The platform shows good precision, high sensitivity and specificity, which opening a promising horizon for monitoring of cyanobacterial pollution in environmental matrices.
However, in a supplemental study in which sampling was carried out in 2009 at three additional sites in the Denver area in addition to the site described in this study, we found little spatial heterogeneity of the PM2.5 components time series or for pollution sources estimated by positive matrix factorization (PMF) across the four sites [ 34, 35].
The presence of toxic metals in the environmental matrices is one of the major concerns of pollution control and environmental agencies in most parts of the world.
Pollution evaluation indices, principal component analysis, cluster analysis and correlation matrix have been used to assess the intensity and sources of pollution in groundwater samples from the Ejisu-Juaben Municipality, Ghana.
Principal component analysis (PCA) and Spearman's correlation matrix have been frequently applied to analyze the pollution parameters in groundwater (Selvakumar et al. 2014).
Additional file 1: Table S1 Correlation matrix of log-transformed tree pollens, weather, and air pollution variables.
Furthermore, to investigate possible underlying mechanisms, an inflammatory marker was measured in exhaled breath condensate (EBC), a relevant matrix to study immediate or short-term responses to air pollution.
To assess environmental quality in the Cartagena coastal zone with respect to chemical pollution, data were assessed using available assessment criteria, and then integrated for different environmental matrices.
The matrix assessed the risk posed by 17 problem areas including air pollution, water contamination, solid waste sites, pesticides and ecosystem degradation.
We used generalized estimating equations with a logit link function and an exchangeable correlation matrix to assess the association between long-term exposure to traffic pollution and the presence of depressive symptoms.
