Abstract
An attempt is made to outline the evidence available for assessing the current impacts of acidic deposition on aquatic ecosystems in Canada. Most of the aquatic ecosystems of eastern Canada have limited capability of assimilating strong acids. In regions where the deposition of these acids exceeds 40 meq m/sup -2/ yr/sup -1/, there is considerable evidence of long-term increases in the SO/sub 4//sup 2 -/ concentrations of lakes and rivers, some evidence of long-term decreases in pH and acid neutralizing capacity (ANC), and some indirect evidence that cation concentrations have increased. Short-term decreases in the pH and ANC of lakes and streams during the snowmelt period in Ontario have been well-documented. The time-frame over which more substantial changes in aquatic chemistry are likely to occur is unknown.
Citation Formats
Dillon, P J.
Chemical alterations of surface waters by acidic deposition in Canada.
Canada: N. p.,
1985.
Web.
Dillon, P J.
Chemical alterations of surface waters by acidic deposition in Canada.
Canada.
Dillon, P J.
1985.
"Chemical alterations of surface waters by acidic deposition in Canada."
Canada.
@misc{etde_5201391,
title = {Chemical alterations of surface waters by acidic deposition in Canada}
author = {Dillon, P J}
abstractNote = {An attempt is made to outline the evidence available for assessing the current impacts of acidic deposition on aquatic ecosystems in Canada. Most of the aquatic ecosystems of eastern Canada have limited capability of assimilating strong acids. In regions where the deposition of these acids exceeds 40 meq m/sup -2/ yr/sup -1/, there is considerable evidence of long-term increases in the SO/sub 4//sup 2 -/ concentrations of lakes and rivers, some evidence of long-term decreases in pH and acid neutralizing capacity (ANC), and some indirect evidence that cation concentrations have increased. Short-term decreases in the pH and ANC of lakes and streams during the snowmelt period in Ontario have been well-documented. The time-frame over which more substantial changes in aquatic chemistry are likely to occur is unknown.}
journal = []
volume = {8:3}
journal type = {AC}
place = {Canada}
year = {1985}
month = {Jan}
}
title = {Chemical alterations of surface waters by acidic deposition in Canada}
author = {Dillon, P J}
abstractNote = {An attempt is made to outline the evidence available for assessing the current impacts of acidic deposition on aquatic ecosystems in Canada. Most of the aquatic ecosystems of eastern Canada have limited capability of assimilating strong acids. In regions where the deposition of these acids exceeds 40 meq m/sup -2/ yr/sup -1/, there is considerable evidence of long-term increases in the SO/sub 4//sup 2 -/ concentrations of lakes and rivers, some evidence of long-term decreases in pH and acid neutralizing capacity (ANC), and some indirect evidence that cation concentrations have increased. Short-term decreases in the pH and ANC of lakes and streams during the snowmelt period in Ontario have been well-documented. The time-frame over which more substantial changes in aquatic chemistry are likely to occur is unknown.}
journal = []
volume = {8:3}
journal type = {AC}
place = {Canada}
year = {1985}
month = {Jan}
}