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Disclosing the ecological implications of heavy metal disturbance on the microbial N-transformation process in the ocean tidal flushing urban estuary
期刊论文
ECOLOGICAL INDICATORS, 2022, 卷号: 144, 页码: 12
作者:
Wang, Caixia
;
Ju, Jiujun
;
Zhang, Haikun
;
Liu, Pengyuan
;
Zheng, Qiusheng
;
Hu, Xiaoke
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浏览/下载:276/0
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提交时间:2022/11/07
Bacterial community
Heavy metal pollution
Estuary
Nitrogen transformation process
Environmental concerns
Development of soil phosphorus storage capacity for phosphorus retention/release assessment in neutral or alkaline soils
期刊论文
PLANT SOIL AND ENVIRONMENT, 2022, 页码: 9
作者:
Xu, Gang
;
Yue, Mengyu
;
Song, Jiawei
;
Chen, Xiaobing
;
Ren, Yuxuan
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浏览/下载:226/0
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提交时间:2022/08/13
macronutrient
accumulation
environmental risk
external phosphorus pollution
land uses
Quantitative assessment on soil concentration of heavy metal-contaminated soil with various sample pretreatment techniques and detection methods
期刊论文
ENVIRONMENTAL MONITORING AND ASSESSMENT, 2020, 卷号: 192, 期号: 12, 页码: 800
作者:
Pan, Fei
;
Zhu, Rilong
;
Pan, Dawei
;
Yu, Yong
;
Wang, Yeyao
;
Zhang, Linlin
;
Yu, Lei
;
Lin, Hailan
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Adobe PDF(953Kb)
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浏览/下载:671/372
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提交时间:2021/12/01
Heavy metal
Sample pretreatment
Determination method
Contamination assessment
Soil
Environmental pollution
Low pH in simulated acid rain promotes the toxicity of copper on the physiological performance in Sargassum horneri
期刊论文
PHOTOSYNTHETICA, 2020, 卷号: 58, 期号: 3, 页码: 853-861
作者:
Zhong, Z. H.
;
Qin, S.
;
Wang, Y.
;
Ma, C.
;
Liu, Z. Y.
Adobe PDF(1452Kb)
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浏览/下载:353/21
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提交时间:2021/06/21
environmental problem
metal pollution
photoprotective ability
photosynthetic apparatus
Sargassum beds
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:536/0
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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.
土壤—水环境中二苯砷酸污染及其修复研究进展
期刊论文
土壤学报, 2018, 卷号: 56, 期号: 2, 页码: 276-285
作者:
朱濛
;
骆永明
;
杨如意
;
周守标
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浏览/下载:230/0
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提交时间:2020/07/07
二苯砷酸
土壤—水环境污染
提取检测
吸附/解吸
迁移转化
物化/生物修复
Diphenylarsinic acid (DPAA)
Soil-water environmental pollution
Extraction and determination
Adsorption/desorption
Translocation and transformation
Physico-chemico/bio-remediation
重视土壤中微塑料污染研究 防范生态与食物链风险
期刊论文
中国科学院院刊, 2018, 卷号: 31, 期号: 10, 页码: 1021-1030
作者:
骆永明
;
周倩
;
章海波
;
潘响亮
;
涂晨
;
李连祯
;
杨杰
收藏
  |  
浏览/下载:346/0
  |  
提交时间:2020/06/17
微塑料
土壤
环境行为
复合污染
生态和食物链风险
监管和修复
microplastics, soil, environmental behavior, combination pollution, ecological and food chain risks, governance and remediation
Trace metals in surface sediments of the Taiwan Strait: geochemical characteristics and environmental indication
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2016, 卷号: 23, 期号: 11, 页码: 10494-10503
作者:
Gao, XL
;
Zhou, FX
;
Lui, HK
;
Lou, JY
;
Chen, CTA
;
Zhuang, W
;
Chen, CTA (reprint author), Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 804, Taiwan. xlgao@yic.ac.cn
;
ctchen@mail.nsysu.edu.tw
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Adobe PDF(1656Kb)
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浏览/下载:683/292
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提交时间:2016/10/08
Sequential Extraction
Chemical Fractionation
Environmental Assessment
Marginal Sea
Marine Pollution
Sediment Quality of the SW Coastal Laizhou Bay, Bohai Sea, China: A Comprehensive Assessment Based on the Analysis of Heavy Metals
期刊论文
PLOS ONE, 2015, 卷号: 10, 期号: 3, 页码: -
作者:
Gao, Xuelu
;
Zhuang, Wen
;
Chen, Chen-Tung Arthur
;
Zhang, Yong
;
Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China. xlgao@yic.ac.cn
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Adobe PDF(1178Kb)
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浏览/下载:646/197
  |  
提交时间:2015/07/31
Sequential Extraction Procedure
Acid-volatile Sulfide
Surface Sediments
Trace-metals
Pollution Status
Yellow Sea
Physicochemical Properties
Environmental-quality
Marine-sediments
South China
Assessment of heavy metal impact on sediment quality of the Xiaoqinghe estuary in the coastal Laizhou Bay, Bohai Sea: Inconsistency between two commonly used criteria
期刊论文
MARINE POLLUTION BULLETIN, 2014, 卷号: 83, 期号: 1, 页码: 352-357
作者:
Zhuang, Wen
;
Gao, Xuelu
;
Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remedia, 17 Chunhui Rd, Yantai 264003, Shandong, Peoples R China. xlgao@yic.ac.cn
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Adobe PDF(557Kb)
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浏览/下载:748/263
  |  
提交时间:2015/07/31
Marine Pollution
Environmental Surveys
Sediment Analysis
Coastal Zone
Geochemistry
China