Historical Data
*The Port of Los Angeles is in the process of upgrading its four air monitoring stations with new instrumentation and equipment. The procurement process is expected to be completed by the end of September 2022. The instrumentation and equipment will be installed as they are delivered, with all installation completed by the end of March 2023. Click here for details.
* ALL DATA IS PRELIMINARY. DATA IS PRESENTED IN PACIFIC STANDARD TIME EVEN DURING DAYLIGHT SAVINGS TIME.
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| Date | Monitored Parameter | Averaging Period | Value | Units | State Standard | Federal Standard | Air Quality Index |
|---|---|---|---|---|---|---|---|
| 09/20/22 00:00 | O3 | 1 hr | 0.015 | ppm | 0.090 | -- | -- |
| 09/20/22 01:00 | O3 | 1 hr | 0.014 | ppm | 0.090 | -- | -- |
| 09/20/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/20/22 03:00 | O3 | 1 hr | 0.005 | ppm | 0.090 | -- | -- |
| 09/20/22 04:00 | O3 | 1 hr | 0.007 | ppm | 0.090 | -- | -- |
| 09/20/22 05:00 | O3 | 1 hr | 0.003 | ppm | 0.090 | -- | -- |
| 09/20/22 06:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/20/22 07:00 | O3 | 1 hr | 0.006 | ppm | 0.090 | -- | -- |
| 09/20/22 08:00 | O3 | 1 hr | 0.009 | ppm | 0.090 | -- | -- |
| 09/20/22 09:00 | O3 | 1 hr | 0.013 | ppm | 0.090 | -- | -- |
| 09/20/22 10:00 | O3 | 1 hr | 0.012 | ppm | 0.090 | -- | -- |
| 09/20/22 11:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/20/22 12:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/20/22 13:00 | O3 | 1 hr | 0.022 | ppm | 0.090 | -- | -- |
| 09/20/22 14:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 09/20/22 15:00 | O3 | 1 hr | 0.017 | ppm | 0.090 | -- | -- |
| 09/20/22 16:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 09/20/22 17:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/20/22 18:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/20/22 19:00 | O3 | 1 hr | 0.019 | ppm | 0.090 | -- | -- |
| 09/20/22 20:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/20/22 21:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 09/20/22 22:00 | O3 | 1 hr | 0.022 | ppm | 0.090 | -- | -- |
| 09/20/22 23:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/21/22 00:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/21/22 01:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/21/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/21/22 03:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/21/22 04:00 | O3 | 1 hr | 0.014 | ppm | 0.090 | -- | -- |
| 09/21/22 05:00 | O3 | 1 hr | 0.008 | ppm | 0.090 | -- | -- |
| 09/21/22 06:00 | O3 | 1 hr | 0.006 | ppm | 0.090 | -- | -- |
| 09/21/22 07:00 | O3 | 1 hr | 0.007 | ppm | 0.090 | -- | -- |
| 09/21/22 08:00 | O3 | 1 hr | 0.017 | ppm | 0.090 | -- | -- |
| 09/21/22 09:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 09/21/22 10:00 | O3 | 1 hr | 0.027 | ppm | 0.090 | -- | -- |
| 09/21/22 11:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/21/22 12:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/21/22 13:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/21/22 14:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 09/21/22 15:00 | O3 | 1 hr | 0.026 | ppm | 0.090 | -- | -- |
| 09/21/22 16:00 | O3 | 1 hr | 0.026 | ppm | 0.090 | -- | -- |
| 09/21/22 17:00 | O3 | 1 hr | 0.027 | ppm | 0.090 | -- | -- |
| 09/21/22 18:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 09/21/22 19:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 09/21/22 20:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 09/21/22 21:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 09/21/22 22:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 09/21/22 23:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 09/22/22 00:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/22/22 01:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/22/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/22/22 03:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/22/22 04:00 | O3 | 1 hr | 0.001 | ppm | 0.090 | -- | -- |
| 09/22/22 05:00 | O3 | 1 hr | 0.001 | ppm | 0.090 | -- | -- |
| 09/22/22 06:00 | O3 | 1 hr | 0.001 | ppm | 0.090 | -- | -- |
| 09/22/22 07:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/22/22 08:00 | O3 | 1 hr | 0.006 | ppm | 0.090 | -- | -- |
| 09/22/22 09:00 | O3 | 1 hr | 0.010 | ppm | 0.090 | -- | -- |
| 09/22/22 10:00 | O3 | 1 hr | 0.012 | ppm | 0.090 | -- | -- |
| 09/22/22 11:00 | O3 | 1 hr | 0.017 | ppm | 0.090 | -- | -- |
| 09/22/22 12:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 09/22/22 13:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 09/22/22 14:00 | O3 | 1 hr | 0.050 | ppm | 0.090 | -- | -- |
| 09/22/22 15:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 09/22/22 16:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/22/22 17:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/22/22 18:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 09/22/22 19:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 09/22/22 20:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/22/22 21:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/22/22 22:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/22/22 23:00 | O3 | 1 hr | 0.011 | ppm | 0.090 | -- | -- |
| 09/23/22 00:00 | O3 | 1 hr | 0.003 | ppm | 0.090 | -- | -- |
| 09/23/22 01:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/23/22 03:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 04:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 05:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 06:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 07:00 | O3 | 1 hr | 0.002 | ppm | 0.090 | -- | -- |
| 09/23/22 08:00 | O3 | 1 hr | 0.005 | ppm | 0.090 | -- | -- |
| 09/23/22 09:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/23/22 10:00 | O3 | 1 hr | 0.013 | ppm | 0.090 | -- | -- |
| 09/23/22 11:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 09/23/22 12:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 09/23/22 13:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/23/22 14:00 | O3 | 1 hr | 0.048 | ppm | 0.090 | -- | -- |
| 09/23/22 15:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/23/22 16:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 09/23/22 17:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 09/23/22 18:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 09/23/22 19:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 09/23/22 20:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/23/22 21:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 09/23/22 22:00 | O3 | 1 hr | 0.019 | ppm | 0.090 | -- | -- |
| 09/23/22 23:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/24/22 00:00 | O3 | 1 hr | 0.012 | ppm | 0.090 | -- | -- |
| 09/24/22 01:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/24/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/24/22 03:00 | O3 | 1 hr | 0.018 | ppm | 0.090 | -- | -- |
| 09/24/22 04:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 09/24/22 05:00 | O3 | 1 hr | 0.012 | ppm | 0.090 | -- | -- |
| 09/24/22 06:00 | O3 | 1 hr | 0.011 | ppm | 0.090 | -- | -- |
| 09/24/22 07:00 | O3 | 1 hr | 0.010 | ppm | 0.090 | -- | -- |
| 09/24/22 08:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/24/22 09:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 09/24/22 10:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 09/24/22 11:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/24/22 12:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 09/24/22 13:00 | O3 | 1 hr | 0.056 | ppm | 0.090 | -- | -- |
| 09/24/22 14:00 | O3 | 1 hr | 0.053 | ppm | 0.090 | -- | -- |
| 09/24/22 15:00 | O3 | 1 hr | 0.052 | ppm | 0.090 | -- | -- |
| 09/24/22 16:00 | O3 | 1 hr | 0.052 | ppm | 0.090 | -- | -- |
| 09/24/22 17:00 | O3 | 1 hr | 0.052 | ppm | 0.090 | -- | -- |
| 09/24/22 18:00 | O3 | 1 hr | 0.046 | ppm | 0.090 | -- | -- |
| 09/24/22 19:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 09/24/22 20:00 | O3 | 1 hr | 0.044 | ppm | 0.090 | -- | -- |
| 09/24/22 21:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 09/24/22 22:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 09/24/22 23:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 09/25/22 00:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 09/25/22 01:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 09/25/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/25/22 03:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 09/25/22 04:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 09/25/22 05:00 | O3 | 1 hr | 0.011 | ppm | 0.090 | -- | -- |
| 09/25/22 06:00 | O3 | 1 hr | 0.009 | ppm | 0.090 | -- | -- |
| 09/25/22 07:00 | O3 | 1 hr | 0.013 | ppm | 0.090 | -- | -- |
| 09/25/22 08:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 09/25/22 09:00 | O3 | 1 hr | 0.013 | ppm | 0.090 | -- | -- |
| 09/25/22 10:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 09/25/22 11:00 | O3 | 1 hr | 0.033 | ppm | 0.090 | -- | -- |
| 09/25/22 12:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/25/22 13:00 | O3 | 1 hr | 0.044 | ppm | 0.090 | -- | -- |
| 09/25/22 14:00 | O3 | 1 hr | 0.052 | ppm | 0.090 | -- | -- |
| 09/25/22 15:00 | O3 | 1 hr | 0.048 | ppm | 0.090 | -- | -- |
| 09/25/22 16:00 | O3 | 1 hr | 0.046 | ppm | 0.090 | -- | -- |
| 09/25/22 17:00 | O3 | 1 hr | 0.047 | ppm | 0.090 | -- | -- |
| 09/25/22 18:00 | O3 | 1 hr | 0.046 | ppm | 0.090 | -- | -- |
| 09/25/22 19:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 09/25/22 20:00 | O3 | 1 hr | 0.095 | ppm | 0.090 | -- | -- |
| 09/25/22 21:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 09/25/22 22:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 09/25/22 23:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/26/22 00:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 09/26/22 01:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 09/26/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 09/26/22 03:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 09/26/22 04:00 | O3 | 1 hr | 0.022 | ppm | 0.090 | -- | -- |
| 09/26/22 05:00 | O3 | 1 hr | 0.007 | ppm | 0.090 | -- | -- |
| 09/26/22 06:00 | O3 | 1 hr | 0.004 | ppm | 0.090 | -- | -- |
| 09/26/22 07:00 | O3 | 1 hr | 0.009 | ppm | 0.090 | -- | -- |
| 09/26/22 08:00 | O3 | 1 hr | 0.022 | ppm | 0.090 | -- | -- |
| 09/26/22 09:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 09/26/22 10:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 09/26/22 11:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 09/26/22 12:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 09/26/22 13:00 | O3 | 1 hr | 0.050 | ppm | 0.090 | -- | -- |
| 09/26/22 14:00 | O3 | 1 hr | 0.050 | ppm | 0.090 | -- | -- |
| 09/26/22 15:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |