Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991)
We analyzed for trends of acidification related variables from 1983 to 1992 in precipitation concentrations and deposition at six sites and surface water concentrations at 111 sites located from central Ontario to eastern Newfoundland. Precipitation showed significantly decreasing H + and [Formula:...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1995
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f95-020 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-020 |
id |
crcansciencepubl:10.1139/f95-020 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f95-020 2023-12-17T10:44:55+01:00 Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) Clair, T. A. Dillon, P. J. Ion, J. Papineau, M. Jeffries, D. S. Vet, R. J. 1995 http://dx.doi.org/10.1139/f95-020 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-020 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 1, page 197-212 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1995 crcansciencepubl https://doi.org/10.1139/f95-020 2023-11-19T13:39:31Z We analyzed for trends of acidification related variables from 1983 to 1992 in precipitation concentrations and deposition at six sites and surface water concentrations at 111 sites located from central Ontario to eastern Newfoundland. Precipitation showed significantly decreasing H + and [Formula: see text] concentrations and deposition in central and eastern Ontario and at one of two sites in Québec (deposition only). For Ontario surface water sites, only increasing or stable [Formula: see text] trends were observed, and these had both concomitant increasing and decreasing trends for pH and (or) acid-neutralizing capacity (ANC). Despite a considerable number of lakes showing decreasing [Formula: see text] trends in Québec, pH and ANC also decreased. Québec was also the only region showing extensive evidence of increasing [Formula: see text]. The opposite situation was observed in Atlantic Canada lakes where despite increasing [Formula: see text], the dominant trend observed for pH and ANC was increasing. Trends observed for pH and ANC were used to classify the acidification status of our surface water sites: 60 of the 111 sites were found to be stable (i.e., showing no trends), 17 were continuing to acidify, and 34 were improving. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canada Canadian Journal of Fisheries and Aquatic Sciences 52 1 197 212 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Clair, T. A. Dillon, P. J. Ion, J. Papineau, M. Jeffries, D. S. Vet, R. J. Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We analyzed for trends of acidification related variables from 1983 to 1992 in precipitation concentrations and deposition at six sites and surface water concentrations at 111 sites located from central Ontario to eastern Newfoundland. Precipitation showed significantly decreasing H + and [Formula: see text] concentrations and deposition in central and eastern Ontario and at one of two sites in Québec (deposition only). For Ontario surface water sites, only increasing or stable [Formula: see text] trends were observed, and these had both concomitant increasing and decreasing trends for pH and (or) acid-neutralizing capacity (ANC). Despite a considerable number of lakes showing decreasing [Formula: see text] trends in Québec, pH and ANC also decreased. Québec was also the only region showing extensive evidence of increasing [Formula: see text]. The opposite situation was observed in Atlantic Canada lakes where despite increasing [Formula: see text], the dominant trend observed for pH and ANC was increasing. Trends observed for pH and ANC were used to classify the acidification status of our surface water sites: 60 of the 111 sites were found to be stable (i.e., showing no trends), 17 were continuing to acidify, and 34 were improving. |
format |
Article in Journal/Newspaper |
author |
Clair, T. A. Dillon, P. J. Ion, J. Papineau, M. Jeffries, D. S. Vet, R. J. |
author_facet |
Clair, T. A. Dillon, P. J. Ion, J. Papineau, M. Jeffries, D. S. Vet, R. J. |
author_sort |
Clair, T. A. |
title |
Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
title_short |
Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
title_full |
Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
title_fullStr |
Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
title_full_unstemmed |
Regional precipitation and surface water chemistry trends in southeastern Canada (1983–1991) |
title_sort |
regional precipitation and surface water chemistry trends in southeastern canada (1983–1991) |
publisher |
Canadian Science Publishing |
publishDate |
1995 |
url |
http://dx.doi.org/10.1139/f95-020 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-020 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 1, page 197-212 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f95-020 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
52 |
container_issue |
1 |
container_start_page |
197 |
op_container_end_page |
212 |
_version_ |
1785564515891412992 |