Index of ftp://amdaftp.tceq.texas.gov/GN/data/obs
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aqs_1hour_o3_2012.csv.gz
65.89Mb
December 28 2016
aqs_8hour_o3_2012.csv.gz
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December 29 2016
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aqs_1hour_o3_2012.csv.gz aqs_8hour_o3_2012.csv.gz