Yesterday’s 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 was completed by the end of September 2022. The instrumentation and equipment will be installed as they are delivered, with all installation completed by mid-October 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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| Monitored Parameter | Averaging Period | Max Value | Units | State Standard | Federal Standard | Air Quality Index |
|---|---|---|---|---|---|---|
| O3 | 1 hr | 0.037 | ppm | 0.090 | -- | -- |
| O3 | 8 hr | 0.035 | ppm | 0.070 | 0.070 | Good |
| PM10 | 24 hr | 20.1 | ug/m3 | 50.0 | 150.0 | Good |
| PM2.5 | 24 hr | 7.3 | ug/m3 | -- | 35.0 | Good |
| NO2 | 1 hr | 0.011 | ppm | 0.180 | 0.100 | Good |
| CO | 1 hr | 0.4 | ppm | 20.0 | 35.0 | Good |
| CO | 8 hr | 0.3 | ppm | 9.0 | 9.0 | Good |
| SO2 | 1 hr | 0.002 | ppm | -- | 0.075 | Good |
| SO2 | 24 hr | 0.001 | ppm | 0.040 | 0.140 | -- |
| Wind Speed | 1 hr | 8.1 | mph | -- | -- | -- |
| Wind Direction | 1 hr | SE | direction | -- | -- | -- |
| BC | 1 hr | 0.384 | ug/m3 | -- | -- | -- |
| BC | 24 hr | 0.198 | ug/m3 | -- | -- | -- |
| Temperature | 1 hr | 70.1° | deg F | -- | -- | -- |
| Relative Humidity | 1 hr | 69.0 | % | -- | -- | -- |
| Rain | 1 hr | 0.00 | in | -- | -- | -- |
| Rain-Daily | Daily Total | 0.00 | in | -- | -- | -- |
| Rain-Monthly | Monthly Total | 0.00 | in | -- | -- | -- |
| Rain-Annual | Annual Total | -- | in | -- | -- | -- |