In situ measurement of ClO at midlatitudes: Is there an effect from Mt. Pinatubo?

Avallone, L.M., D.W. Toohey, . Proffitt, J. Margitan, . Chan, and J.G. Anderson (1993), In situ measurement of ClO at midlatitudes: Is there an effect from Mt. Pinatubo?, Geophys. Res. Lett., 20, 2519-2522.