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  2. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    The UK standards for schools say that carbon dioxide levels of 800 ppm or lower indicate that the room is well-ventilated. [92] Regulations and standards from around the world show that CO 2 levels below 1000 ppm represent good IAQ, between 1000 and 1500 ppm represent moderate IAQ and greater than 1500 ppm represent poor IAQ. [88]

  3. Carbon dioxide inside can be harmful too - AOL

    www.aol.com/news/2015-11-09-carbon-dioxide...

    New studies show that CO2 inside buildings could be just as harmful as outside.

  4. Zero carbon housing - Wikipedia

    en.wikipedia.org/wiki/Zero_carbon_housing

    There are nevertheless a number of definitions of zero carbon housing, particularly concerning the scope of emissions in the housing lifecycle (eg construction vs operation or refurb), and whether it is acceptable to count off-site emissions reduction (eg due to renewable energy export) or other external reductions against any residual emissions from the house to make it a Net Zero Home.

  5. Passive house - Wikipedia

    en.wikipedia.org/wiki/Passive_house

    The SRC and Leger houses were predated by the Lyngby, Denmark house (1975), developed by the Technical University of Denmark, and several homes were built between 1977 and 1979 based on the Lo-Cal house design (1976) developed by the University of Illinois at Urbana–Champaign.

  6. Household air pollution - Wikipedia

    en.wikipedia.org/wiki/Household_air_pollution

    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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  8. Code for Sustainable Homes - Wikipedia

    en.wikipedia.org/wiki/Code_for_Sustainable_Homes

    The Code for Sustainable Homes was an environmental assessment method for rating and certifying the performance of new homes in United Kingdom. First introduced in 2006, it is a national standard for use in the design and construction of new homes with a view to encouraging continuous improvement in sustainable home building.

  9. Nearly one in eight schools have high levels of CO2 according ...

    www.aol.com/nearly-one-eight-schools-high...

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