PMID- 36308501 OWN - NLM STAT- MEDLINE DCOM- 20221101 LR - 20221101 IS - 1477-8920 (Print) IS - 1477-8920 (Linking) VI - 20 IP - 10 DP - 2022 Oct TI - Microbial contamination and quantitative microbial risk assessment of high-density polyethylene (HDPE) film sachet drinking water in Ghana. PG - 1587-1603 LID - 10.2166/wh.2022.163 [doi] AB - The present research estimated the impact of storage on the microbial quality of high-density polyethylene drinking water. Samples were taken from two popular companies in Greater Accra using a two-sided exact test in SAS JMP to estimate the sample size. The samples were stored across three temperature profiles at 8 degrees C, 30 degrees C (average room temperature), and 40 degrees C (average outdoor temperature) for 28 days. The samples were examined using standard microbiological methods for heterotrophic plate counts (HPCs), faecal coliforms, and Escherichia coli. The data were described and regressed with Microsoft Excel, Argo 4.3.1, and SAS JMP software. The results demonstrated increasing deterioration of the water samples for all microbial indices at all temperatures with increasing storage duration. The highest HPC, faecal coliforms, and E. coli were 1,312; 622; and 252 cfu/100 mL, respectively, all at 40 degrees C. The daily risk of infection due to E. coli O157:H7 was 5.22 x 10(-5) infections per child per day for children under 5 years, and 1.6 x 10(-4) attacks per adult per day, compared to the upper limit of 1.0 x 10(-6). These results are higher than recommended exposures, and interventions along the sachet drinking water value chain are needed to protect public health. FAU - Angnunavuri, Prosper Naah AU - Angnunavuri PN AD - School of Engineering, Department of Civil and Environmental Engineering, University of Energy and Natural Resources, Sunyani, Ghana E-mail: tobuogh@gmail.com. FAU - Attiogbe, Francis AU - Attiogbe F AD - School of Engineering, Department of Civil and Environmental Engineering, University of Energy and Natural Resources, Sunyani, Ghana E-mail: tobuogh@gmail.com. FAU - Mensah, Bismark AU - Mensah B AD - School of Engineering, University of Ghana, Legon, Ghana. LA - eng PT - Journal Article PL - England TA - J Water Health JT - Journal of water and health JID - 101185420 RN - 0 (Drinking Water) RN - 9002-88-4 (Polyethylene) SB - IM MH - Child MH - Humans MH - Child, Preschool MH - *Drinking Water MH - Polyethylene MH - Colony Count, Microbial MH - Ghana MH - *Escherichia coli O157 MH - Temperature MH - Risk Assessment MH - Food Microbiology EDAT- 2022/10/30 06:00 MHDA- 2022/11/02 06:00 CRDT- 2022/10/29 10:32 PHST- 2022/10/29 10:32 [entrez] PHST- 2022/10/30 06:00 [pubmed] PHST- 2022/11/02 06:00 [medline] AID - 10.2166/wh.2022.163 [doi] PST - ppublish SO - J Water Health. 2022 Oct;20(10):1587-1603. doi: 10.2166/wh.2022.163.