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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: Sci Total Environ. 2018 Jan 12;625:1606–1614. doi: 10.1016/j.scitotenv.2017.12.336

Table 2.

Average concentration of arsenic (±1 standard deviation) in filtered (<0.45 µm) and unfiltered water samples and aqueous (filtered) arsenic as a percentage of total (unfiltered) in samples collected from surface waters (<2 m) in all study lakes between September 2015 and August 2016 (n = 93).

site filtered As (µg L−1) unfiltered As (µg L−1) % aqueous As
Angle Lake 2.0 (±1.1) 2.2 (±0.9) 91
Lake Killarney 11.4 (±6.0) 16.2 (±7.8) 70
North Lake 1.3 (±0.7) 1.4 (±0.5) 93
Steel Lake 2.3 (±1.6) 3.1 (±2.3) 74