Air pollution in the last 50 years – From local to global

Fenger, J.

doi:10.1016/j.atmosenv.2008.09.061

Cited by 282 publications

(163 citation statements)

References 11 publications

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“…Outdoor pollution changed considerably the last 50 years [1], thus, it is crucial to assess the impact of outdoor pollution to the indoor one, as well as indoor pollutants since they threat the conservation and preservation of the collections [2].…”

Section: Introductionmentioning

confidence: 99%

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Chatoutsidou

Mašková

Ondráčková

et al. 2015

Building and Environment

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Please cite this article as: Chatoutsidou SE, Mašková L, Ondráčková L, Ondráček J, Lazaridis M, Smolík J, Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague, Building and Environment (2015), doi: 10.1016/j.buildenv.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A dynamic mass balance model was introduced taking account particle penetration from outdoors and indoor losses (deposition, ventilation). The model was used to determine deposition rate k and penetration efficiency P in 13 discrete size intervals. Model performance was evaluated using the coefficient of determination (R 2 ) by selecting different pairs of k and P. No unique solution found, thus, averaged values of k and P from the best correlated pairs were used to estimate infiltration factor. Good agreement between infiltration factor and I/O ratio confirmed that modeled k and P were well-estimated. The deposition rate was found to depend strongly on particle size with higher rates for ultrafine and coarse particles. Penetration efficiency, on the other hand, was not clearly related with particle size. The infiltration factor varied substantially with particle size with less effective removal for accumulation fraction (0.1-0.7 µm). Higher infiltration factor for ultrafine particles, compared to coarse particles, indicates that enrichment of the library at this size is caused by penetration from outdoors. On the other hand, human presence during visiting hours found to contribute significantly to coarse particles by increasing the indoor number concentration by a factor of 3, 3.2 and 2 during spring, summer and winter respectively.

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Section: Introductionmentioning

confidence: 99%

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Chatoutsidou

Mašková

Ondráčková

et al. 2015

Building and Environment

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“…Major cities in the world are facing increasingly serious urban air pollution problems which are reducing the quality of life for residents (Fenger, 2009;www.unep.org/urban environment/Issues/urban air.asp). A lot of attention has been given to urban ambient air quality, especially to the negative effects of urban air pollution on human health, climate change, visibility, etc.…”

Section: Introductionmentioning

confidence: 99%

Ambient air quality trends and driving factor analysis in Beijing, 1983–2007

Zhang

Ouyang

Miao

et al. 2011

Journal of Environmental Sciences

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“…A relevância do conceito "dispersão" para compreensão dos aspectos espaciais da dinâmica atmosférica foi especialmente reforçada, a fim de que os alunos percebessem que ações locais podem ter consequências globais [39][40]. Leituras preparatórias [41], notícias da mídia e imagens de satélite foram os recursos didáticos selecionados para as aulas 6-9.…”

Section: Coleta De Dadosunclassified

“…Deve-se ressaltar que os conceitos frequentes nem sempre foram utilizados pelos alunos para expressar ideias corretas pelo entendimento científico atual sobre as mudanças climáticas. Todos os conceitos que estão representados na nuvem de palavras são relevantes para explicar as mudanças climáticas, considerando-se o atual conhecimento científico relacionado com a dinâmica atmosférica e a dispersão de poluentes [39,40]. Por outro lado, somente com a análise do conteúdo semântico expresso pelas proposições,é possível verificar se os alunos compreendem de forma adequada as relações entre estes conceitos científicos.…”

Section: Análise Dos Conceitos Vizinhos (Cv)unclassified

Análise de vizinhança: uma nova abordagem para avaliar a rede proposicional de mapas conceituais

Cicuto

Correia

2012

Rev. Bras. Ensino Fís.

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A análise detalhada de Mapas Conceituais (MCs) pode revelar informações latentes que não são percebidas a partir da mera leitura do seu conjunto de proposições. O presente trabalho tem como objetivo propor a Análise de Vizinhança (AViz) como uma forma inovadora de avaliar os MCs obtidos em sala de aula. A seleção de um Conceito Obrigatório (CO) permite ao professor verificar como os alunos o relacionam com outros conceitos, os quais são classificados como Conceitos Vizinhos (CVs). As proposições estabelecidas entre o CO e os CVs são suficientes para indicar o nível de compreensão do aluno sobre o tema mapeado. MCs (n = 69) sobre mudanças climáticas formam o primeiro conjunto de dados empíricos que ratifica o potencial da AViz. O CO selecionado foi dispersão, a fim de avaliar se os alunos conseguem relacionar esse fenômeno físico com o caráter global desse problema ambiental. Os padrões identificados a partir da AViz sugerem que, apesar de serem submetidos a uma mesma sequência didática, nem todos os alunos conseguiram utilizar o CO de forma adequada. Isso pode ser explicado a partir da Teoria da Aprendizagem Significativa de David Ausubel, que destaca o papel fundamental dos conhecimentos prévios no processo de assimilação de novas informações. Palavras-chave: análise de vizinhança, conceito obrigatório, conceito vizinho, dispersão, ensino de ciências, ensino superior, mapas conceituais, mudanças climáticas.The deep analysis of Concept Maps (Cmaps) may reveal latent information that is not perceived from the simple reading of its propositional network. This paper proposes the Neighborhood Analysis (NeAn) as an innovative way to assess the Cmaps obtained in a classroom. The selection of a Compulsory Concept (CC) allows teachers to evaluate how the students relate it to other concepts, which are classified as Neighbor Concepts (NCs). The propositions established between the CC, and the NCs are enough to indicate the students' level of understanding on the mapped subject. Cmaps (n = 69) about climate change are the first set of empirical data that confirms the potential of NeAn. Dispersion was selected as CC in order to check whether students can relate this physical phenomenon with the global perspective of climate change. The patterns found from the NeAn suggest that, despite being exposed to the same didactic activities, some students could not use the CC properly. This may be explained from David Ausubel's learning theory, which stresses the critical role of prior knowledge in the assimilation process of new information.

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Air pollution in the last 50 years – From local to global

Cited by 282 publications

References 11 publications

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Modeling of the aerosol infiltration characteristics in a cultural heritage building: The Baroque Library Hall in Prague

Ambient air quality trends and driving factor analysis in Beijing, 1983–2007

Análise de vizinhança: uma nova abordagem para avaliar a rede proposicional de mapas conceituais

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