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浏览/检索结果: 共17条，第1-10条 帮助

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Hidden dangers: High levels of organic pollutants in hadal trenches 期刊论文  OAI收割
WATER RESEARCH, 2024, 卷号: 251, 页码: 13
作者:  Xie, Jingqian;  Chen, Chuchu;  Luo, Min;  Peng, Xiaotong;  Lin, Tian
  |  收藏  |  浏览/下载：17/0  |  提交时间：2024/04/03
Investigation on the difference of PM2.5 transport flux between the North China Plain and the Sichuan Basin 期刊论文  OAI收割
ATMOSPHERIC ENVIRONMENT, 2022, 卷号: 271
作者:  Zhang, Zhida;  Wang, Xiaoqi;  Cheng, Shuiyuan;  Guan, Panbo;  Zhang, Hanyu
  |  收藏  |  浏览/下载：19/0  |  提交时间：2022/12/23
Intracellular signaling pathway in dendritic cells and antigen transport pathway in vivo mediated by an OVA@DDAB/PLGA nano-vaccine 期刊论文  OAI收割
Journal of Nanobiotechnology, 2021, 卷号: 19, 期号: 1
作者:  Han,Shulan;  Ma,Wenyan;  Jiang,Dawei;  Sutherlin,Logan;  Zhang,Jing
  |  收藏  |  浏览/下载：43/0  |  提交时间：2022/06/15
Quantitative evaluation of transport efficiency of fault-reservoir composite migration pathway systems in carbonate petroliferous basins 期刊论文  OAI收割
ENERGY, 2021, 卷号: 222, 页码: 14
作者:  Wang, Wenyang;  Pang, Xiongqi;  Chen, Zhangxin;  Chen, Dongxia;  Wang, Yaping
  |  收藏  |  浏览/下载：50/0  |  提交时间：2021/10/19
Distribution and ecological risk of substituted and parent polycyclic aromatic hydrocarbons in surface waters of the Bai, Chao, and Chaobai rivers in northern China 期刊论文  OAI收割
ENVIRONMENTAL POLLUTION, 2020, 卷号: 257, 页码: 1-11
作者:  Qiao, Meng;  Fu, Lujing;  Li, Zhuorong;  Liu, Dongqing;  Bai, Yaohui
  |  收藏  |  浏览/下载：21/0  |  提交时间：2021/09/15
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
  |  收藏  |  浏览/下载：142/0  |  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.  
Age-related changes of leaf traits and stoichiometry in an alpine shrub (Rhododendron agglutinatum) along altitudinal gradient (vol 14, pg 106, 2017) 期刊论文  OAI收割
JOURNAL OF MOUNTAIN SCIENCE, 2017, 卷号: 14, 期号: 3, 页码: 610-610
作者:  Liu Guo-hua;  Wang Meng
  |  收藏  |  浏览/下载：28/0  |  提交时间：2018/07/20
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
  |  收藏  |  浏览/下载：30/0  |  提交时间：2018/07/20
Characteristics of aerosol size distribution and vertical backscattering coefficient profile during 2014 APEC in Beijing 期刊论文  OAI收割
ATMOSPHERIC ENVIRONMENT, 2017, 卷号: 148, 期号: 无, 页码: 30-41
作者:  Zhang, Jiaoshi;  Chen, Zhenyi;  Lu, Yihuai;  Gui, Huaqiao;  Liu, Jianguo
收藏  |  浏览/下载：40/0  |  提交时间：2018/05/04
Exceptionally High Rates of Biological Hydrogen Production by Biomimetic In Vitro Synthetic Enzymatic Pathways 期刊论文  OAI收割
CHEMISTRY-A EUROPEAN JOURNAL, 2016, 卷号: 22, 期号: 45, 页码: 16047-16051
作者:  Kim, Eui-Jin;  Wu, Chang-Hao;  Adams, Michael W. W.;  Zhang, Y. -H. Percival
收藏  |  浏览/下载：44/0  |  提交时间：2017/03/13