10-min averages of ambient ClNO2, N2O5, HNO3, and O3 measured at 12 m above ground level in Ann Arbor, Michigan, USA, from February 1 to March 10, 2016

These data represent continuous measurements of tropospheric nitryl chloride (ClNO2), dinitrogen pentoxide (N2O5), and nitric acid (HNO3) using chemical ionization mass spectrometry, and ozone (O3) using a chemiluminescence O3 monitor. The study was conducted from February 1 to March 10, 2016, at the University of Michigan in Ann Arbor, MI, USA. All measurements were conducted at 12 m above ground level.