File:YearlyAvgConcentrationLevels.PNG
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Size of this preview: 800 × 477 pixels. Other resolutions: 320 × 191 pixels | 1,750 × 1,043 pixels.
Original file (1,750 × 1,043 pixels, file size: 55 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:12, 11 November 2018 | 1,750 × 1,043 (55 KB) | Minoo.ye.2015 (talk | contribs) |
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