October 1st, 2009
By Barbara Kessler
Green Right Now
Squint and you can’t see them. Try a standard microscope. They’re still not there.
And yet, they’re everywhere. Nanoparticles are in hundreds, if not thousands, of consumer products, from sunscreen to child car seats to sports socks.
So the EPA has decided to take a closer look at these eensy particles, to investigate their potential to harm humans and the environment.
Nanos, which are about 1/100,000 of the width of a human hair and have been aggregating in consumer goods faster than E coli at a feed lot, have raised concerns among environmentalists, public health officials and others. These guardians of the environment want to know more about how nanos act in water. air and soil, and also whether they can invade and damage human tissue.