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Drinking Water Quality Assessment of Government, Non-Government and Self-Based Schemes in the Disaster Affected Areas of Khyber Pakhtunkhwa, Pakistan

Abstract

The present study aimed to investigate the physicochemical parameters, potentially toxic elements (PTEs) and Escherichia coli (E. coli) contamination with associated health risks in drinking water sources from the disaster affected areas of Khyber Pakhtunkhwa (Pakistan). Total water samples (n = 120) were collected from different water distribution schemes, such as non-government organizations (NGOs), government (GOV) and self-based scheme (SBS). The results showed that physicochemical parameters were found to be in decreasing order; NGOs > SBS > GOV in drinking water sources. PTEs concentrations were found to be in order; Zn > Pb > Cu > Cr > Co > Ni > Hg, Cu > Zn > Pb > Cr > Co > Ni > Hg, and Zn > Cu > Cr > Pb > Co > Ni > Hg for NGOs, GOV and SBS, respectively. Hg and Cr in SBS, while Co in GOV and SBS exceeded the WHO and Pak-EPA limits. Hazard quotient (HQ) showed no potential health risk, except for Co and Hg (> 1) in GOV and SBS. Principal component analysis (PCA) revealed high anthropogenic activities and less geogenic sources. The questionnaire survey showed that local communities were highly vulnerable due to poor pipelines system and domestic sewage within the areas of GOV and SBS water sources. Numerous diseases, such as dysentery contributed for (14%, 12%, and 18%), diarrhea (25%, 21%, and 18%), and stomach problems (48%, 33%, and 27%) due to consumption of E. coli contaminated water in NGOs, GOV and SBS, respectively, in the study area.

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Acknowledgements

Higher Education Commission (HEC) of Pakistan under National Research Program for Universities (NRPU) project no. 20-14899/NRPU/R&D/HEC/2021 and Pakistan Science Foundation (PSF) project no. PSF/NSLP/KP AWKUM (827) are highly acknowledged for financial support.

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Pakistan Science Foundation, PSF/NSLP/KP AWKUM (827), Javed Nawab

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Conceptualization, Methodology, and Writing—original draft: [JN], Formal analysis and investigation: [JN, and AR], Software and validation: [JG, ZH and HK], Writing—reviewing and editing: [SK, HK, and MW], Funding acquisition: [JN].

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Correspondence to Javed Nawab or Sardar Khan.

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Nawab, J., Rahman, A., Khan, S. et al. Drinking Water Quality Assessment of Government, Non-Government and Self-Based Schemes in the Disaster Affected Areas of Khyber Pakhtunkhwa, Pakistan. Expo Health 15, 567–583 (2023). https://doi.org/10.1007/s12403-022-00511-2

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