If pollutants are sending you reeling
In the waters with which you are dealing
And you’re looking to shed
Heavy metals, like lead,
You might find bananas appealing

Headline: Slippery Banana Peels Could Be A Savior For Polluted Water

Ok, so it’s not really a headline, it’s from NPR’s health blog, “Shots”. But it’s cool. Eliza Barclay reports on a study which used minced banana peel as a natural matrix for concentrating heavy metals (copper and lead) for extraction from river water. Metals were 20 times more concentrated in the pulp, and after extraction the pulp could be re-used, up to 11 times without reduced effectiveness.