检索结果-南通市图书馆

Metal-enriched nanoparticles and black carbon:A perspective from the Brazil railway system air pollution

Geoscience Frontiers 2021年第3期12卷 624-635页

作者： Bianca D.Lima Elba C.Teixeira James C.Hower matheus s.civeira Omar Ramírez Cheng-Xue Yang Marcos L.s.Oliveira Luis F.O.silva Postgraduate Program in Remote sensing and Meteorology Geosciences InstituteUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Research Department Fundação Estadual de Proteção Ambiental Henrique Luís RoesslerAv.Borges de Medeiros261Porto AlegreRS 90020–021Brazil Center for Applied Energy Research University of Kentucky2540 Research Park DriveLexingtonKY 40511USA Postgraduate Program in Mines Metallurgy and MaterialsUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Faculty of Engineering Environmental EngineeringUniversidad Militar Nueva GranadaKm 2 CajicáZipaquiráColombia Institute of Earth science China University of Geosciences(Beijing)29 Xueyuan RdHaidian DistrictChina Department of Civil and Environmental Universidad de la CostaCUCCalle 58#55-66BarranquillaAtlanticoColombia Universidad de Lima Departamento de Ingeniería civil y Arquitectura.Avenida Javier Prado Este 4600–Santiago de Surco 1503Peru

Having a better understanding of air pollutants in railway systems is crucial to ensure a clean public *** study measured,for the first time in Brazil,nanoparticles(NPs)and black carbon(BC)on two groundlevel platforms and inside trains of the Metropolitan Area of Porto Alegre(MAPA).An intense sampling campaign during thirteen consecutive months was carried out and the chemical composition of NPs was examined by advanced microscopy *** results showed that highest concentrations of the pollutants occur in colder seasons and influenced by variables such as frequency of the trains and passenger ***,internal and external sources of pollution at the stations were *** predominance of NPs enriched with metals that increase oxidative stress like Cd,Fe,Pb,Cr,Zn,Ni,V,Hg,sn,and Ba both on the platforms and inside trains,including Fe-minerals as hematite and magnetite,represents a critical risk to the health of passengers and employees of the *** interdisciplinary and multi-analytical study aims to provide an improved understanding of reported adverse health effects induced by railway system aerosols.

关键词： Nanoparticles Potential hazardous elements Environmental chemistry Human health Railway environment Indoor air quality

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Potential Changes in Net Primary Productivity and Carbon Input of Periurban Agroecosystems Treated with Biosolids in Buenos Aires, Argentina

引用

Pedosphere 2016年第1期26卷 98-107页

作者： Gabriela civeira Institute of soil science Instituto Nacional de Tecnología Agropecuaria

Biosolids application in periurban agroecosystems could mitigate climate change by sequestering C, while improving plant net primary production(NPP). Monitoring NPP is useful for studying ecological responses to human management. The values of NPP and C input in periurban agroecosystems are insufficient or missing. The objective was to use local databases to estimate NPP and C input in periurban areas(south, north and west) of Buenos Aires City, Argentina, using different biosolids application scenarios(low and high effects). The NPP varied with crop and vegetable types(P s) and wheat(Triticum aestivum) presenting the highest production, soybean(Glycine max) medium and sunflower(Helianthus annuus) the lowest. Tomato(Lycopersicon esculentum Mill.) presented the highest production in the south area(La Plata). West and north areas, where Vertic and Typic Argiudolls are the main soils, presented the lowest NPP and C input. According to the low and high effect scenarios,only vegetables presented significant differences(P s. Vegetables contributed with the highest proportion(> 70%) to NPP in both projected scenarios. For both scenarios, average C input by crops and vegetables presented similar proportions. Biosolids addition in periurban agroecosystems could be a viable practice to elevate NPP and C input.

关键词： application scenarios plant biomass sewage sludge periurban agriculture

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：