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<p>This research, conducted between 2019 and 2024, aims to analyze the changing process in the water quality parameters of the Kichik Chai River. It employs laboratory analysis methods, interprets satellite images using ENVI software, and simulates conditions using the QUAL2Kw model to determine compliance with water quality standards. Three methods, namely the water quality index, Piper, and Scholler, were employed to assess the water quality. The investigation into heavy metal concentrations in the Kichik Chai River revealed an increase in pH, total suspended solids (TSS), and total dissolved solids (TDS), along with a slight decrease in turbidity and biochemical oxygen demand (BOD). In the 2024 satellite images, the highest and lowest errors were recorded at stations 4 and 2, respectively, while in the 2019 satellite images, the highest errors were at stations 2, 1, and 4. Furthermore, an analysis of actual pollutant sources in the Kichik Chai River watershed using taxonomy methods across six sampling stations and examining fifteen effective parameters indicated that the locations of the waste material dump, copper production complex, and mine acid water drainage had pollution potential scores of 0.862, 0.726, and 0.705, respectively.</p>

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Monitoring of Pollutants in Surface Water with Laboratory Analysis and Satellite Image Between 2019 and 2024, Kichik Chai River, Iran

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • Abolfazl Jamali,
  • Mohammad Ebrahim Ramazani,
  • Arezoo Nejaei,
  • Omid Rafieyan

摘要

This research, conducted between 2019 and 2024, aims to analyze the changing process in the water quality parameters of the Kichik Chai River. It employs laboratory analysis methods, interprets satellite images using ENVI software, and simulates conditions using the QUAL2Kw model to determine compliance with water quality standards. Three methods, namely the water quality index, Piper, and Scholler, were employed to assess the water quality. The investigation into heavy metal concentrations in the Kichik Chai River revealed an increase in pH, total suspended solids (TSS), and total dissolved solids (TDS), along with a slight decrease in turbidity and biochemical oxygen demand (BOD). In the 2024 satellite images, the highest and lowest errors were recorded at stations 4 and 2, respectively, while in the 2019 satellite images, the highest errors were at stations 2, 1, and 4. Furthermore, an analysis of actual pollutant sources in the Kichik Chai River watershed using taxonomy methods across six sampling stations and examining fifteen effective parameters indicated that the locations of the waste material dump, copper production complex, and mine acid water drainage had pollution potential scores of 0.862, 0.726, and 0.705, respectively.