Draft technical document guidelines for Canadian drinking water quality - Antimony: Canadian water quality data
Region | River basin | Number of samples | Number of detectsFootnote a | Median (μg/L) | Mean (μg/L) | 90th percentile (μg/L) | Maximum (μg/L) |
East | Maritime Coast | 2,139 | 1,669 | 0.03 | 0.03 | 0.05 | 0.29 |
Newfoundland-Labrador | 2,138 | 1,669 | 0.015 | 0.0365 | 0.093 | 1.41 | |
North Shore-Gaspé | 52 | 51 | 0.007 | 0.0095 | 0.021 | 0.057 | |
Saint John-St. Croix | 158 | 156 | 0.04 | 0.0436 | 0.06 | 0.22 | |
Central | Winnipeg | 109 | 109 | 0.059 | 0.0635 | 0.076 | 0.181 |
Prairie | Assiniboine-Red | 1,036 | 1,035 | 0.27 | 0.2938 | 0.4423 | 3.00 |
Churchill | 346 | 346 | 0.024 | 0.0318 | 0.0433 | 0.861 | |
Lower Saskatchewan-Nelson | 448 | 448 | 0.1335 | 0.1415 | 0.1941 | 0.398 | |
Missouri | 145 | 145 | 0.116 | 0.1303 | 0.2082 | 0.431 | |
North Saskatchewan | 545 | 540 | 0.081 | 0.0969 | 0.2342 | 0.438 | |
South Saskatchewan | 880 | 874 | 0.037 | 0.0796 | 0.1858 | 1.04 | |
Pacific | Columbia | 4,191 | 4,135 | 0.047 | 0.0617 | 0.119 | 0.693 |
Fraser | 3,944 | 3,916 | 0.047 | 0.051 | 0.083 | 3.39 | |
Okanagan-Similkameen | 1,076 | 1,070 | 0.053 | 0.0555 | 0.069 | 0.495 | |
Pacific Coastal | 2,931 | 2,903 | 0.022 | 0.0589 | 0.142 | 1.32 | |
Peace-Athabasca | 817 | 809 | 0.069 | 0.0892 | 0.1852 | 0.952 | |
Arctic | Arctic Coast | 220 | 201 | 0.019 | 0.0443 | 0.1258 | 0.581 |
Keewatin-Southern Baffin Island | 66 | 63 | 0.01 | 0.0324 | 0.1095 | 0.215 | |
Lower Mackenzie | 1,415 | 1,409 | 0.116 | 0.1495 | 0.255 | 6.72 | |
Yukon | 807 | 807 | 0.102 | 0.1251 | 0.1882 | 0.967 | |
Footnotes
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Source: ECCC (2017)
Jurisdiction (MDL μg/L) | Years | Source | # Detects/ samples | % Detection | Mean (μg/L) | 90th percentile (μg/L) | Max (μg/L) |
---|---|---|---|---|---|---|---|
British ColumbiaFootnote 1 (0.02–1) | 2014–2018 | Untreated tap water as well as samples from disturbed locations (for example, mines) | 31/64 | 48 | 0.96 | 0.55 | 11.80 |
ManitobaFootnote 2 (0.1–2) | 2000–2018 | Production and observation wells | 330/646 | 51 | 0.50 | 0.70 | 26.00 |
Nova ScotiaFootnote 3 (2) | 1990–2019 | Groundwater studies | 45/1,886 | 2.4 | NC | < DL | 89.00 |
QuebecFootnote 4 (0.1–6) | 1941–2014 | Various research projects (possible sampling in groundwater of poor quality) | 82/909 | 9.0 | NC | < DL | 9 400 |
Footnotes
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DL – detection limit; < DL – below detection limit (when 90th percentile with < 10% detects) – MDL: method detection limit; NC – not calculated (when % Detection is < 40%)
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