date:Aug 11, 2021
rcelona to 309 (which equals an average of two hours of lost life expectancy if spread equally among all Barcelona residents).
Adding domestic filtration to tap water would reduce that risk considerably, lowering the total number of years of life lost to 36. The study authors emphasize that despite the overall impact on life expectancy, switching to tap water still remains preferable.
Our results show that considering both the environmental and the health effects, tap water is a better optio