Daily maximum ozone for the entire U.S. (1415 sites) and Canada (167 sites) from 1986 - 1996. The data set was created by integrating ozone data from 7 networks including data from EPA's Aerometric Information Retrieval System (AIRS) Canada's NAPS National Air Pollution Surveillance Network (NAPS), and CASTNet. This data set is an update of the OTAG daily maximum ozone data set which is described by Husar and Husar (1998). The suitability of combining the NAPS data to the OTAG data set is addressed by Schichtel (1998)

Data set created on 10/13/1998

O3Nam_DMx_vy.zip (2.9 megs compressed, 7 megs uncompressed)

O3Nam_DMx_dt.zip (9.8 megs compressed, 65 megs uncompressed)