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At the same time it is also recommends that people think about fixing their homes for radon levels between 2 pCi/L and 4 pCi/L. [98] In the United Kingdom the ideal is presence of radon indoors is 100 Bq/m-3. Action needs to be taken in homes with 200 Bq/m −3 or more. [99]
Channel 5 (also known as "Channel 5 with Andrew Callaghan" on YouTube) is an American digital media company and web channel, billed as a "digital journalism experience." [ 2 ] The show is a spinoff of the group's previous project, All Gas No Brakes , which was itself based on the book of the same name.
In October 2023 the average level of CO 2 in Earth's atmosphere, adjusted for seasonal variation, was 422.17 parts per million by volume (ppm). [13] Figures are published monthly by the National Oceanic & Atmospheric Administration (NOAA). [14] [15] The value had been about 280 ppm during the 10,000 years up to the mid-18th century. [2] [3] [4]
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The AQI level is based on the level of six atmospheric pollutants, namely sulfur dioxide (SO 2), nitrogen dioxide (NO 2), suspended particulates smaller than 10 μm in aerodynamic diameter (PM 10), [19] suspended particulates smaller than 2.5 μm in aerodynamic diameter (PM 2.5), [19] carbon monoxide (CO), and ozone (O 3) measured at the ...
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A recent study of 163 households in two rural Chinese counties reported geometric mean indoor PM 2.5 concentrations of 276 μg/m 3 (combinations of different plant materials, including wood, tobacco stems, and corncobs), 327 μg/m 3 (wood), 144 μg/m 3 (smoky coal), and 96 μg/m 3 (smokeless coal) for homes using a variety of different fuel ...
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