A smog alert
day is any day with more than moderate AQI (USG or above)
Note:This information is published as soon as the values are detected,
and does not imply
that the data have passed quality assurance validation
procedures. If no forecasts were made during a given month,
that month is omitted from the calendar below.
Click here for more detailed year to date forecast information.
Click below to select yearly forecast / AQI values for past years.