ResumoO objetivo desta pesquisa foi analisar a qualidade do ar atmosférico de Uberlândia, em Minas Gerais, por meio de modelos de regressão logística simples. O equipamento utilizado na obtenção dos dados de poluição foi o amostrador de partículas suspensas menores que 10 µm (MP 10 ). As medidas de concentração
AbstractThe objective of this paper was to analyze the air quality in Uberlândia, in Minas Gerais, by simple logistic regression models. The PM 10 sampler was used to obtain data of the pollution that considers only concentration of suspended particles smaller than 10 μm. The temperature, precipitation, relative humidity, wind speed, day of the week and seasons of year were used as predictions variables in this study. The day of week and seasons of year were used as binary system and as predictions variables too. The results showed that there is a significant relation among the temporal and climatic variables with the air quality of Uberlândia. The simple logistic models show that precipitation, humidity, summer, spring, Saturday, and Sunday significantly contribute to achieve good air quality, while the winter and the increasing flow of vehicles tend to worsen the air quality.
The aim of this study was to address the lack of information concerning the air quality in the city of Uberlândia, Minas Gerais, Brazil. In this study, we conducted an unprecedented experiment involving the in situ biomonitoring of air genotoxicity in the city center during and after a public transportation strike using the Tradescantia micronucleus test. The frequency of micronuclei was significantly higher in the city center compared with the reference site (Mann-Whitney test, p < 0.05), with the highest MN levels being observed during public transport stoppage (Kruskal-Wallis, Dunn p < 0.01). In addition, the multiple linear regression analyses revealed that the low circulation of buses during public transport stoppage and the increase in the concentration of particulate matter from the increased flow of vehicles in the city center during the strike positively influenced the MN frequency. The climatic factors did not change during the biomonitoring period, reflecting the fact that climatic factors did not influence the MN frequency.
Dessa forma, a convergência 'Ciência-Tecnologia'-atualmente considerada como sendo uma mesma coisa, objeto ou área-limita o potencial da Ciência em produzir conhecimento e frustra a possibilidade de que a Tecnologia ofereça mudança (aliás, mudança não é o mesmo que progresso econômico!). Isto implica reconhecer que a pressão social, política e econômica sobre a Ciência, cobrando rapidez, resultados práticos e utilitários, compromete a autonomia, imparcialidade e neutralidade dos cientistas e, por consequência, enviesa as possibilidades de aplicação dos conhecimentos científicos pela via da 'seleção' de informações para defesa de interesses minoritários, ampliando a distância entre Ciência e Sociedade e colocando a liberdade acadêmica em risco (GREENHALGH;
The development of parameters to explore the link between air-related diseases and their significant driving forces is an important aim in terms of national economics and public health. In this study, we did an integrated analysis involving multiple environmental health indicators from Uberlândia, Brazil, registered before and during a period when the Brazilian government reduced taxes on new cars in a bid to bolster local manufacturing. In addition, the present study utilized Driving Force-Pressure-State-Exposure-Effect-Action (DPSEEA) frameworks to evaluate correlations in environmental health indicators over 10 years (2004-2013), in which the Brazilian government reduced vehicle production taxes beginning in 2008. Significant correlations in all indicators selected were found from 2008 to 2013, corresponding to the tax reduction on new vehicles. The frequency of micronuclei (MN) was significantly higher in the city center compared to the reference site, with the highest MN levels observed during the period of reduced taxes. Results reinforced the need to adopt air quality monitoring programs in major cities.
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