These summaries are not updated in real time. Data will be posted as soon as compiled. Data are preliminary, and subject to change. For statewide information by zip code or city name see EPA’s AIRNOW web page.

2018 Summary

 Standard Limit # of Days Exceeding Max
Ozone 1-hour State Standard 94 ppb
Ozone 8-hour Federal Standard 70 ppb
Ozone 8-hour State Standard 70 pbb
Particulate Matter PM10 24-hour State Standard 50 ug/m3 27 128
Particulate Matter PM10 24-hour Federal Standard 154 ug/m3
Particulate Matter PM2.5 24-hour Federal Standard 35 ug/m3 2 40
Count  Date Daily Max  Carp El Capitan  Goleta Las Flores Cyn Lompoc HS&P Lompoc H St Nojoqui Paradise Rd Santa Barbara Santa Maria Santa Ynez VAFB South
Count  Date Daily Max  Carp El Capitan  Goleta Las Flores Cyn Lompoc HS&P Lompoc H St Nojoqui Paradise Rd Santa Barbara Santa Maria Santa Ynez VAFB South
Count  Date Daily Max  Carp El Capitan  Goleta Las Flores Cyn Lompoc HS&P Lompoc H St Nojoqui Paradise Rd Santa Barbara Santa Maria Santa Ynez VAFB South
Count  Date Daily Max El Capitan  Goleta Las Flores Cyn Lompoc H St Santa Barbara Santa Maria VAFB South
1 1/12/18 57 20 24 10 19 57 16 24
2 1/13/18 108 21 18 11 21 108 16 30
3 1/14/18 128 32 16 9 17 128 16 25
4 1/15/18 78 20 24 11 22 78 19 40
5 1/16/18 100 47 29 17 18 100 23 28
6 1/17/18 77 38 29 14 11 77 15 35
7 1/18/18 64 35 30 14 11 64 16 29
8 1/30/18 53 13 24 7 25 53 26 29
9 2/6/18 53 38 40 24 24 46 27 53
10 4/12/18 53 19 16 17 28 21 53 NA
11 4/27/18 52 24 26 24 25 31 52 NA
12 5/11/18 60 32 60 28 28 40 29 NA
13 6/9/18 51 47 40 35 26 NA 51 NA
14 6/10/18 54 42 43 33 41 NA 54 NA
15 7/6/18 72 52 72 26 35 62 62 NA
16 7/7/18 60 56 58 35 40 60 59 NA
17 7/9/18 57 42 36 34 40 39 57 NA
18 7/10/18 52 31 29 30 41 32 52 NA
19 8/6/18 56 36 33 31 35 37 56 NA
20 8/7/18 52 52 43 45 25 45 40 NA
21 8/23/18 51 37 34 26 47 34 51 NA
22 8/24/18 59 50 52 45 52 54 59 NA
23 8/31/18 53 48 38 39 30 38 53 NA
24 9/20/18 53 32 35 28 41 38 53 NA
25 11/4/18 51 26 25 20 31 30 34 51
26 11/16/18 63 28 29 18 63 34 52 55
27 12/19/18 69 11 12 8 23 23 19 69
Count Date Daily Max El Capitan Goleta Las Flores Cyn Lompoc H St Santa Barbara Santa Maria VAFB South
Count Date Daily Max Goleta Lompoc H St Santa Barbara Santa Maria
1 8/23/18 35.8 19.9 35.8 21.2 33.7
2 8/24/18 40.6 35.6 40.6 37.7 40.4

Notes:

To view current exceedances, see Days Exceeding Ozone and Particulate Standards.

For previous years see 2018, 2017, 2016 or 2015-1998.

Ozone 8 hour Averages   Although the federal and state 8-hour average ozone standards are both set at 70 ppb, recorded levels for the state standard are rounded to the nearest whole number, while levels for the federal standard are truncated to the nearest whole number.  For example, a value of 71.6 would be rounded to 72 for the state standard and truncated to 71 for the federal standard.

Particulate Matter PM10 is calculated different when being compared to the state standard versus the federal standard. The PM10 state 24 hour value is a rounded average of the monitors 24 hourly readings in a day using local ambient temperature and pressure conditions. The PM10 federal 24 hour value is a truncated average of the monitors 24 hourly readings in a day using standardized temperature and pressure conditions. This difference results in slightly different 24 hour averages for each monitoring station on a given day.