Nanotechnology removes Arsenic

Idaho National Laboratory reports INL researchers have engineered a
revolutionary and affordable material called Nano-Composite Arsenic Sorbent.

"N-CAS contains high concentrations of arsenic adsorbing nano-particle metal oxides embedded in a strong composite polymer matrix. It excels in offering significant reaction kinetics, exceptional strength and an extreme surface area. In fact, one gram of N-CAS contains 40% more adsorbent surface area than the square footage of the average American home. It is estimated that one gallon of N-CAS can treat 350-400,000 gallons of water."

Read all about it:
http://www.inl.gov/factsheets/docs/n-cas.pdf

" This technology will aid millions of Americans, but also
more than 70 million people around the globe, who are
exposed to dangerous arsenic concentrations in their drinking water."