² Louisville MSA achieved the 1-hour ozonestandard for the first time

Table 3: Metro Louisville 8-Hour Exceedance Summary
1998 – 2002

The numbers in this table are numbers of exceedances of the eight-hour ozone NAAQS ³.

 

My Louisville Find metro services & locations by address   Air Pollution Control Air Pollution Control Air Monitoring Air Monitoring Data Air Monitoring Sites Air Quality Forecasts EnviroFlash Louisville Area Air Pollution Maps Map of Air Monitoring Sites National Ambient Air Quality Standards (NAAQS) Quality Assurance for Ambient Air Monitoring Today's Air Quality Air Quality Measurements Influenced by Exceptional Events   features   LouisvilleKY.gov Links Find Metro Departments Employment Opportunities MetroCall Online Help How can we improve your city website?	Louisville MSA 2002 Ozone Monitoring Summary From April through October, you can get the latest data from the Southern Indiana sites. Table 1: 2002 8-Hour and 1-Hour Ozone Exceedance Summary This table shows daily maximum ozone concentrations from all ozone monitoringsites in the Louisville metropolitan area for days on which the standard wasexceeded at at least one of those sites or an Ozone Action Day was declared. Data have not all been quality assured. 8-hour exceedances: 78 exceedances on 26 days; the highest was 112 ppb on 9/8/02 at New Albany. 1-hour exceedances: 2 exceedances; the highest was 134 ppb on 9/8/02 at New Albany. Date 8-Hour Fcst. /Max., ppb Charlestown Clark County, IN New Albany Floyd County, IN Bates Jefferson County, KY Watson Jefferson County, KY WLKY-TV Jefferson County, KY Buckner Oldham County, KY Shepherdsville Bullitt County, KY OAD # 8-hr 1-hr 8-hr 1-hr 8-hr 1-hr 8-hr 1-hr 8-hr 1-hr 8-hr 1-hr 8-hr 1-hr   6/19/02 83/89 89 107 72 85 76 86 81 94 82 100 82 90 72 83   6/20/02 109/96 94 103 92 109 90 100 96 112 88 103 85 94 91 104 1 6/21/02 101/92 88 91 81 85 82 87 92 102 73 79 76 83 82 87 2 6/22/02 101/88 77 85 79 89 78 86 88 98 69 73 72 75 78 87 3 6/23/02 70/87 87 97 51 71 59 60 58 65 61 67 69 79 57 62   7/02/02 86/75 61 68 54 58 63 69 75 88 50 62 56 66 73 80 4 7/03/02 94/80 74 76 67 76 65 71 80 89 63 67 70 73 63 69 5 7/04/02 77/104 85 94 77 85 77 84 104 122 75 82 81 89 90 114   7/07/02 68/86 81 93 75 81 68 72 86 90 69 75 77 86 71 75   7/08/02 70/104 103 117 101 118 80 89 76 87 85 96 104 124 78 80   7/9/02 61/91 87 95 70 84 72 78 78 90 75 80 91 103 75 84   7/15/02 93/104 82 86 71 76 80 95 86 100 73 78 81 89 104 125 6 7/16/02 101/94 95 105 87 103 93 111 90 96 88 116 91 101 89 97 7 7/25/02 72/97 70 76 75 84 77 88 97 116 71 85 65 71 71 82   7/31/02 73/88 84 94 88 107 65 68 73 80 77 90 72 76 61 66   8/1/02 88/108 101 123 Void1 Void1 69 72 78 86 89 103 79 85 75 81 8 8/2/02 108/97 80 93 Void1 Void1 95 122 91 106 79 88 79 92 97 114 9 8/3/02 84/86 91 95 Void1 Void1 70 78 83 93 85 91 86 91 75 78   8/4/02 104/85 85 109 Void1 Void1 80 111 71 81 79 99 72 78 85 107 10 8/9/02 68/93 82 89 88 94 68 72 93 103 75 81 79 81 84 96   8/10/02 74/98 101 115 97 109 72 75 81 92 89 94 98 107 81 85   8/22/02 79/87 84 95 88 99 70 78 70 74 72 90 85 94 74 90 9/6/02 77/99 99 123 97 123 82 86 87 100 87 100 84 92 85 100 9/7/02 96/100 100 106 93 100 84 90 87 92 91 100 97 108 86 90 11 9/8/02 102/112 88 102 112 134 85 93 98 112 79 87 86 92 91 102 12 9/9/02 96/94 94 100 94 102 84 90 94 107 79 87 90 98 84 94 13 9/10/02 93/90 85 106 90 107 83 107 85 102 76 109 86 98 92 108 14 9/13/02 53/85 63 77 73 112 63 70 68 86 69 89 85 100 66 75   Exceedances: 17 0 12 1 4 0 15 0 8 0 12 0 10 1 14 Notes: Bold red indicates 8-hour or 1-hour exceedances.  The 1-hr ozone standard is 0.12 ppm; an exceedance is a value greater than or equal to 125 ppb.  The 8-hr ozone standard is 0.08 ppm; an exceedance is a value greater than or equal to 85 ppb.   OAD = Ozone Action Day.   Fcst. = Forecast.  Off = Monitor was offline or data were unavailable. 1IDEM voided these readings due to water in the probe line. Table 2: Metro Louisville 1-Hr Exceedance Summary 1996 – 2002 The numbers in this table are numbers of exceedances of the one-hour ozone NAAQS.   Year	C'town	New Albany	Bates	Watson	WLKY	Buckner	Shep.	Louisville MSA
1996	0	1	0	1	1	0	0	3
1997	3	2	1	0	0	2	1	9
1998	3	2	2	1	1	1	0	10
1999	0	0	0	0	0	1	0	1
2000 2	0	0	0	0	0	0	0	0
2001	0	0	0	0	0	0	1	1
2002	0	1	0	0	0	0	1	2

	C'town	New Albany	Bates	Watson	WLKY	Buckner	Shep.	Louisville MSA Total		Jefferson County Total
								Exceedances	Days	Exceedances	Days
1998	22	14	9	11	7	12	12	87	30	27	15
1999	9	12	16	13	4	34	11	99	44	33	22
2000	4	0	5	1	3	4	2	19	10	9	6
2001	4	0	2	1	1	4	2	14	10	4	3
2002	17	12	4	15	8	13	10	78	26	27	19

³ 8-Hour NAAQS: Attainment ofthe 8-hour ozone National Ambient Air Quality Standard (NAAQS) at an individualmonitor is achieved when the three-year average of the annual fourth-highestdaily maximum (4^th maximum) 8-h average ozone concentrationsis less than or equal to 84 ppb. This three-year average is the design valuefor that monitor.

Table 4: 8-Hr Ozone 4^th Maximum and Design Values Summary

This table shows the annual fourth-highest 8-hour daily maximum for each site and the ozone design values for the 3-year periods 1999-2001 and 2000-2002.

• The 1999-2001 design value for the Louisville MSA is 91 ppb
• The 2000-2002 design value for the Louisville MSA is 90 ppb (pending further quality assurance)

Year	Louisville, MSA	C'town	New Albany	Bates	Watson	WLKY	Buckner	Shep.
2002	100

100

97

85

96

88

91

91

2001

86

86

76

81

81

77

86

82

2000

90

85

77

90

76

84

85

82

1999

103

89

94

97

100

86

103

93

99-01 Avg.

91

86

82

89

86

82

91

86

00-02 Avg.

90

90

83

85

84

83

87

85

Bold italics indicate the leading 4^th maximum value for the Louisville MSA in 2002 and the design values for 1999-2001 and 2000-02.