Is That a Banana in Your Water?

National Geographic: Banana peels are no longer just for composting or comedy shows: New science shows they can pull heavy metal contamination from river water. Metals such as lead and copper are introduced to waterways from a variety of sources, including agricultural runoff and industrial wastes. Once there, heavy metals can contaminate soils and pose health risks to humans and other species. Lead is known to affect the brain and nervous system. Traditionally, water quality engineers have used silica, cellulose,......

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