San Pedro Bay Ports Clean Air Action Plan

Carbon Monoxide (CO)

Nitrogen Dioxide (NO₂)

Ozone (O₃) ground-level

PAHs (polycyclic aromatic hydrocarbons)

Coarse Particulate Matter (PM₁₀); (dust, smoke)

Sulfur Dioxide (SO₂)

Ultrafine Particles (UFP)

Data Averaging Periods

CAAP Home > Air Quality > Historical Data - air quality data for past days, weeks and months

All data is preliminary

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* Indicates reading occurred during instrument calibration

Date / Time (PST)	Value	Units	Averaging Period	State Standard	Federal Standard	Air Quality Index
07/29/2010 12:00AM	0.007	ppm	1-hr	0.09	-	-
07/29/2010 01:00AM	0.012	ppm	1-hr	0.09	-	-
07/29/2010 02:00AM	0.014	ppm	1-hr	0.09	-	-
07/29/2010 03:00AM	0.020	ppm	1-hr	0.09	-	-
07/29/2010 04:00AM	0.074*	ppm	1-hr	0.09	-	-
07/29/2010 05:00AM	0.009	ppm	1-hr	0.09	-	-
07/29/2010 06:00AM	0.003	ppm	1-hr	0.09	-	-
07/29/2010 07:00AM	0.010	ppm	1-hr	0.09	-	-
07/29/2010 08:00AM	0.014	ppm	1-hr	0.09	-	-
07/29/2010 09:00AM	0.017	ppm	1-hr	0.09	-	-
07/29/2010 10:00AM	0.028	ppm	1-hr	0.09	-	-
07/29/2010 11:00AM	0.033	ppm	1-hr	0.09	-	-
07/29/2010 12:00PM	0.035	ppm	1-hr	0.09	-	-
07/29/2010 01:00PM	0.040	ppm	1-hr	0.09	-	-
07/29/2010 02:00PM	0.036	ppm	1-hr	0.09	-	-
07/29/2010 03:00PM	0.038	ppm	1-hr	0.09	-	-
07/29/2010 04:00PM	0.031	ppm	1-hr	0.09	-	-
07/29/2010 05:00PM	0.028	ppm	1-hr	0.09	-	-
07/29/2010 06:00PM	0.026	ppm	1-hr	0.09	-	-
07/29/2010 07:00PM	0.024	ppm	1-hr	0.09	-	-
07/29/2010 08:00PM	0.023	ppm	1-hr	0.09	-	-
07/29/2010 09:00PM	0.021	ppm	1-hr	0.09	-	-
07/29/2010 10:00PM	0.020	ppm	1-hr	0.09	-	-