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Reclamation of co-pyrolyzed dredging sediment as soil cadmium and arsenic immobilization material: Immobilization efficiency, application safety, and underlying mechanisms
期刊论文
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2024, 卷号: 370, 页码: 17
作者:
Liu, Qunqun
;
Sheng, Yanqing
;
Liu, Xiaozhu
;
Wang, Zheng
收藏
  |  
浏览/下载:1/0
  |  
提交时间:2024/11/15
Dredging sediment
Toxic metals
Resource utilization
Soil immobilization
Agricultural utilization
Biochar
Sequential washing and eluent regeneration with agricultural waste extracts and residues for facile remediation of meta-contaminated agricultural soils
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 835, 页码: 9
作者:
Yang, Shuai
;
Li, Yuan
;
Liu, Guo-ming
;
Si, Shao-cheng
;
Zhu, Xia
;
Tu, Chen
;
Li, Lian-zhen
;
Luo, Yong-ming
收藏
  |  
浏览/下载:333/0
  |  
提交时间:2023/01/11
Potentially toxic metals
Agricultural soils
Soil washing
Plant extracts
Waste eluent treatment
Sequential washing and eluent regeneration with agricultural waste extracts and residues for facile remediation of meta-contaminated agricultural soils
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 835, 页码: 9
作者:
Yang, Shuai
;
Li, Yuan
;
Liu, Guo-ming
;
Si, Shao-cheng
;
Zhu, Xia
;
Tu, Chen
;
Li, Lian-zhen
;
Luo, Yong-ming
收藏
  |  
浏览/下载:0/0
  |  
提交时间:2024/11/15
Potentially toxic metals
Agricultural soils
Soil washing
Plant extracts
Waste eluent treatment
Feasibility of a combined solubilization and eluent drainage system to remove Cd and Cu from agricultural soil
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 807, 页码: 10
作者:
Yang, Shuai
;
Li, Yuan
;
Si, Shaocheng
;
Liu, Guoming
;
Yun, Hao
;
Tu, Chen
;
Li, Lianzhen
;
Luo, Yongming
收藏
  |  
浏览/下载:293/0
  |  
提交时间:2022/06/16
Agricultural soil
Citric acid
Heavy metals
Washing
Regeneration
Pilot scale remediation
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
收藏
  |  
浏览/下载:536/0
  |  
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.
The accumulation of heavy metals in agricultural land and the associated potential ecological risks in Shenzhen, China
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2016, 卷号: 23, 期号: 2, 页码: 1428-1440
作者:
Wu, Jiansheng
;
Song, Jing
;
Li, Weifeng
;
Zheng, Maokun
;
Song, J (reprint author), Univ Hong Kong, Fac Architecture, Dept Urban Planning & Design, Hong Kong, Hong Kong, Peoples R China.
[email protected]
Adobe PDF(1844Kb)
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  |  
浏览/下载:523/128
  |  
提交时间:2016/04/24
Soil Heavy Metals
Agricultural Topsoil
Potential Ecological Risk
Principal Component Analysis
Pollution Sources
Shenzhen
China
Assessment of EDTA heap leaching of an agricultural soil highly contaminated with heavy metals
期刊论文
CHEMOSPHERE, 2014, 卷号: 117, 页码: 532-537
作者:
Hu, Pengjie
;
Yang, Bingfan
;
Dong, Changxun
;
Chen, Like
;
Cao, Xueying
;
Zhao, Jie
;
Wu, Longhua
;
Luo, Yongming
;
Christie, Peter
;
Wu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China.
[email protected]
浏览
  |  
Adobe PDF(349Kb)
  |  
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  |  
浏览/下载:938/425
  |  
提交时间:2015/07/31
Agricultural Soil
Amendment
Column Leaching
Ecological Risk
Edta
Field Leaching
Regulating Environmental Factors of Nutrients Release from Wheat Straw Biochar for Sustainable Agriculture
期刊论文
CLEAN-SOIL AIR WATER, 2013, 卷号: 41, 期号: 7, 页码: 697-701
作者:
Wei, Linin
;
Xu, Gang
;
Shao, Hongbo
;
Sun, Junna
;
Chang, Scott X.
Adobe PDF(258Kb)
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收藏
  |  
浏览/下载:400/118
  |  
提交时间:2016/04/12
Agricultural Bioresource Utilization
Environmental Management
Equilibration Time
Ionic Strength
Soil Fertility
Fugacity approach to evaluate the sediment-water diffusion of polycyclic aromatic hydrocarbons
期刊论文
JOURNAL OF ENVIRONMENTAL MONITORING, 2011, 卷号: 13, 期号: 6, 页码: 1589-1596
作者:
Wang, De-Gao
;
Alaee, Mehran
;
Byer, Jonathan
;
Liu, Yong-Jun
;
Tian, Chong-Guo
浏览
  |  
Adobe PDF(531Kb)
  |  
收藏
  |  
浏览/下载:1488/506
  |  
提交时间:2011/07/22
Persistent Organic Pollutants
Air-soil Exchange
Organochlorine Pesticides
Polychlorinated-biphenyls
Partition-coefficients
Aqueous Solubilities
Agricultural Soils
United-states
Soot Carbon
Pahs