Surface water sample measurements of dissolved carbon dioxide in 10 New Hampshire and Massachusetts streams, 2015-2020.

Dissolved carbon dioxide concentration from surface water samples in stream water from 10 stream and river locations in New Hampshire and northeast Massachusetts, from 2015 to 2020. Five sites were part of the New Hampshire EPSCoR High Intensity Aquatic Network, three sites are part of the Plum Island Ecosystems LTER, and two sites are part of long-term monitoring projects of the Oyster River watershed near Durham, NH.