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. 2024 Apr 11;11:370. doi: 10.1038/s41597-024-03165-8

Table 1.

Summary of data sources used.

Type Source Spatial coverage Temporal coverage n Sites
Ca pH
FAD Environment and Climate Change Canada28 Canada, AK 2000–2019 282 279
FAD Environment and Climate Change Canada29 ON 2000–2018 4172 4357
FAD Environment and Climate Change Canada30 Canada 2002–2018 — 267
FAD USGS31 AK,YT 2009–2014 85 92
PDR Atlantic DataStream41–93 NB,NL,NS,PE 2000–2020 555 2214
PDR Mackenzie DataStream52,94–115 AB,BC,NT,YT 2000–2018 480 707
PDR Water Quality Portal125 USA 2000–2021 76013 188951
PTA‡ Government of Alberta32 AB 2000–2020 254 302
PTA Government of British Columbia33 BC 2000–2020 2903 3033
PTA† Government of Manitoba MB 2011–2018 262 302
PTA Government of New Brunswick34 NB 2000–2020 635 663
PTA Government of Newfoundland and Labrador35 NL 2019–2020 — 29
PTA Government of Nova Scotia36 NS 2002–2017 — 5
PTA† Government of the Northwest Territories NT 1982–2021 97 97
PTA† Natural Resources and Forestry Ontario ON 2008–2017 1327 1346
PTA Environment, Conservation and Parks Ontario37 ON 2000–2019 541 594
PTA Government of Prince Edward Island38 PE 2001–2020 72 219
PTA‡ Gouvernement du Québec39 QC 2005–2020 1065 652
PTA‡ Water Security Agency, Saskatchewan40 SK 2010–2020 682 476
PTA† Government of Yukon, Environment Department YT 2010–2021 325 343
PRP Antoniades et al.116,117 NT,NU 1996–2000 86 86
PRP Filazzola et al.118 North of 50°N 1998–2016 — 148
PRP Joynt and Wolfe119 NU 1995 — 56
PRP Michelutti et al.120,121 NT,NU 1997–1998 37 37
PRP Pienitz et al.123 NT 1991 24 24
PRP Ruhland et al.124 NT,NU 1996,1998 53 53
OT 2012 Risk Assessment15, 2004 Acid Deposition Assessment122 AB,BC,MB,NB, NL,NS,ON,QC, SK 1983–2011 8703 4088
OT† Conseil de gouvernance de l’eau des bassins versant de la rivière Saint-François (and partners) QC 2018–2020 116 418
OT† Kivalliq Inuit Association, Crown-Indigenous Relations and Northern Affairs Canada NU 2004–2020 56 54

FAD = Federal Agency Database (Canada/US); PDR = Public Data Repository; PTA = Provincial or Territorial Agency (Canada); PRP = Peer-Reviewed Publication; OT = Other Organisation or Data Source. † data provided directly by agency contacts, not publicly accessible; ‡ includes data provided by agency contacts and publicly accessible agency databases; all other data were obtained from publicly accessible sources.