 期刊论文
科学通报, 2016, 卷号: 61, 期号: 14, 页码: 1604-1611
Authors:  周倩;  章海波;  周阳;  李远;  薛勇;  付传城;  涂晨;  骆永明;  章海波,骆永明 E-mail: hbzhang@yic.ac.cn;  ymluo@yic.ac.cn
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微塑料污染  表面微形貌  丰度  连续流动-气浮分离  海岸带土壤  
海岸环境中微塑料污染及其生态效应研究进展 期刊论文
科学通报, 2015, 卷号: 60, 期号: 33, 页码: 3210-3220
Authors:  周倩;  章海波;  李远;  骆永明
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微塑料  海岸环境  复合污染  生态效应