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Portola Valley air quality map

Live air pollution map of Portola Valley

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Most polluted air quality stations

#	station	US AQI
1	4139 Alpine Road	14
2	San Francisquito Creek Road	13
3	Alpine Hills	12
4	Ladera - Lucero and Mimosa	12
5	14 Arastradero	11
6	3249 Alpine Road	11
7	9 Valley Oak Street	11
8	Alhambra Court	11
9	Los Trancos Road	11
10	Millennium farm	11

Health Recommendations

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	Open your windows to bring clean, fresh air indoors GET A MONITOR

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Portola Valley air quality data attribution

25Contributors

25 Anonymous Contributors

25 Anonymous contributors
25 stations

1 Data source

PurpleAir

Data validated and calibrated by IQAir

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