Sentence examples for contamination index from inspiring English sources
The number of contaminated seeds was used in order to estimate the seeds contamination index (SCI) according to Doolotkeldieva et al. using the formula (1) [24]: SCI % = number of contaminated seeds total number seeds × 100 (100
Therefore, we formulated a new contamination index named as Tea Research Association Heavy Metal Contamination Index (TRAHMCI) for tea growing soils.
The fractionation diagram and its associated maximum purification factor versus product yield, and contamination index versus product yield diagrams, may be derived directly from chromatographic data.
The minimum contamination index versus yield plot is especially suitable for cases where the product and impurity are expressed in different units and shows how the extent of contaminant removal changes relative to product yield.
Using the results of the analyses, score tables were systematically designed for the pesticide properties such that the sum of the scores for a particular pesticide, designated as the contamination index, was proportional to the expected/predicted concentration of that pesticide in river water.
The contamination index values in the resultant normalized difference map range between −1 and 1.
Selection of representative hazardous/priority hazardous metals for the studied impoundments, that allowed to classify the tailings by contamination indices and to highlight the differences between the impoundments related to contaminants influence on the environmental quality.
Selection of representative hazardous/priority hazardous metals for the studied impoundments, that allowed to classify the tailings by contamination indices and to highlight the differences between the impoundments related to contaminants influence on the environmental quality iii.
The objectives of the current study is: (1) to assess heavy metal pollution in sediments, (2) to investigate the seasonal variations and degree of contamination and pollution using pollution indices as contamination factor (CF), contamination degree (CD), pollution load index (PLI) and geo-accumulation index (Igeo), and (3) to identify the similar pollution sites using cluster analysis.
Correlations between contamination indexes and observed concentrations were fairly good.
The contamination indexes for pesticides applied in three river basins were calculated and compared with the corresponding observed pesticide concentrations.
