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Chemical composition of rainwater in the Sinos River Basin, Southern Brazil: a source apportionment study
TLDR
Assessment of chemical composition of the rainwater in three areas of different environmental impact gradients in Southern Brazil using the receptor model EPA Positive Matrix Factorization allows a more appropriate understanding of factors that contribute to rainwater chemical composition and also to possible changes in air quality. Expand
Integrated assessment of air pollution by metals and source apportionment using ryegrass (Lolium multiflorum Lam.) in southern Brazil
TLDR
The anthropogenic impact on air pollution in the investigated area could be clearly demonstrated with the proposed method: biomonitoring with L. multiflorum and active monitoring in areas with different levels of urbanization and industrialization. Expand
Source apportionment of metallic elements in urban atmospheric particulate matter and assessment of its water-soluble fraction toxicity
TLDR
The source apportionment demonstrated that vehicular and industrial emissions are the main anthropogenic sources contributing to the concentration of metallic elements to thePM 2.5 and PM 2. Expand
Concentrations of PM₂.₅₋₁₀ and PM₂.₅ and metallic elements around the Schmidt Stream area, in the Sinos River Basin, southern Brazil.
TLDR
The integrated study methodology, employing environmental variables, such as PM and ryegrass, can be of help in the preparation of wide-ranging environmental diagnoses, in addition providing information needed to develop precautionary measures designed to minimize the effects of atmospheric pollution. Expand
Assessment of susceptibility to landslides through geographic information systems and the logistic regression model
The increase in the frequency of natural disasters in recent years and its consequent social, economic and environmental impacts make it possible to prioritize areas of risk as an essential measureExpand
Germination and sporophytic development of Regnellidium diphyllum Lindm. (Marsileaceae) in the presence of copper
TLDR
It is concluded that the release of pollutants containing copper into the natural habitats of R. diphyllum can cause phytotoxicity, threatening the establishment of populations and worsening the already vulnerable conservation status of this species. Expand
Assessment of a subtropical riparian forest focusing on botanical, meteorological, ecological characterization and chemical analysis of rainwater
Riparian forests are heterogeneous environments, in which epiphytes find ideal conditions to develop. These plants absorb the necessary nutrients for survival from the atmosphere, and theirExpand
MULTIVARIATE STATISTICAL ANALYSIS AND USE OF GEOGRAPHIC INFORMATION SYSTEMS IN RAW WATER QUALITY ASSESSMENT
Este estudo teve como objetivo aplicar uma metodologia que avalie a qualidadeda agua bruta e sua relacao com usos e ocupacoes do solo por meio de analiseestatistica multivariada e do Sistema deExpand
Seasonal assessment and apportionment of surface water pollution using multivariate statistical methods: Sinos River, southern Brazil
TLDR
The results provided by this study demonstrate the contribution provided by the use of integrated statistical techniques in the interpretation and understanding of large data sets of water quality, showing also that this approach can be used as an efficient methodology to optimize indicators for water quality assessment. Expand
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