Acknowledgement
This research was initiated by a grant from the U.S. Environmental Protection Agency (Inferring regional patterns and responses in N and Hg biogeochemistry using two sets of gauged paired-watersheds, USEPA CR 82652401 to Kahl et al., 1998). It has not been subjected to official agency review and therefore does not necessarily reflect the views of the Agency, and no official endorsement should be inferred. The papers in this issue also report on research funded by the U.S. Geological Survey, U.S. National Park Service, Maine Department of Environmental Protection, the University of Maine, and the Senator George J. Mitchell Center for Environmental and Watershed Research at the University of Maine. We thank the many field and laboratory technicians who made this work possible. National Park Service staff provided support and assistance throughout these projects, especially Mary Foley, Kathy Tonnessen, David Manski, Bob Breen, Bill Gawley, and other Acadia National Park staff. Finally, we thank Bruce Wiersma, managing editor, and Betty van Herk, who skillfully guided us through the editorial process.
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Acknowledgements. Environ Monit Assess 126, 1 (2007). https://doi.org/10.1007/s10661-006-9323-5
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DOI: https://doi.org/10.1007/s10661-006-9323-5