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Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2020, 卷号: 17, 期号: 6, 页码: 13
作者: Zang, Zhenfeng; Li, Yonghua; Li, Hairong; Guo, Zhaohui; Zhang, Ru

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收藏 | 浏览/下载：13/0 | 提交时间：2021/03/23

spatiotemporal variation Pb Zn smelting environmental release soil heavy metal pollution potential ecological risk assessment

Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2020, 卷号: 17, 期号: 6, 页码: 13
作者: Zang, Zhenfeng; Li, Yonghua; Li, Hairong; Guo, Zhaohui; Zhang, Ru

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收藏 | 浏览/下载：18/0 | 提交时间：2021/03/23

spatiotemporal variation Pb Zn smelting environmental release soil heavy metal pollution potential ecological risk assessment

食用蔬菜能吸收和积累微塑料 期刊论文 OAI收割
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

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收藏 | 浏览/下载：143/0 | 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.

A tiered experimental approach for characterization and silver release of silver-containing wound dressings 期刊论文 iSwitch采集
Journal of biomedical nanotechnology, 2018, 卷号: 14, 期号: 3, 页码: 564-574
作者: Xu, Liming; Bai, Ru; Cheng, Xiang; Shao, Anliang; Chen, Liang

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Silver-containing wound dressing Agnps Ag-ions Ag release properties Risk assessment

典型区域全氟烷基酸多介质传输与风险评价 学位论文 OAI收割
北京: 中国科学院大学, 2017
作者: 刘朝阳

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收藏 | 浏览/下载：97/0 | 提交时间：2018/06/28

Pfaas Pollution Pathway Pfaas Release Estimation 污染途径 Crop Bioaccumulation 排放估算 Risk assessment 作物富集风险评价

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收藏 | 浏览/下载：28/0 | 提交时间：2018/07/20

Pfos Pfoa Major Sources Transport Pathway Environmental Release Environmental Risk

Pollution pathways and release estimation of perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in central and eastern China 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2017, 卷号: 580, 页码: 1247-1256
作者: Baninla, Yvette; Liu, Zhaoyang; Lu, Yonglong; Wang, Pei; Wang, Tieyu

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收藏 | 浏览/下载：31/0 | 提交时间：2018/07/20

Pfos Pfoa Major Sources Transport Pathway Environmental Release Environmental Risk

2014年2月12日于田Ms7.3地震前后的微震活动集中区及对地震危险区的可能指示/Microseismic Concentration Areas before and after the February 12, 2014 Yutian Ms7.3 Earthquake and Possible Implication for Earthquake Risk Zone[J] 期刊论文 OAI收割
地震, 2015, 卷号: 35, 期号: 1, 页码: 11-16
作者: 胡朝忠; 陈丹; 杨攀新; 熊仁伟; 李长军

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地震危险区地震应变释放于田ms7.3地震 Earthquake Risk Seismic Strain Release The 2014 Yutian Ms7.3 Earthquake

Phosphorus Bioavailability and Release Potential Risk of the Sediments in the Coastal Wetland: A Case Study of Rongcheng Swan Lake, Shandong, China 期刊论文 OAI收割
CLEAN-SOIL AIR WATER, 2014, 卷号: 42, 期号: 7, 页码: 963-972
作者: Gao, Li; Zhang, Luhua; Shao, Hongbo

收藏 | 浏览/下载：26/0 | 提交时间：2015/07/30

Bioavailable P Lake water Release risk Sediment composition Wetland

Phosphorus sorption and desorption characteristics of wetland soils from a subtropical reservoir 期刊论文 OAI收割
MARINE AND FRESHWATER RESEARCH, 2010, 卷号: 61, 期号: 5, 页码: 507-512
作者: Liu, Wenzhi; Liu, Guihua; Li, Siyue; Zhang, Quanfa

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收藏 | 浏览/下载：19/0 | 提交时间：2017/04/13

Danjiangkou Reservoir inundation non-point source pollution release risk river regulation