US research has found that the popular herb, coriander, has a high affinity to heavy metals. In simple terms, coriander can bind to metals such as nickel and lead which are highly toxic, making water safer to drink.
Although this method could not be used on a large scale, this knowledge could help those, in parts of the world where coriander is readily available, to drink safer water. The research was carried out at Ivy Tech Community College and has shown that up to 20mg/g of nickel can be removed from solution in 45 minutes and 145mg/g of lead in just 15!
Although the exact mechanism of how this process works is not understood, this discovery means that some form of 'teabag' could be produced on a large scale, helping even more people worldwide. I am definitely going to keep my eye on this story and keep you updated!
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