Spotting danger from on high

Airborne sensors can identify mineral outcrops and soil that may contain natural asbestos

Airborne instruments can scan the ground to quickly and efficiently detect rocks and soil that may contain naturally occurring asbestos, researchers report.

HIGH SPY Airborne images confirm the presence of potentially asbestos-bearing serpentine minerals (red, orange) in California’s El Dorado County, north of the river (black) that bisects the image.