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Simple Water Quality Index (ISQA) ISQA is calculated as: ISQA = I TEMP * (I BOD + I TSS + I DO + I COND). Where I TEMP, I BOD, I TSS, I DO, and I COND represent individual index terms with different weighting factors for each parameter. ISQA varies from 0 to 100, with 100 indicating excellent water quality, as shown to the left.
- Purdue University
Simple Water Quality Index Calculator. An index value is...
- Purdue University
Simple Water Quality Index Calculator. An index value is calculated for each of five water quality parameters, temperature, biological oxygen demand (BOD), total suspended sediment (TSS), dissolved oxygen (DO), and conductivity. A higher value of each index indicates better water quality.
11 Μαρ 2023 · The first step to develop an index is to select a list of 10 variables for the index’s construction, which are: sewage treatment, dissolved oxygen (DO), pH, coliforms, electroconductivity (EC), carbon chloroform extract (CCE), alkalinity, chloride, temperature and obvious pollution.
10 Ιουν 2018 · The present study aimed to calculate water quality index (WQI) by the analysis of thirteen physicochemical parameters on the basis of Weighted Arithmetic Index in order to assess the...
1 Μαρ 2021 · Most WQI models involve four stages: (1) selection of water quality parameters, (2) determination of parameter sub-indices, (3) determination of parameter weightings and (4) aggregation of the sub-indices to compute the overall water quality index.
1 Φεβ 2021 · This study is based on hydrogeochemical and biological parameters and calculation of Water Quality Index (WQI) to assess water quality of a rural tract in five districts of Garhwal and Kumaon district of Uttarakhand, India.
Here, an interactive interface is provided to calculate self-diffusion coefficients of water at different temperatures (or, alternatively, to calculate the temperature corresponding to a given diffusion coefficient).
