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烟台海岸带研究所 [7]
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Tire wear particles: An emerging threat to soil health
期刊论文
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 2022, 页码: 19
作者:
Ding, Jing
;
Lv, Min
;
Zhu, Dong
;
Leifheit, Eva F.
;
Chen, Qing-Lin
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浏览/下载:21/0
  |  
提交时间:2022/08/13
Tire wear particles
emerging contaminant
soil health
plant-soil system
soil fauna
Jorg Rinklebe and Lena Ma
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
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  |  
浏览/下载:63/0
  |  
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.
Importance of Considered Organic Versus Inorganic Source of Carbon to Lakes for Calculating Net Effect on Landscape C Budgets
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2018, 卷号: 123, 期号: 4, 页码: 1302-1317
作者:
Lu, Weiqi
;
Wang, Shilu
;
Yeager, Kevin M.
;
Liu, Fang
;
Huang, Qiangsheng
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  |  
浏览/下载:21/0
  |  
提交时间:2020/07/08
RIPARIAN-STREAM CONTINUUM
BOREAL LAKES
SOIL RESPIRATION
GUIZHOU PROVINCE
UNITED-STATES
CO2 EMISSIONS
INLAND WATERS
ARCTIC LAKES
CATCHMENT
FLUXES
The ecological adaptability of Phragmites australis to interactive effects of water level and salt stress in the Yellow River Delta
期刊论文
AQUATIC ECOLOGY, 2017, 卷号: 51, 期号: 1, 页码: 107-116
作者:
Guan, Bo
;
Yu, Junbao
;
Hou, Aixin
;
Han, Guangxuan
;
Wang, Guangmei
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  |  
浏览/下载:24/0
  |  
提交时间:2017/06/21
Phragmites australis
Ion content
Biomass
Salt stress
Water table
Phototrophic periphyton techniques combine phosphorous removal and recovery for sustainable salt-soil zone
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2016, 卷号: 568, 页码: 838-844
作者:
Lu, HY
;
Feng, YF
;
Wu, YH
;
Yang, LZ
;
Shao, HB
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  |  
浏览/下载:25/0
  |  
提交时间:2016/10/20
P removal mechanism
Periphyton
Bioadsorption
Co-precipitation
P recovery
Heavy Metal Pollution in Sediments from Aquatic Ecosystems in China
期刊论文
CLEAN-SOIL AIR WATER, 2013, 卷号: 41, 期号: 9, 页码: 878-882
作者:
Zhang, Liwen
;
Shao, Hongbo
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  |  
浏览/下载:28/0
  |  
提交时间:2016/04/12
Industrial park
Industry type
Potential risk
Waste management
Potential Retention and Release Capacity of Phosphorus in the Newly Formed Wetland Soils from the Yellow River Delta, China
期刊论文
CLEAN-SOIL AIR WATER, 2012, 卷号: 40, 期号: 10, 页码: 1131-1136
作者:
Sun, Junna
;
Xu, Gang
;
Shao, Hongbo
;
Xu, Shaohui
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  |  
浏览/下载:19/0
  |  
提交时间:2013/03/08
Fe- & Al-oxides
Fluvo-aquic soil
Seaside wetland
Sorption-Desorption
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