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

2004 PEAK AIR POLLUTION VALUES (unvalidated)
Date	AQI
September 14	34
September 13	38
September 12	61
September 11	85
September 10	64
September 9	38
September 8	38
September 7	31
September 6	30
September 5	41
September 4	50
September 3	82
September 2	90
September 1	82
August 31	39
August 30	32
August 29	18
August 28	34
August 27	40
August 26	34
August 25	26
August 24	24
August 23	27
August 22	46
August 21	56
August 20	22
August 19	64
August 18	69
August 17	59
August 16	49
August 15	61
August 14	39
August 13	34
August 12	26
August 11	28
August 10	32
August 9	77
August 8	64
August 7	54
August 6	44
August 5	32
August 4	40
August 3	74
August 2	49
August 1	92
July 31	49
July 30	34
July 29	74
July 28	61
July 27	79
July 26	42
July 25	27
July 24	34
July 23	38
July 22	90
July 21	90
July 20	82
July 19	66
July 18	47
July 17	37
July 16	92
July 15	51
July 14	41
July 13	69
July 12	43
July 11	45
July 10	45
July 9	69
July 8	45
July 7	36
July 6	38
July 5	44
July 4	45
July 3	28
July 2	32
July 1	41
June 30	90
June 29	72
June 28	45
June 27	48
June 26	45
June 25	37
June 24	72
June 23	48
June 22	25
June 21	34
June 20	48
June 19	37
June 18	47
June 17	49
June 16	39
June 15	36
June 14	95
June 13	51
June 12	54
June 11	38
June 10	37
June 9	16
June 8	37
June 7	40
June 6	79
June 5	54
June 4	45
June 3	40
June 2	37
June 1	45
May 31	39
May 30	32
May 29	45
May 28	61
May 27	38
May 26	26
May 25	34
May 24	56
May 23	30
May 22	42
May 21	43
May 20	37
May 19	30
May 18	36
May 17	47
May 16	32
May 15	33
High 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 - 2004