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滨海湿地环境中微塑料表面性质及形貌变化 期刊论文
科学通报, 2021, 卷号: 66, 期号: 13, 页码: 1580-1591
作者:  周倩;  涂晨;  张晨捷;  章海波;  付传城;  李远;  李连祯;  熊宽旭;  徐笠;  骆永明
Adobe PDF(14272Kb)  |  收藏  |  浏览/下载：577/156  |  提交时间：2021/12/01
微塑料  盐沼  红树林  海岸带湿地  定位试验  表面变化  
土壤环境中微塑料污染:来源、过程及风险 期刊论文
土壤学报, 2021, 卷号: 58, 期号: 2, 页码: 281-298
作者:  杨杰;  李连祯;  周倩;  李瑞杰;  涂晨;  骆永明
Adobe PDF(4648Kb)  |  收藏  |  浏览/下载：1419/327  |  提交时间：2021/12/01
土壤环境  微塑料  环境风险  研究进展  重点方向  
低密度聚乙烯薄膜微塑料在黄河口海岸带环境中的风化特征 期刊论文
土壤学报, 2021, 卷号: 58, 期号: 2, 页码: 456-463
作者:  张晨捷;  涂晨;  周倩;  李连祯;  李远;  付传城;  潘响亮;  骆永明
Adobe PDF(8627Kb)  |  收藏  |  浏览/下载：427/167  |  提交时间：2021/12/01
黄河口  海岸带  LDPE薄膜  微塑料  风化  
环境中微塑料研究进展与展望 期刊论文
科学通报, 2021, 卷号: 66, 期号: 13, 页码: 1547-1562
作者:  骆永明;  施华宏;  涂晨;  周倩;  季荣;  潘响亮;  徐向荣;  吴辰熙;  安立会;  孙晓霞;  何德富;  李艳芳;  马旖旎;  李连祯
浏览  |  Adobe PDF(1556Kb)  |  收藏  |  浏览/下载：2772/989  |  提交时间：2021/12/01
微塑料  环境介质  环境行为  生态风险  
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
作者:  田媛;  涂晨;  周倩;  张晨捷;  李连祯;  田崇国;  宗政;  骆永明
浏览  |  Adobe PDF(1860Kb)  |  收藏  |  浏览/下载：774/278  |  提交时间：2020/07/08
微塑料  大气沉降  时空分布  沉降通量  渤海  
黄海桑沟湾潮滩塑料垃圾与微塑料组成和来源研究 期刊论文
海洋环境科学, 2020, 卷号: 39.0, 期号: 004, 页码: 529-536
作者:  赵新月;  熊宽旭;  周倩;  涂晨;  李连祯;  骆永明
浏览  |  Adobe PDF(7307Kb)  |  收藏  |  浏览/下载：398/136  |  提交时间：2021/06/16
潮滩  塑料垃圾  微塑料  组成  来源  
黄海桑沟湾潮滩塑料垃圾与微塑料组成和来源研究 期刊论文
海洋环境科学, 2020, 卷号: 39, 期号: 4, 页码: 529-536
作者:  赵新月;  熊宽旭;  周倩;  涂晨;  李连祯;  骆永明
浏览  |  Adobe PDF(7307Kb)  |  收藏  |  浏览/下载：301/142  |  提交时间：2021/12/01
潮滩  塑料垃圾  微塑料  组成  来源  
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: 4, 页码: 1401-1409
作者:  田媛;  涂晨;  周倩;  张晨捷;  李连祯;  田崇国;  宗政;  骆永明
浏览  |  Adobe PDF(1860Kb)  |  收藏  |  浏览/下载：414/195  |  提交时间：2021/12/01
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
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：304/0  |  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.  
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：493/0  |  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.