Lifeboat Foundation

Arsenic poisoning from drinking water is still a health concern for 137 million people in more than 70 countries around the world.

But a new filtration system created by Australian researchers could be the cheap and easy technology required to help solve this huge health issue — and best of all, it can be made using recycled parts.

Current systems for removing arsenic from ground water, such as reverse osmosis or iron exchange, aren’t cost effective or efficient, which means they’re not much use in the countries that really need them, like Vietnam and Bangladesh.