Results 1 to 10 of about 1,847 (139)

Evaluation and Source of Heavy Metal Pollution in Surface Soils in Typical Alpine Agricultural Areas of Qinghai Province [PDF]

open access: yes, 2023
BACKGROUNDHeavy metal pollution in soils is often the result of multiple genetic sources and action paths. Simple identification of the sources of heavy metals is not enough to provide sufficient information for the control of regional heavy metal ...
Jianqiang LI   +5 more
core   +1 more source

A study on the absorption of cadmium and zinc in the water sediments with submerged plants(沉水植物对受重金属镉、锌污染的水体底泥的修复效果)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
为了探究常见沉水植物对水体底泥中重金属污染的富集效果,选取浙江水域较为常见的3种沉水植物苦草(Vallisneria natans (Lour.) Hara)、黑藻(Hydrilla verticillata (Linn. f.) Royle)、金鱼藻(Ceratophyllum demersum L.),在模拟天然水体环境中,将3种沉水植物培养在含有重金属Cd、Zn的底泥中生长一个生活周期.依据沉水植物对重金属Cd、Zn的富集量和生物-沉积物生物富集因子(biota-sediment ...
QIAOYunlei(乔云蕾)   +4 more
doaj   +1 more source

对苯二甲酸二甲酯及其异构体的好氧微生物降解 [PDF]

open access: yes, 2004
Five morphologically distinct bacteria isolated from mangrove sediment by enrichment culture, were identified and tested for their ability to degrade dimethyl terephthalate (DMT) and its isomer dimethyl isophthalate (DMI). DMT at a concentration of 98 mg/
Gu, J, Li, J
core   +8 more sources

Density Functional Theory‐Guided Design and Fabrication of Cu/g‐C3N4 Single‐Atom Catalysts for Efficient Nitrate Reduction to Ammonia

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The electrocatalytic reduction of nitrate (NO3ER) has emerged as a promising strategy for mitigating NO3− ${{\text{NO}}_{3}}^{-}$ pollution in wastewater while concurrently producing value‐added ammonia; however, its process is significantly hindered by the lack of highly efficient and low‐cost electrocatalysts. Herein, we proposed several non‐
Xue‐Shi Song   +5 more
wiley   +1 more source

Preliminary exploration of heavy metal accumulation in Agaricus bisporus [PDF]

open access: yes, 2016
随着工业化和城镇化的快速发展,越来越多的重金属污染物通过各种途径被释放到土壤等环境中。其不仅直接毒害土壤生物和植物,破坏生态结构,还可以通过食物链迁移转化,危害人体健康。究竟如何修复重金属污染是当前重要的环境问题。 本课题以人工培养的双孢蘑菇(Agaricusbisporus)AS2796为主要研究对象。对其以及杏鲍菇、茶树菇和秀珍菇菌丝体做不同浓度的重金属Pb、Cd和As胁迫处理,研究四种大型真菌重金属富集能力。检测结果表明双孢蘑菇较其他3个菌株而言,对Pb和Cd的富集能力更强。在1mg/L条件下 ...
张维友
core  

某铅锌冶炼厂废弃地复垦整理区土壤重金属污染评价

open access: yesShuitu Baochi Xuebao, 2006
对贵州省六盘水市某铅锌冶炼厂废弃地复垦整理区土壤中重金属Cu,Zn,Pb,Ni,Cd,Cr,Hg,As以及土壤部分理化性质进行了测定和分析,对土壤重金属污染状况进行了评价。结果表明:废弃地上堆放的铅锌冶炼矿渣中除Cu,Cr,Hg的含量较低、污染指数小于1之外,Zn,Pb,Ni,Cd,As的含量很高,其单项污染指数分别为2.95,45.14,1.00,10.67,50.41,综合污染指数高达36.98,属于剧烈污染源。项目区土壤综合污染指数在0.77~1.99之间 ...
何佳芳, 何腾兵
doaj   +2 more sources

Heavy metal pollution enhances pathogen resistance of an invasive plant species over its native congener

open access: yesFunctional Ecology, Volume 39, Issue 4, Page 1096-1111, April 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Many invasive plant species have demonstrated a better ability to tolerate and accumulate heavy metals than their co‐occurring native plants. Given the potential biological toxicity of heavy metals to phytopathogens, we postulated that heavy metal contamination could ...
Tiantian Lin   +7 more
wiley   +1 more source

The health risk assessment of heavy metal pollution of marine food in Xiamen market [PDF]

open access: yes, 2015
海产品味道鲜美、低脂、低胆固醇,是不可多得的健康食品,因此成为厦门居民餐桌上的常客。厦门地处东南沿海,海洋资源丰富,海产品的产量、居民的海产品消费量均位居全国前列。然而近年来包括厦门在内的我国近岸海域重金属污染情况的日益严峻将海产品的食用安全性推到了风口浪尖。鉴于此现状,本研究对厦门市售的4类12种海产品的典型重金属污染物铅(Pb)、镉(Cd)、铬(Cr)、总砷(As)进行监测和评价,同时对食用海产品的738名厦门市居民进行海产品膳食结构调查,利用美国环保署(EPA)推荐的健康风险评价模型 ...
闫双双
core  

The tale of the sea turtle flipper tagging technique, a global environmental impact assessment 海龟鳍状肢标记技术的全球性环境影响评估

open access: yesWildlife Letters, Volume 2, Issue 1, Page 44-59, March 2024.
The sea turtle flipper tagging technique: is a tenet management technique generating continuous scientific data worldwide since over a century. presents a very low risk of expression of a fibropapillomatosis lesion at the tag insertion point correlated to a direct inoculation of ChHV5 via infected tagging equipment, and a risk of entanglement in ...
Claire Saladin, Daniela Freggi
wiley   +1 more source

Study on speciation and distribution of heavy metals in surface sediments from Shacheng Bay, Dongshan Bay and the area east to Dongshan Island, Fujian Province [PDF]

open access: yes, 2015
沉积物中重金属污染问题备受关注,因为重金属具有生物毒性、难降解性和易累积性的特性,近岸沉积物是重金属的重要归宿。了解沉积物中重金属的含量、形态分布对于探寻近岸沉积物重金属的来源、评价污染现状及其生态风险具有重要的意义。 本研究以福建东山岛以东海域、东山湾及沙埕湾表层沉积物为研究对象,分析Cr、Co、Ni、Cu、Zn、Cd、Pb这7种重金属在三个研究海域表层沉积物的平面分布、来源、形态分布及其生物可利用性,并基于重金属总量和形态分析对研究区域的重金属污染水平和潜在生态风险进行了评价。结论如下 ...
杨丽虹
core  

Home - About - Disclaimer - Privacy