Historical Data
* The Port of Los Angeles is in the process of upgrading its four air monitoring stations with new equipment. The new, upgraded instrumentation will be delivered and installed once the City's procurement process is complete, which is expected to be by the end of summer 2022. In the meantime, the San Pedro and Wilmington Community stations continue to be operational with existing equipment, with nearly all parameters being measured. The Coastal Boundary and Source-Dominated stations are partially operational, with real-time particulate matter and/or black carbon measured at these stations. Data for the parameters currently measured at the four stations continue to be uploaded to this monitoring website.
* 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 |
|---|---|---|---|---|---|---|---|
| 05/15/22 00:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 05/15/22 01:00 | O3 | 1 hr | 0.017 | ppm | 0.090 | -- | -- |
| 05/15/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/15/22 03:00 | O3 | 1 hr | 0.022 | ppm | 0.090 | -- | -- |
| 05/15/22 04:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 05/15/22 05:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 05/15/22 06:00 | O3 | 1 hr | 0.020 | ppm | 0.090 | -- | -- |
| 05/15/22 07:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 05/15/22 08:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 05/15/22 09:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 05/15/22 10:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/15/22 11:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/15/22 12:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 05/15/22 13:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/15/22 14:00 | O3 | 1 hr | 0.048 | ppm | 0.090 | -- | -- |
| 05/15/22 15:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/15/22 16:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/15/22 17:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 05/15/22 18:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/15/22 19:00 | O3 | 1 hr | 0.033 | ppm | 0.090 | -- | -- |
| 05/15/22 20:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/15/22 21:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 05/15/22 22:00 | O3 | 1 hr | 0.016 | ppm | 0.090 | -- | -- |
| 05/15/22 23:00 | O3 | 1 hr | 0.017 | ppm | 0.090 | -- | -- |
| 05/16/22 00:00 | O3 | 1 hr | 0.015 | ppm | 0.090 | -- | -- |
| 05/16/22 01:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/16/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/16/22 03:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/16/22 04:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 05/16/22 05:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/16/22 06:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/16/22 07:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/16/22 08:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/16/22 09:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/16/22 10:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/16/22 11:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/16/22 12:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/16/22 13:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/16/22 14:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/16/22 15:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 05/16/22 16:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/16/22 17:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/16/22 18:00 | O3 | 1 hr | 0.027 | ppm | 0.090 | -- | -- |
| 05/16/22 19:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 05/16/22 20:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/16/22 21:00 | O3 | 1 hr | 0.019 | ppm | 0.090 | -- | -- |
| 05/16/22 22:00 | O3 | 1 hr | 0.004 | ppm | 0.090 | -- | -- |
| 05/16/22 23:00 | O3 | 1 hr | 0.009 | ppm | 0.090 | -- | -- |
| 05/17/22 00:00 | O3 | 1 hr | 0.021 | ppm | 0.090 | -- | -- |
| 05/17/22 01:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/17/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/17/22 03:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/17/22 04:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/17/22 05:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/17/22 06:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/17/22 07:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/17/22 08:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/17/22 09:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/17/22 10:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/17/22 11:00 | O3 | 1 hr | 0.033 | ppm | 0.090 | -- | -- |
| 05/17/22 12:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/17/22 13:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/17/22 14:00 | O3 | 1 hr | 0.034 | ppm | 0.090 | -- | -- |
| 05/17/22 15:00 | O3 | 1 hr | 0.033 | ppm | 0.090 | -- | -- |
| 05/17/22 16:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/17/22 17:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/17/22 18:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/17/22 19:00 | O3 | 1 hr | 0.029 | ppm | 0.090 | -- | -- |
| 05/17/22 20:00 | O3 | 1 hr | 0.027 | ppm | 0.090 | -- | -- |
| 05/17/22 21:00 | O3 | 1 hr | 0.025 | ppm | 0.090 | -- | -- |
| 05/17/22 22:00 | O3 | 1 hr | 0.013 | ppm | 0.090 | -- | -- |
| 05/17/22 23:00 | O3 | 1 hr | 0.026 | ppm | 0.090 | -- | -- |
| 05/18/22 00:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/18/22 01:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/18/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/18/22 03:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/18/22 04:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/18/22 05:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/18/22 06:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/18/22 07:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/18/22 08:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/18/22 09:00 | O3 | 1 hr | 0.033 | ppm | 0.090 | -- | -- |
| 05/18/22 10:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/18/22 11:00 | O3 | 1 hr | 0.032 | ppm | 0.090 | -- | -- |
| 05/18/22 12:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/18/22 13:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/18/22 14:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/18/22 15:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/18/22 16:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/18/22 17:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 05/18/22 18:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/18/22 19:00 | O3 | 1 hr | 0.024 | ppm | 0.090 | -- | -- |
| 05/18/22 20:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/18/22 21:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/18/22 22:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/18/22 23:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/19/22 00:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/19/22 01:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/19/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/19/22 03:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 04:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 05/19/22 05:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/19/22 06:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/19/22 07:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/19/22 08:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/19/22 09:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/19/22 10:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 11:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 12:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/19/22 13:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/19/22 14:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/19/22 15:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/19/22 16:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 17:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 05/19/22 18:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 19:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/19/22 20:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/19/22 21:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/19/22 22:00 | O3 | 1 hr | 0.043 | ppm | 0.090 | -- | -- |
| 05/19/22 23:00 | O3 | 1 hr | 0.044 | ppm | 0.090 | -- | -- |
| 05/20/22 00:00 | O3 | 1 hr | 0.045 | ppm | 0.090 | -- | -- |
| 05/20/22 01:00 | O3 | 1 hr | 0.044 | ppm | 0.090 | -- | -- |
| 05/20/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/20/22 03:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/20/22 04:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/20/22 05:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/20/22 06:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/20/22 07:00 | O3 | 1 hr | 0.038 | ppm | 0.090 | -- | -- |
| 05/20/22 08:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/20/22 09:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 05/20/22 10:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/20/22 11:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/20/22 12:00 | O3 | 1 hr | 0.042 | ppm | 0.090 | -- | -- |
| 05/20/22 13:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/20/22 14:00 | O3 | 1 hr | 0.041 | ppm | 0.090 | -- | -- |
| 05/20/22 15:00 | O3 | 1 hr | 0.039 | ppm | 0.090 | -- | -- |
| 05/20/22 16:00 | O3 | 1 hr | 0.040 | ppm | 0.090 | -- | -- |
| 05/20/22 17:00 | O3 | 1 hr | 0.035 | ppm | 0.090 | -- | -- |
| 05/20/22 18:00 | O3 | 1 hr | 0.036 | ppm | 0.090 | -- | -- |
| 05/20/22 19:00 | O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| 05/20/22 20:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/20/22 21:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/20/22 22:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/20/22 23:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |
| 05/21/22 00:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/21/22 01:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/21/22 02:00 | O3 | 1 hr | -- | ppm | 0.090 | -- | -- |
| 05/21/22 03:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/21/22 04:00 | O3 | 1 hr | 0.031 | ppm | 0.090 | -- | -- |
| 05/21/22 05:00 | O3 | 1 hr | 0.028 | ppm | 0.090 | -- | -- |
| 05/21/22 06:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 05/21/22 07:00 | O3 | 1 hr | 0.023 | ppm | 0.090 | -- | -- |
| 05/21/22 08:00 | O3 | 1 hr | 0.030 | ppm | 0.090 | -- | -- |