Atmospheric Pollutants
Mostrando 1-12 de 64 artigos, teses e dissertações.
-
1. GASES DE NITROGÊNIO REATIVO COMO PRECURSORES DO AEROSSOL ATMOSFÉRICO: REAÇÕES DE FORMAÇÃO, PROCESSOS DE CRESCIMENTO E IMPLICAÇÕES AMBIENTAIS
The increased emissions of reactive nitrogen gases from anthropogenic sources to the atmosphere has been pointed out as responsible for triggering a series of environmental problems at the local, regional, and global scale. Among the many consequences associated with the excess of reactive nitrogen in the environment is the increase of atmospheric aerosol fo
Quím. Nova. Publicado em: 2021-04
-
2. Influence of air pollutants on pneumonia hospitalizations among children in a town in the Brazilian Legal Amazon region: a time series study
ABSTRACT BACKGROUND: Exposure to particulate material produced as a result of increased agricultural activity may increase the number of pneumonia hospitalizations among children. We hope to contribute to the knowledge base through highlighting the environmental mechanisms involved in this outcome and optimizing pollutant control policies. OBJECTIVES: To
Sao Paulo Med. J.. Publicado em: 2020-03
-
3. Apresentação
ABSTRACT BACKGROUND: Exposure to particulate material produced as a result of increased agricultural activity may increase the number of pneumonia hospitalizations among children. We hope to contribute to the knowledge base through highlighting the environmental mechanisms involved in this outcome and optimizing pollutant control policies. OBJECTIVES: To
Trans/Form/Ação. Publicado em: 2020-03
-
4. Method to assess the atmospheric pollutant emissions generated by railway track maintenance
Abstract Paper aims Propose a method to calculate and evaluate the pollutants emissions generated by the track maintenance process considering the life cycle of the three components: ballast, sleepers and rail. Originality After the literature review, we did not find any published research that quantifies, in an integrated way, the atmospheric pollutants e
Prod.. Publicado em: 13/12/2019
-
5. Impacto da queima da cana-de-açúcar sobre internações hospitalares por doenças respiratórias
Resumo O objetivo deste artigo é avaliar o impacto das emissões da queima da cana-de-açúcar sobre o número de internações hospitalares por doenças respiratórias em uma região canavieira. Registros de internações hospitalares por doenças respiratórias foram adquiridas a partir da base de dados referentes ao sistema de informações hospitalares
Ciênc. saúde coletiva. Publicado em: 28/10/2019
-
6. Clean air matters: an overview of traffic-related air pollution and pregnancy
ABSTRACT The right to a healthy pregnancy and to giving birth in a safe environment is source of comprehensive research. Decent birth facilities, respect, and no discrimination are already recognized as fundamental rights, but an accurate look at the outdoor environment is required. Air pollution is a dangerous factor to pregnant women and newborns, many of
Rev. Saúde Pública. Publicado em: 16/02/2017
-
7. Association between NOx exposure and deaths caused by respiratory diseases in a medium-sized Brazilian city
Exposure to nitrogen oxides (NOx) emitted by burning fossil fuels has been associated with respiratory diseases. We aimed to estimate the effects of NOx exposure on mortality owing to respiratory diseases in residents of Taubaté, São Paulo, Brazil, of all ages and both sexes. This time-series ecological study from August 1, 2011 to July 31, 2012 used infor
Braz J Med Biol Res. Publicado em: 29/09/2015
-
8. VARIACIÓN DE LA ESTABILIDAD Y ALTURA DE LA CAPA DE MEZCLA EN LA CIUDAD DE PINAR DEL RÍO. SU RELACIÓN CON CONDICIONES SINÓPTICAS
The study was carried out in the city of Pinar del Rio in Cuba during the period 2006-2010, where the behavior of atmospheric stability and the mixing height was analyzed. For obtaining the category of atmospheric stability the classification according to the Monin -Obukhov length was used. The methodology for calculating the mixing height was based on the p
Rev. bras. meteorol.. Publicado em: 2015-03
-
9. Effects of atmospheric pollutants on somatic and germ cells of Tradescantia pallida (Rose) D.R. HUNT cv. purpurea
As alterações anatômicas em folhas e danos no DNA de células causadas pelo acúmulo de poluentes atmosféricos podem ser mensuradas por meio de análises de epiderme foliar e ensaio de micronúcleos em Tradescantia com células de pólen jovens. O presente estudo examinou a viabilidade do uso de células somáticas e germinativas de Tradescantia pallida
An. Acad. Bras. Ciênc.. Publicado em: 2014-12
-
10. Method for determining the photocatalytic potential of portland cement mortar containing TiO2 for decomposing the pollutant nitrogen monoxide
Photocatalytic materials can minimize atmospheric pollution by decomposing certain organic and inorganic pollutants using sunlight as an energy source. In this paper, the development of a methodology to measure the photocatalytic potential of mortar containing TiO2 nanoparticles is reported. The results indicate that up to 40% of NOx can be degraded by Portl
Quím. Nova. Publicado em: 2014-07
-
11. Particulate matter in the indoor environment of museums in the megacity of São Paulo
Atmospheric pollutants can have serious impacts on the preservation of São Paulo's tangible cultural heritage. The purpose of this paper is to report the results of a monitoring campaign focussed on particulate matter (PM) that was conducted in three of the most important museums of the São Paulo megacity (Brazil): the Museu de Arqueologia e Etnologia (MAE
Quím. Nova. Publicado em: 2014
-
12. Química entre a microcamada superficial oceânica e os aerossóis marinhos
The sea surface microlayer (SML), although poorly understood, is important in biogeochemical cycling and sea - air exchanges; it is a source or a sink for a range of pollutants. In this paper, an overview of sampling techniques and the role of SML in biogeochemical cycles and climate is presented. The chemical and biological nature of the ocean surface film
Quím. Nova. Publicado em: 2014