The Role of Rail Transit Systems in Reducing Energy and Carbon Dioxide Emissions: The Case of The City of Rio de Janeiro

One of the main results of the processes related to urbanization is the contamination of the adjacent water bodies. Inserted in this context, the Rodrigo de Freitas lagoon is situated in the south zone of the city of Rio de Janeiro. This ecosystem receives several inputs containing all sorts of pollutants, including heavy metals. The present work aimed to study the partitioning of heavy metals in the sediments of Rodrigo de Freitas and the influence of organic matter in this fractionation dynamic. The results of these analyses presented the contents of organic matter as an important metal-capturing agent. Fractionation of organic matter resulted in a predominance of humine. Heavy metal partitioning showed that the metals bound by the water-soluble phase have no significant concentrations. Special features such as, reducing sediment, high levels of organic matter and fine grain size have transformed this ecosystem in an effective deposit of pollutants, where heavy metals are not available in easily reactive fractions.

Download Full-text

Carbon dioxide emissions in OECD service sectors: the critical role of electricity use

Energy Policy ◽

10.1016/s0301-4215(98)00055-x ◽

1998 ◽

Vol 26 (15) ◽

pp. 1137-1152 ◽

Cited By ~ 23

Author(s):

Tom Krackeler ◽

Lee Schipper ◽

Osman Sezgen

Keyword(s):

Carbon Dioxide ◽

Carbon Dioxide Emissions ◽

Critical Role ◽

Electricity Use ◽

Service Sectors

Download Full-text

The role of the globalisation process on mitigation of carbon dioxide emissions of Latin American & Caribbean countries

Cadernos UniFOA ◽

10.47385/cadunifoa.v16i45.3374 ◽

2021 ◽

Vol 16 (45) ◽

Author(s):

Matheus Koengkan ◽

José Alberto Fuinhas

Keyword(s):

Carbon Dioxide ◽

Latin American ◽

Carbon Dioxide Emissions

Download Full-text

The concept of an integrated rail transit system in Radom with tram-trains

Transportation Overview - Przeglad Komunikacyjny ◽

10.35117/a_eng_18_07_05 ◽

2018 ◽

Vol 2018 (7) ◽

pp. 36-49

Author(s):

Paweł Wontorski

Keyword(s):

Transport System ◽

Rail Transport ◽

Dual System ◽

Rail Transit ◽

Transport Service ◽

Service Model ◽

Transit System ◽

Urban Rail ◽

The City

The article presents the concept of an integrated rail transport system in Radom, based on classical and dual-system trams, taking into account the role of regional rail in servicing urban and agglomeration transport. The development of the concept of the tram network in Radom was presented and then the analysis of the conditions for the development of urban rail transport was made. The article is a synthetic description of the author's version of the city transport service model, with an emphasis on the integration of various transport modes, as well as technical, operational and organizational aspects essential in planning the connection of the tram and railway layout in Polish conditions.

Download Full-text

Development of Low Carbon Cities: Assessment of Carbon Dioxide Emissions from Energy Facilities in Irkutsk City

Energy Systems Research ◽

10.38028/esr.2021.01.0002 ◽

2021 ◽

pp. 9-16

Author(s):

E. Maysyuk

Keyword(s):

Carbon Dioxide ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Carbon Dioxide Emissions ◽

Current Trend ◽

City Management ◽

Low Carbon ◽

Gas Emissions ◽

Urban Energy ◽

The City

Decrease in greenhouse gas emissions is a current trend in solving the climate change problems. The concept of low-carbon cities is extensively discussed nowadays. It aims to reduce greenhouse gas emissions through integrated mechanisms and measures, which comply with socio-economic development and city management. Since a considerable part of the population lives in cities, the utmost goal of the study is to analyze the situation with emissions of the main greenhouse gas, i.e., carbon dioxide, in the urban environment. The major sources of carbon dioxide emissions are stationary energy facilities of different capacities burning fuel. The paper considers the city of Irkutsk as an example of the populated area included in the study on low carbon cities under the auspices of the Social and Economic Commission for Asia and the Pacific of the UN - UNESCAP. The first stage of the studies involved assessing the current carbon dioxide emissions from energy facilities of the city through the calculation of carbon dioxide emissions from boiler houses and the city cogeneration plant for 1990. The findings revealed the potential of reducing carbon dioxide emissions from energy facilities in Irkutsk. The paper suggests the basic directions and measures to mitigate greenhouse gas emissions from the urban energy facilities.

Download Full-text

Construindo o Projeto Cuidadosamente: reflexão sobre a saúde mental dos graduandos de Enfermagem frente ao COVID-19

Revista de Saúde Coletiva da UEFS ◽

10.13102/rscdauefs.v10i1.5153 ◽

2020 ◽

Vol 10 (1) ◽

pp. 13

Author(s):

Natália Loureiro Rocha ◽

Alcilea Barbosa de Andrade Sora ◽

Alessandra Da Terra Lapa ◽

Daniele Durval Dos Santos

Keyword(s):

Nursing Students ◽

Social Isolation ◽

Rio De Janeiro ◽

Private University ◽

Support Network ◽

Levels Of Care ◽

Current Context ◽

The City ◽

Different Levels

O presente relato de experiência visa destacar a vivência dos autores na construção do Projeto Cuidadosamente em uma universidade privada localizada no município do Rio de Janeiro. Objetiva-se com esse estudo apontar a sua inserção prática, bem como, retratar a importância de um projeto desta magnitude no cuidado à saúde psíquica dos acadêmicos de enfermagem, principalmente no contexto atual de isolamento social pela pandemia de COVID-19. Conclui-se que a ação possibilita a construção de uma rede de apoio entre os próprios colegas de classe que estão experenciando as mesmas dificuldades com esse isolamento social e ameniza situações que possam maximizar ou desencadear algum tipo de transtorno mental, a exemplo de ansiedade e depressão, através de uma escuta qualificada, que é atribuição importante do enfermeiro nos diferentes níveis de assistência. Building the Project Mindfully: reflection on the mental health of nursing students in front of COVID-19The present experience report aims to highlight the authors’ experience in the construction of the Project Mindfully in a private university located in the city of Rio de Janeiro. The objective of this study is to point out its practical insertion, as well as, to portray the importance of a project of this magnitude in the care of the psychic health of nursing students, especially in the current context of social isolation by the pandemic of COVID-19. It is concluded that the action makes it possible to build a support network among the classmates themselves who are experiencing the same difficulties with this social isolation and alleviates situations that can maximize or trigger some type of mental disorder, such as anxiety and depression, through qualified listening, which is an important role of nurses at different levels of care.

Download Full-text

Characteristics of lime-hemp composite and its use in construction industry

Budownictwo i Architektura ◽

10.35784/bud-arch.1639 ◽

2015 ◽

Vol 14 (2) ◽

pp. 011-019

Author(s):

Przemysław Brzyski ◽

Stanisław Fic

Keyword(s):

Carbon Dioxide ◽

Construction Industry ◽

Carbon Dioxide Emissions ◽

Industrial Waste ◽

Plant Material ◽

Building Materials ◽

Hydrated Lime ◽

Construction Sector ◽

Industrial Hemp ◽

Reducing Energy

One of the solutions for reducing energy consumption and carbon dioxide emissions in the construction sector is the use of building materials which have a favorable environmental impact. This is possible to achieve by using plant material, e.g., industrial hemp, which absorb large amounts of carbon dioxide during the growth. Instead of cement as a binder there are used alternatively clay or lime modified with industrial waste in the form of pozzolans. The paper presents the possibility of using industrial hemp in the production of composite based on modified hydrated lime. It describes the basic properties of the sample composites such as compressive strength and thermal conductivity based on literature review. The article describes the way of preparing the mixture and the possibility of using the composite for the construction of walls using different techniques.

Download Full-text