Research Article
Rainwater as a Source of Drinking Water: Health Impacts and Rainwater Treatment
Table 3
Rainwater pH before and after treatment.
| City/regency area | Subdistrict/village | pH before treatment | pH after treatment | Drinking water requirement |
| Pontianak | Siantan Hulu | 4.626 | 7.001 | 6.5–8.5 | Siantan Tengah | 4.937 | 6.981 | | Kubu Raya | Desa Limbung | 5.357 | 6.791 | | Desa Kuala Dua | 5.721 | 7.014 | | Mean | | 5.16 | 6.95 | | Median (min.-max.) | | 5.06 (4.61–6.09) | 6.96 (6.31–7.43) | | Sd | | 0.52 | 0.21 | | Pa | ≤0.001 |
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Source: primary data; aT-test ( α = 5%); significant at . |