Monitoring > Air

Monitors to measure PCB levels in air were stationed during dredging upwind and downwind of activities in the Upper Hudson, and continue to be used around the perimeter of the Processing, Treatment and Transportation Facility located north of Lock 7 along the Champlain Canal.

In the river, when dredging activities ceased in a particular area, air samples were no longer collected there until dredging began again. All of the data collected by GE to assess compliance with EPA's standard for air quality was submitted to EPA on a daily basis.

To view air quality data collected near dredging activities, click on any of the numbers in the map below. A list of monitoring locations closest to that area -- represented by the green dots on the map -- will appear. Then click on a location to view all the data collected from that monitoring location since dredging began in May 2009.

To view air quality data collected from the processing facility, click on any of the links listed below the river map.

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