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科研机构
地球环境研究所 [4]
北京大学 [3]
西安交通大学 [1]
西双版纳热带植物园 [1]
上海大学 [1]
湖南大学 [1]
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期刊论文 [12]
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Characterizations of PM2.5-bound organic compounds and associated potential cancer risks on cooking emissions from dominated types of commercial restaurants in northwestern China
期刊论文
CHEMOSPHERE, 2020, 卷号: 261, 页码: 9
作者:
Xu, Hongmei
;
Ta, Weiyuan
;
Yang, Lin
;
Feng, Rong
;
He, Kailai
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浏览/下载:80/0
  |  
提交时间:2020/12/30
Cooking emission
PM2.5
Organic markers
Carcinogenic risk
Commercial restaurants
Organic matter protection by kaolinite over bio-decomposition as suggested by lignin and solvent-extractable lipid molecular markers
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: Vol.647, 页码: 570-576
作者:
Li, Fangfang
;
Chang, Zhaofeng
;
Khaing, Kaythi
;
Zhou, Yuwei
;
Zhao, Haiyun
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  |  
浏览/下载:14/0
  |  
提交时间:2019/12/17
Molecular markers
Lignin-derived phenols
Solvent-extractable lipids
Organic matter decomposition
Organo-mineral complexes
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.
Chemical characterization of PM2.5 from a southern coastal city of China:applications of modeling and chemical tracers in demonstrationof regional transport
期刊论文
Environmental Science and Pollution Research, 2018, 卷号: 25, 期号: 21, 页码: 20591–20605
作者:
Zhou, Jiamao
;
Zhao, ZZ(Zhao, Zhuzi)
;
Cao, JJ(Cao, Junji)
;
Ho, Steven Sai Hang
;
Zhou, JM(Zhou, Jiamao)
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  |  
浏览/下载:39/0
  |  
提交时间:2018/09/27
Pm2.5
Chemical Composition
Aerosol Acidity
Regional Transport
Sanya
Organic Markers
Chemical characterization of PM2.5 from a southern coastal city of China: applications of modeling and chemical tracers in demonstration of regional transport
期刊论文
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2018, 卷号: 25, 期号: 21, 页码: 20591-20605
作者:
Zhou, Jiamao
;
Ho, Steven Sai Hang
;
Cao, Junji
;
Zhao, Zhuzi
;
Zhao, Shuyu
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  |  
浏览/下载:3/0
  |  
提交时间:2020/06/05
PM2,(5)
Chemical composition
Aerosol acidity
Regional transport
Sanya
Organic markers
Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2016, 卷号: 550, 期号: 2016, 页码: 961-971
作者:
Wang, Jingzhi
;
Han, Yongming
;
Wang, Gehui
;
Huang, Rujin
;
Shen, Zhenxing
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  |  
浏览/下载:17/0
  |  
提交时间:2018/10/29
Oc/ec
Organic Markers
Phthalate Esters
Guangzhou
Source Identification
Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2016, 卷号: 550, 期号: [db:dc_citation_issue], 页码: 961-971
作者:
Wang, Jingzhi
;
Ho, Steven Sai Hang
;
Ma, Shexia
;
Cao, Junji
;
Dai, Wenting
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  |  
浏览/下载:3/0
  |  
提交时间:2019/12/02
OC/EC
Phthalate esters
Guangzhou
Organic markers
Source identification
Can Coronene and/or Benzo(a)pyrene/Coronene ratio act as unique markers for vehicle emission?
期刊论文
environmental pollution, 2014
Shen, Guofeng
;
Chen, Yuanchen
;
Wei, Siye
;
Fu, Xiaofang
;
Ding, Aijun
;
Wu, Haisuo
;
Tao, Shu
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  |  
浏览/下载:7/0
  |  
提交时间:2015/11/10
Coronene
BaP/Coronene ratio
Vehicle emission markers
Residential biomass combustion
POLYCYCLIC AROMATIC-HYDROCARBONS
FINE-PARTICLE EMISSIONS
RESIDENTIAL WOOD COMBUSTION
CHEMICAL-CHARACTERIZATION
PARTICULATE MATTER
UNITED-STATES
FIREPLACE COMBUSTION
SIZE DISTRIBUTION
ORGANIC AEROSOL
RURAL CHINA
PBDEs as indicator chemicals of urbanization along an urban/rural gradient in South China
期刊论文
chemosphere, 2013
Sun, Jian-Lin
;
Chen, Zheng-Xia
;
Ni, Hong-Gang
;
Zeng, Hui
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2015/11/11
Polybrominated diphenyl ethers
Indicator chemicals
Urbanization
Surface sediment
Molecular markers
POLYBROMINATED DIPHENYL ETHERS
PEARL RIVER DELTA
PERSISTENT ORGANIC POLLUTANTS
POLYCYCLIC AROMATIC-HYDROCARBONS
ANTHROPOGENIC MOLECULAR MARKERS
FALCO-PEREGRINUS EGGS
FLAME RETARDANTS
SURFACE SEDIMENTS
COASTAL ENVIRONMENTS
TOKYO BAY
Sources of excess urban carbonaceous aerosol in the Pearl River Delta Region, China
期刊论文
大气环境, 2011
Zheng, Mei
;
Wang, Fu
;
Hagler, G. S. W.
;
Hou, Ximei
;
Bergin, Michael
;
Cheng, Yuan
;
Salmon, L. G.
;
Schauer, James J.
;
Louie, Peter K. K.
;
Zeng, Limin
;
Zhang, Yuanhang
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2015/11/12
Organic carbon
Source apportionment
Molecular markers
Chemical mass balance
The Pearl River Delta
EXTRACTABLE ORGANIC-COMPOUNDS
PARTICULATE AIR-POLLUTION
SOURCE APPORTIONMENT
HONG-KONG
PRD REGION
PM2.5
TRACERS
MATTER
PRIDE-PRD2004
QUALITY
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