Current Data

* The Coastal Boundary station was suspended in April 2020 (until further notice) due to future construction at the wharf.
* The Source-Dominated station was suspended in May 2021 (until further notice).
* ALL DATA IS PRELIMINARY. DATA IS PRESENTED IN PACIFIC STANDARD TIME EVEN DURING DAYLIGHT SAVINGS TIME.

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Inner Harbor - O3 (1 hr)

 
Monitored ParameterAveraging PeriodCurrent ValueUnitsState StandardFederal Standard
O3 11207778 1 hr 0.030 ppm 0.090 --
O3 11207779 8 hr 0.033 ppm 0.070 0.070
PM10 11207781 24 hr 23.5 ug/m3 50.0 150.0
PM2.5 11207783 24 hr 8.5 ug/m3 -- 35.0
NO2 11207784 1 hr 0.005 ppm 0.180 0.100
CO 11207785 1 hr 0.2 ppm 20.0 35.0
CO 11207786 8 hr 0.2 ppm 9.0 9.0
SO2 11207787 1 hr 0.002 ppm -- 0.075
SO2 11207788 24 hr 0.003 ppm 0.040 0.140
Wind Speed 11207789 1 hr 1.9 mph -- --
Wind Direction 11207790 1 hr NW direction -- --
BC 11207875 1 hr 0.214 ug/m3 -- --
BC 11207876 24 hr 0.550 ug/m3 -- --
Temperature 11207791 1 hr 64.4° deg F -- --
Relative Humidity 11207792 1 hr 76.3 % -- --
Rain 11207793 1 hr 0.00 in -- --
Rain-Daily 11207794 Daily Total 0.00 in -- --
Rain-Monthly 11207795 Monthly Total 0.01 in -- --
Rain-Annual 11207796 Annual Total -- in -- --