Increasing water contamination from farming is a concern, but debate still rages as to whether one of those concerns should be increased nitrate levels and risk of colorectal cancer
Southern correspondent Fiona Cassie takes a closer look at the science behind concerns over the health impacts of nitrates in water
Schullehner J, Hansen B, Thygesen M, et al. Nitrate in drinking water and colorectal cancer risk: A nationwide population-based cohort study. Int J Cancer 2018;143:73–79.