Ozone Eight-Hour Maximum (PPB)

The information in this report is based on preliminary data and is subject to change. The real-time PM10/PM2.5

monitoring equipment is used for air quality forecasting and trend analysis.

10/13 10/14 10/15 10/16 10/17 10/18 10/19

San Joaquin

Stockton-Hazelton 62
43
40
43
45
42
50

Manteca

Tracy-Airport 61
47
45
47
46
47
53

Stanislaus

Modesto-14th 60
48
42
42
46
45
53

Turlock 62
51
40
37
44
45
50

Merced

Merced-Coffee 69
40
46
46
48
59

Madera

Madera-City 66
57
43
41
47
51
63

Madera 69
58
43
40
48
51
63

Fresno

Fresno-SSP 66
35
39
48
52
62

Clovis 62
45
43
49
55
65

Fresno-Garland 69
58
43
39
48
53
62

Fresno-Drummond 66
53
40
36
45
52
60

Parlier 77
63
46
43
51
60
68

Tranquillity

Huron

Kings

Hanford 58
48
43
32
48
53
59

Corcoran

Tulare

Visalia, Church 66
51
39
40
44
48
57

Porterville 56
30
35
44

Ash Mountain-SNP 64
61
43
53
61
60
62

Lower Kaweah-SNP 60
58
48
60
60
59
53

Kern

Shafter 68
50
39
46
46
53
63

Oildale 69
55
38
49
50
52
65

Bakersfield-Calif 80
55
41
52
50
56
70

Bakersfield-Muni 73
56
40
53
49
56
72

Edison

Arvin-DiGiorgio 61
58
42
53
52
58
67

Maricopa 62
60
40
53
55
58
68

Lebec

District Maximum 80
63
48
60
61
60
72

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum

PM10 Federal 24-hr 5
Federal 1-Hr Ozone 0

O3-1hr (ppb) 123
PM10 State 24-hr 151
State 1-Hr Ozone 47

O3-8hr (ppb) 105
PM2.5 Federal 2006 24-hr 30
Federal 2008 8-Hr Ozone 88

PM 10 (µg/m³) 180
PM2.5 Federal 1997 24-hr 12
Federal 1997 8-Hr Ozone 37

PM 2.5 (µg/m³) 98
State 1997 8-Hr Ozone 122
¹Some of the days over the standards shown above may be the result of “Natural Events” such as extreme wind episodes, or
“Exceptional Events” such as wildfires and would not count as violations of the federal standard.
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Monday, October 20, 2014 Page 1 of 1