Key Instrument (IMAGE) NOAA Headquarters Caption The negative-ion proton-transfer chemical-ionization mass spectrometer, developed at NOAA's Earth System Laboratory in Boulder, Colo. The instrument helped a NOAA-led research team identify and measure isocyanic acid in the atmosphere. That acid has been linked with health effects from cataracts to cardiovascular disease. Credit Patrick Veres, Max Planck Institut for Chemistry Usage Restrictions Please credit Patrick Veres, Max Planck Institut for Chemistry (or his former affiliation, when the photo was shot: Patrick Veres, NOAA/CIRES) License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.