Bottled water quality assessment through entropy-weighted water quality index (EWQI) and pollution index of groundwater (PIG): a case study in a fast-growing metropolitan area in Türkiye

ABSTRACT

The aim of the study is to evaluate the quality of water collected during wet and dry seasons of Şanlıurfa and to expand and improve understanding of the pollution status and drinking quality of bottled water used for drinking purposes. To do so, an entropy-weighted water quality index (EWQI) and a groundwater pollution index (PIG) were used to evaluate data on physicochemical parameters related to drinking water quality standards. The parameters related to bottled water quality were evaluated with Piper and Ternary diagrams. The calculated EWQI values ranged from 7.78 to 29.74 in wet season whereas 11.63 to 32.20 in dry season. Overall, EWQI data showed that all of water samples were suitable for drinking. Similarly, the values of PIG varied from 0.09 to 0.3 in wet season but 0.1 to 0.26 in dry season, which also showed that all water samples from the study area were suitable.

KEYWORDS:

• Entropy weighted water quality index
• pollution index of groundwater
• bottled water
• physicochemical quality
• Şanlıurfa

Acknowledgments

We would like to thank Res. Asst. Fatma Didem Alay for her contributions to this study. This work was supported by the [Turkish Republic Harran University Scientific Research Commission HUBAP] under Grant [number 20040].

Disclosure statement

No potential conflict of interest was reported by the author(s).

Author contributions

Benan Yazici Karabulut, methodology, investigation, writing-review, and editing; Yasar Kocer, data collection, sampling and analyses; Mehmet Irfan Yesilnacar, supervision, writing-review, and editing.

Supplementary material

Supplemental data for this article can be accessed online at https://doi.org/10.1080/09603123.2022.2130880

Correction Statement

This article has been corrected with minor changes. These changes do not impact the academic content of the article.

Additional information

Funding

This work was supported by the [Turkish Republic Harran University Scientific Research Commission HUBAP] under Grant [number 20040].