[PDF] Top 20 Water quality index using multivariate factorial analysis

... of water resources. Thus, six water collection points were chosen, taking into consideration urban ...on water quality in the Rio das Pedras ...the water sample collection ... See full document

... Caraá water samples and the highest concentrations were observed for Campo Bom, where most of the chemical parameters values were higher than the standards established in CONAMA Resolution 357/2005 for class 1 ... See full document

... of multivariate analysis techniques to interpret water quality parameters can be used to classify similar groups and to express hydro-chemical responses with similar ...other, using ... See full document

... ecological index Evenness E2 on ...qualitative analysis was performed using binocular optical microscope, and the quantitative analysis was performed using the sedimentation chamber ... See full document

... surface, using geotechnology tools capable of providing information of the local geography and, together with management processes of urban occupation, bring a new meaning to urban ...good quality ... See full document

... of water quality, the different variables that characterize them and indicate their quality must be ...2006). Using multivariate statistics techniques, it is possible to define the ... See full document

... Lycopene determination was based on a spectropho- tometric analysis using a Lambda-Bio40 spectrophotom- eter (Perkin-Elmer, Waltham, MA, USA). Lycopene extrac- tions were performed with 2 g of homogenate, ... See full document

... second multivariate analysis (PCA 2 ) of the data was conducted for the acquisition of the weights of these indicators and WQI ...each water quality indicator, relied on the results obtained ... See full document

... We performed an exploratory analysis using principal components analysis (PCA) and hierarchical cluster analysis (HCA), as shown in Fig. 3, in which the letters identify the collection month ... See full document

... the water quality of tributaries located in the upper basin of the river Mureş, taking into account changes in the value of biotic ...Trichoptera index (EPT), Total Invertebrates index (T), ... See full document

... management, water resources tend to become ...the water due to land uses and occupation in the Ipê stream basin, in Ilha Solteira - SP (Brazil), regarding the dependence of the analyzed ...biological ... See full document

... the water quality monitoring network of the Sergipe river basin, using multivariate data analysis, such as principal component analysis (PCA) and hierarchical cluster ... See full document

... Helicobacter pylori plays an important role in the etiology of peptic ulcer disease. Its prevalence appears to be higher in developing countries. We evaluated the seroprevalence of H. pylori and risk factors associated ... See full document

... Group 4 (Figure 3) was characterized as above average for NDM, PHM, and L, and below average for agronomic values. Furthermore, significantly high values of NB and NP were found for this same group. Thus, the genotypes ... See full document

... Questionnaire results pertaining to com- plaints about water quality were confirmed by supply water monitoring. For the evaluated vari- ables turbidity, E. coli, and total coliforms, be- tween 20% ... See full document

... Component Analysis (PCA) of the natural land cover and the most distinct habitat quality parameters among the natural ...Habitat quality parameters are represented in light grey as Flow stability ... See full document

... Profi le monitoring is the use of control charts for cases in which the quality of a process or product can be characterized by a functional relationship between a response variable and one or more explanatory ... See full document

... In addition, these experiments were useful for determining certain aspects of the 1,2-benzopyrone oxidation process. This event is controlled by a mass transfer and involves one electron. Furthermore, LV showed a ... See full document

... [8] explored the approach from [3] to bound the resampling risk using their same restrictive class of p-value distributions. She used the B-value boundaries proposed by [10] and applied the algorithm of [4] to ... See full document

... [r] ... See full document