Follow these steps to query the Ambient Monitoring Program Air Quality Database. More information regarding the contents of this on-line database are available in the AMP database description. A bulk export query is also available, but can be slow due to the volume of data involved.
Data is returned in Local Time, observing Daylight Savings Time, and timestamps displayed correspond to the end of the hour (i.e. hour 02 means 01:00-01:59 EST).