In short: this metal-polymer sponge-like material can sweep up lead and mercury pollutants from any source of water with extreme efficiency, and can even be cleaned and reused over and over again.
To put that “1 parts per million in seconds” into context, consider the current US Environmental Protection Agency limit of lead in drinking water of 2 parts per billion (2 ppb being 500 times less than 1 ppm) — this material does the job!
But didn’t we stop using leaded gasoline long ago? Yes, but lead is difficult to get rid of, and it still originates from paints, ceramic glazes, jewelry, toys and in pipes etc. A