The UK is facing growing calls to ban mercury dental fillings as new research indicates that over 98% of fish and mussels sampled in English waters contain mercury levels exceeding EU safety limits. Mercury is a known neurotoxin that can adversely affect the nervous, digestive, and immune systems, with particularly harmful effects on unborn babies. The contamination is largely attributed to crematorium emissions, which release vaporized mercury from dental fillings into the atmosphere. This mercury eventually settles into waterways, impacting wildlife and human health. While 43 countries have already banned mercury amalgam, the UK has yet to implement a nationwide ban, although Northern Ireland plans to do so by 2035. Environmental groups are urging the government to expedite action on mercury pollution, especially ahead of the upcoming Minamata convention, where a global phase-out of dental amalgam will be discussed. The British Dental Association has expressed concerns about the financial implications of a sudden ban, advocating for a transition period.