A new article in The Conversation by Nicolas Surdyk and the FAIRWAY team at BRGM explains how it is a real long-distance race to reduce nitrates in drinking water because of the lag time between pollutants entering water courses and being detected at the waterworks.

»https://theconversation.com/moins-de-nitrates-dans-leau-une-vraie-course-de-fond-165474

English summary

»https://www.brgm.fr/en/news/article/reducing-nitrates-water-real-long-distance-race