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一种聚乙烯塑料高效降解菌及其分离筛选方法和应用
专利
专利号: 2019107432297, 申请日期: 2019-11-26,
发明人:
涂晨
;
刘颖
;
周倩
;
骆永明
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  |  
浏览/下载:14/0
  |  
提交时间:2024/01/26
Large-river dominated black carbon flux and budget: A case study of the estuarine-inner shelf of East China Sea, China
期刊论文
SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 651, 页码: 2489-2496
作者:
Fang, Yin
;
Chen, Yingjun
;
Hu, Limin
;
Tian, Chongguo
;
Luo, Yongming
;
Li, Jun
;
Zhang, Gan
;
Zheng, Mei
;
Lin, Tian
浏览
  |  
Adobe PDF(2173Kb)
  |  
收藏
  |  
浏览/下载:598/311
  |  
提交时间:2020/07/08
Carbon cycle
Black carbon
Riverine discharge
Yangtze River
East China Sea
海洋和海岸环境微塑料污染与治理
专著
北京:科学出版社, 2019
作者:
骆永明
;
周倩
;
章海波
;
涂晨
收藏
  |  
浏览/下载:629/0
  |  
提交时间:2020/06/17
黄海桑沟湾水体及沉积物中微塑料污染特征研究
期刊论文
海洋环境科学, 2019, 卷号: 38, 期号: 2, 页码: 198-204
作者:
熊宽旭
;
赵新月
;
周倩
;
付传城
;
涂晨
;
李连祯
;
骆永明
收藏
  |  
浏览/下载:364/0
  |  
提交时间:2020/06/17
桑沟湾
微塑料
潮滩
丰度
空间分布
Sanggou bay
microplastics
tidal flats
abundance
spatial distribution
In recent years,research on microplastics pollution in the marine environment has been increasing,but studies on microplastics in water bodies and sediments of the bay under the influence of high-intensity human activities are still rarely reported. In this study,the pollution characteristics of microplastics in the wayer and sediments of Sanggou bay were investigated in December 2017,after the harvest of large-scale aquaculture,with the aim to study the effects of aquaculture activities and hydrodynamics on pollution characteristics and spatial distribution of microplastics in the bay. The results showed that the types of microplastics in the water and sediments of Sanggou bay were mainly fibers,fragments,films,foams and particles. The microplastic abundances in the water and sediments were 1.8 ~ 31.2 N/L,31.2 ~ 1246.8 N/kg,respectively. The average particle sizes of microplastics in water and sediments were 0.51 0.20 mm and 1.54 1.02 mm,respectively. The results of spatial distribution of microplastics in Sanggou bay showed that the high abundance area mainly appears in the inshore waters,and the abundance of microplastics tends to decrease from the inner areas of estuary to the outshore areas. The heterogeneity of microplastic abundance and spatial distribution in Sanggou bay is mainly affected by human activities such as aquaculture,living and shipping,as well as hydrodynamics. In the future,fine sampling and analysis are needed to fully understand the temporal and spatial distribution of microplastics pollution in the bay areas.
Sorption mechanisms of diphenylarsinic acid on ferrihydrite, goethite and hematite using sequential extraction, FTIR measurement and XAFS spectroscopy
期刊论文
Science of the Total Environment, 2019, 卷号: 669, 页码: 991-1000
作者:
Zhu M
;
Hu XF
;
Tu C
;
Zhang HB
;
Song F
;
Luo YM
;
Luo YM
收藏
  |  
浏览/下载:350/0
  |  
提交时间:2020/06/17
Diphenylarsinic acid (DPAA)
Sorption mechanism
Iron (hydr)oxides
Sequential extraction
FTIR
EXAFS
A red clay layer in soils of the Yellow River Delta: Occurrence, properties and implications for elemental budgets and biogeochemical cycles
期刊论文
Catena, 2019, 卷号: 172, 页码: 469–479
作者:
Li Y
;
Zhang HB
;
Fu CC
;
Tu C
;
Luo YM
;
Christie P
收藏
  |  
浏览/下载:247/0
  |  
提交时间:2020/06/17
Clay layer
Coastal zone
Elemental geochemistry
Yellow River Delta
The limited facilitating effect of dissolved organic matter extracted from organic wastes on the transport of titanium dioxide nanoparticles in acidic saturated porous media
期刊论文
Chemosphere, 2019, 卷号: 237, 页码: 124529
作者:
Zhang RC
;
Zhang HB
;
Tu C
;
Luo YM
收藏
  |  
浏览/下载:269/0
  |  
提交时间:2020/06/17
Dissolved organic matter (DOM)
Titanium dioxide nanoparticles (TiO2 NPs)
Transport
Molecular weight
SUVA
Concurrent ions
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.
土壤中二苯砷酸的吸附解吸、结合形态与代谢转化研究进展
期刊论文
生态环境学报, 2019, 卷号: 28, 期号: 12, 页码: 2447-2453
作者:
涂晨
;
路露露
;
朱濛
;
韦婧
;
刘颖
;
骆永明
浏览
  |  
Adobe PDF(1362Kb)
  |  
收藏
  |  
浏览/下载:810/319
  |  
提交时间:2020/07/08
二苯砷酸
吸附解吸
结合形态
代谢转化
铁还原
硫酸盐还原
Diphenylarsenic Acid
Adsorption-desorption
Binding Species
Metabolic Transformation
Iron Reduction
Sulfate Reduction