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Marine scientists find toxic bacteria on microplastics retrieved from tropical waters: When these tiny pieces of plastics are ingested by marine organisms, they may accumulate and be transferred up the food chain — ScienceDaily

A team of marine scientists had uncovered toxic bacteria living on the surfaces of microplastics (which are pieces of plastic smaller than 5 millimeters in size) collected from the coastal areas of Singapore. These bacteria are capable of causing coral bleaching, and triggering wound infections in humans. The team also discovered a diversity of bacteria, including useful organisms – such as those that can degrade marine pollutants like hydrocarbons – in the plastic waste.

Source: Marine scientists find toxic bacteria on microplastics retrieved from tropical waters: When these tiny pieces of plastics are ingested by marine organisms, they may accumulate and be transferred up the food chain — ScienceDaily