St. Louis Air Quality by St. Louis Regional Clean Air Partnership

1999 PEAK OZONE VALUES (unvalidated)
DATE	AQI
Sept. 29	28
Sept. 28	23
Sept. 27	44
Sept. 26	62
Sept. 25	92
Sept. 24	87
Sept. 23	58
Sept. 22	35
Sept. 21	25
Sept. 20	24
Sept. 19	36
Sept. 18	79
Sept. 17	42
Sept. 16	37
Sept. 15	38
Sept. 14	34
Sept. 13	28
Sept. 12	43
Sept. 11	45
Sept. 10	52
Sept. 9	35
Sept. 8	39
Sept. 7	52
Sept. 6	47
Sept. 5	82
Sept. 4	202
Sept. 3	132
Sept. 2	130
Sept. 1	150
August 31	72
August 30	42
August 29	92
August 28	160
August 27	150
August 26	135
August 25	62
August 24	37
August 23	100
August 22	130
August 21	67
August 20	46
August 19	33
August 18	32
August 17	145
August 16	137
August 15	44
August 14	35
August 13	32
August 12	117
August 11	54
August 10	79
August 9	72
August 8	45
August 7	64
August 6	116
August 5	48
August 4	60
August 3	62
August 2	48
August 1	47
July 31	82
July 30	111
July 29	150
July 28	105
July 27	100
July 26	129
July 25	165
July 24	95
July 23	82
July 22	90
July 21	66
July 20	92
July 19	61
July 18	106
July 17	54
July 16	45
July 15	85
July 14	101
July 13	116
July 12	51
July 11	47
July 10	43
July 9	56
July 8	135
July 7u7	111
July 6	45
July 5	37
July 4	46
July 3	32
July 2	48
July 1	27
June 30	45
June 29	41
June 28	30
June 27	51
June 26	34
June 25	61
June 24	45
June 23	37
June 22	116
June 21	104
June 20	101
June 19	90
June 18	47
June 17	41
June 16	36
June 15	45
June 14	40
June 13	40
June 12	49
June 11	51
June 10	66
June 9	100
June 8	53
June 7	48
June 6	45
June 5	41
June 4	74
June 3	45
June 2	29
June 1	39
May 31	36
May 30	79
May 29	147
May 28	114
May 27	69
May 26	41
May 25	39
May 24	33
May 23	42
May 22	69
May 21	48
May 200	10404
May 19	51
May 18	38
May 17	38
High ozone values shown have not been validated and are subject to revision. Information is provided courtesy of the Missouri Department of Natural Resources and the Illinois Environmental Protection Agency.

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Air Quality Data - 1999

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