Nitrate in drinking water is no less than a slow and invisible poison.
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Scientists at Barcelona Institute for Global Health (ISGlobal) have proposed that people who drink nitrate-contaminated tap water or bottled water for a long period of time are likely to develop prostate cancer.
Sources of nitrate pollution
Fertilizers used in farmlands to increase the yield and the manure from livestock farming that is left untreated contain large amounts of nitrate. During the rainy season, this nitrate seeps into freshwater bodies like rivers and ponds and even into aquifers. Apart from this, nitrate could also get into our environment from explosives, medicines, and food preservatives.