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.

01/30 01/31 02/01 02/02 02/03 02/04 02/05

San Joaquin

Stockton-Hazelton 31
33
30
20
25
25
24

Manteca

Tracy-Airport 41
39
38
23
34
31
32

Stanislaus

Modesto-14th 36
35
36
31
28
26
26

Turlock 36
38
33
34
27
30

Merced

Merced-Coffee 35
34
37
29
28
23
27

Madera

Madera-City 31
33
35
27
32
28
32

Madera 31
33
36
31
34
30
34

Fresno

Fresno-SSP 31
34
34
25
34
29
32

Clovis 31
26
34
30
27

Fresno-Garland 29
32
28
24
32
28
26

Fresno-Drummond 29
31
27
24
33
25
23

Parlier 29
34
29
28
36
31
32

Tranquillity 35
39
38
29
25
24
39

Huron

Kings

Hanford 30
30
27
31

Corcoran

Tulare

Visalia, Church 21
28
26
24
30
29
28

Porterville 17
34
33
32
38
38
37

Ash Mountain-SNP 25
34
28
29
41
34
34

Lower Kaweah-SNP 41
40
40
40
44
39
40

Kern

Shafter 33
37
38
33
34
38
38

Oildale 34
31
19
31
28

Bakersfield-Calif 25
31
27
29
26
32
27

Bakersfield-Muni 27
33
36
12
22
30

Edison 28
35
37
37
32
35
34

Arvin-DiGiorgio 31
38
38
41
36
37
39

Maricopa 33
38
37
32

Lebec

District Maximum 41
40
40
41
44
39
40

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum

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

O3-1hr (ppb) 48
PM10 State 24-hr 2
State 1-Hr Ozone 0

O3-8hr (ppb) 46
PM2.5 Federal 2006 24-hr 6
Federal 2008 8-Hr Ozone 0

PM 10 (µg/m³) 55
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 0

PM 2.5 (µg/m³) 52
State 1997 8-Hr Ozone 0
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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Saturday, February 6, 2016 Page 1 of 1