Chemical composition of hoarfrost,rime and snow during a winter inversion in Utah,U.S.A.

We present data on the chemical composition of hoarfrost, rime, and snow grains that accumulated during an eighteen-day long temperature inversion event in Salt Lake City, Utah in December 1985 and January 1986. Chemical analyses show that the precipitation formed during this inversion event was acidic (as low as pH 3.85) and had nitrate and sulfate contents up to 1680 and 1290 μeq · L^?1, respectively. Ammonia, nitrate, and sulfate deposition of 361, 615, and 792 μeq · m^?2, respectively, occurred in a six-day period due to the accumulation of snow grains during this inversion.