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In states like Colorado and Washington, the legal limit for drivers is 5 nanograms per milliliter.—Amanda Lee Myers, USA Today, 10 Mar. 2026 His lab measured its morphine concentration at eighty-seven nanograms per millilitre.—Ben Taub, New Yorker, 26 Jan. 2026 An autopsy measured 53,000 nanograms of meth per milliliter of blood in his body.—Logan Smith, CBS News, 10 Jan. 2026 Ng/ml is nanograms per milliliter.—Lucas Waldron, ProPublica, 6 Jan. 2026 See All Example Sentences for nanogram