Columbia Engineering's compact, chip - scale dual comb spectrometer was able to measure a broad spectrum of dichloromethane in just 20 microseconds (there are 1,000,000 microseconds in one second), a task that would have taken at least several seconds with conventional spectrometers. (sciencedaily.com)
And one is direct contact with dichloromethane or ethyl acetate to fairly harmful compounds and chemicals. (bengreenfieldfitness.com)
At present, the long - term recovery of the Ozone Layer from the effects of CFCs is still on track, but the presence of increasing dichloromethane will add some uncertainty to our future predictions of ozone and climate.» (sciencedaily.com)