Pond scum is usually just a nuisance, but it can become dangerous. Check out the chemistry behind these harmful algal blooms. When the environmental conditions are right, blue-green algae (which are actually blue-green bacteria) can blossom into harmful algal blooms. These blooms can release all sorts of deadly poisons into the environment. In this episode,听厂翱颁鈥檚听Sophia Cai explains how human health could be at risk, with help from听厂翱颁鈥檚听structure-drawing extraordinaire, Lauren Wolf.
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