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 > Daily Highs - maximum levels by calendar day

All data is preliminary

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Timeframe: From

* Indicates reading occurred during instrument calibration

Date	Max Value	Units	Averaging Period	State Standard	Federal Standard	Air Quality Index
07/22/2010	0.037	ppm	1-hr	0.09	-	-
07/23/2010	0.038	ppm	1-hr	0.09	-	-
07/24/2010	0.049	ppm	1-hr	0.09	-	-
07/25/2010	0.039	ppm	1-hr	0.09	-	-
07/26/2010	0.038	ppm	1-hr	0.09	-	-
07/27/2010	0.035	ppm	1-hr	0.09	-	-
07/28/2010	0.032	ppm	1-hr	0.09	-	-
07/29/2010	0.040	ppm	1-hr	0.09	-	-