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Microplastics in an agricultural soil following repeated application of three types of sewage sludge: A field study
期刊论文
ENVIRONMENTAL POLLUTION, 2021, 卷号: 289, 页码: 8
作者:
Yang, Jie
;
Li, Lianzhen
;
Li, Ruijie
;
Xu, Li
;
Shen, Yichen
;
Li, Simin
;
Tu, Chen
;
Wu, Longhua
;
Christie, Peter
;
Luo, Yongming
Adobe PDF(6754Kb)
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浏览/下载:894/383
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提交时间:2021/11/10
Microplastics
Repeated sludge application
Amended soil
Accumulation
Distribution characteristics
Abundance and morphology of microplastics in an agricultural soil following long-term repeated application of pig manure
期刊论文
ENVIRONMENTAL POLLUTION, 2021, 卷号: 272, 页码: 7
作者:
Yang, Jie
;
Li, Ruijie
;
Zhou, Qian
;
Li, Lianzhen
;
Li, Yuan
;
Tu, Chen
;
Zhao, Xinyue
;
Xiong, Kuanxu
;
Christie, Peter
;
Luo, Yongming
Adobe PDF(1980Kb)
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浏览/下载:916/467
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提交时间:2021/06/07
Accumulation
Farmland soil
Long-term fertilization
Microplastics
Morphology
Pig manure
Soil accumulation and chemical fractions of Cu in a large and long-term coastal apple orchard, North China
期刊论文
JOURNAL OF SOILS AND SEDIMENTS, 2020, 页码: 10
作者:
Fu, Chuancheng
;
Tu, Chen
;
Zhang, Haibo
;
Li, Yuan
;
Li, Lianzhen
;
Zhou, Qian
;
Scheckel, Kirk G.
;
Luo, Yongming
Adobe PDF(1319Kb)
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浏览/下载:561/191
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提交时间:2021/06/21
Accumulation
Chemical fraction
Coastal orchard
Soil
Copper
Planting duration
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:495/0
  |  
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.
Occurrence of red clay horizon in soil profiles of the Yellow River Delta: Implications for accumulation of heavy metals
期刊论文
JOURNAL OF GEOCHEMICAL EXPLORATION, 2017, 卷号: 176, 期号: SI, 页码: 120-127
作者:
Li, Yuan
;
Zhang, Haibo
;
Tu, Chen
;
Song, Fang
;
Luo, Yongming
;
Luo, YM (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China. ymluo@yic.ac.cn
Adobe PDF(1534Kb)
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浏览/下载:694/302
  |  
提交时间:2017/06/21
Yellow River Delta
Soil Profile
Red Clay Horizon
Heavy Metals
Geochemical Accumulation
Characteristics of cadmium uptake and membrane transport in roots of intact wheat (Triticum aestivum L.) seedlings
期刊论文
ENVIRONMENTAL POLLUTION, 2017, 卷号: 221, 页码: 351-358
作者:
Li, Lian-Zhen
;
Tu, Chen
;
Peijnenburg, Willie J. G. M.
;
Luo, Yong-Ming
;
Luo, YM (reprint author), 17 Chunhui Rd, Yantai 264003, Peoples R China. lianzhen.li@yic.ac.cn
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Adobe PDF(860Kb)
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浏览/下载:947/463
  |  
提交时间:2017/06/21
Ion-selective Microelectrodes
Heavy-metal Detoxification
Durum-wheat
Cd Accumulation
Corn Roots
Fluxes
Calcium
Ca2++
Plants
K++
Distribution of heavy metals in soils of the Yellow River Delta: concentrations in different soil horizons and source identification
期刊论文
JOURNAL OF SOILS AND SEDIMENTS, 2014, 卷号: 14, 期号: 6, 页码: 1158-1168
作者:
Li, Yuan
;
Zhang, Haibo
;
Chen, Xiaobing
;
Tu, Chen
;
Luo, Yongming
;
Christie, Peter
;
Luo, YM (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai 264003, Shandong, Peoples R China. ymluo@yic.ac.cn
浏览
  |  
Adobe PDF(451Kb)
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浏览/下载:734/300
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提交时间:2015/07/31
Heavy Metals
Metal Accumulation
Soil Profiles
Yellow River Delta