Recent Examples on the WebFor reference, a normal level of lead in a gram of hair is around 4 micrograms or less.—Sarah Kuta, Smithsonian Magazine, 9 May 2024 One of Beethoven’s locks had 258 micrograms of lead per gram of hair and the other had 380 micrograms.—Gina Kolata, New York Times, 6 May 2024 In February, the U.S. Environmental Protection Agency (EPA) began cracking down further on PM2.5, reducing the permissible concentration of the particles from 12 micrograms (or millionths of a gram) per cubic meter of air to 9 micrograms.—Jeffrey Kluger, TIME, 2 May 2024 Until now, the limit had been set to 100 micrograms of silica per cubic meter of air, double the new amount.—Annalisa Merelli, STAT, 16 Apr. 2024 Nationally, the country saw 7.4 micrograms per cubic meter.—Marina Johnson, The Indianapolis Star, 20 Mar. 2024 In September, a test revealed Jaxson’s blood lead levels were 5.2 micrograms of lead per deciliter.—Berkeley Lovelace Jr., NBC News, 28 Feb. 2024 The previous annual standard for particulate matter was 12 micrograms per cubic meter of air.—Kelly Livingston, ABC News, 7 Feb. 2024 Reducing just 5 micrograms per cubic meter (µg/m3) of fine particle pollution can decrease the risk of low birthweight by 15%.—Jeremy Ney, TIME, 9 Apr. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microgram.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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