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  2. Indoor air quality - Wikipedia

    en.wikipedia.org/wiki/Indoor_air_quality

    In the United States, it is recommend to fix homes with radon levels at or above 4 pCi/L. 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.

  3. WELL Building Standard - Wikipedia

    en.wikipedia.org/wiki/WELL_Building_Standard

    The maximum tpma (out) must be under 33.5 degrees Celsius and indoor temperature of 31% of the tpma (out) plus 21.3 degrees Celsius. For example, the tpma (out) 33.5 degrees Celsius, the indoor temperature shall not be over 31.7 degrees Celsius. If tpma (out) is over than 33.5 degrees Celsius then a mechanically conditioned space would be in place.

  4. Phosphogypsum - Wikipedia

    en.wikipedia.org/wiki/Phosphogypsum

    The construction industry is the number one user of phosphogypsum in 2020, with 10.5 Mt used as concrete set retarder and 3.5 Mt used in drywall. [13] It is also used as a chemical feedstock for producing sulfates , and as a soil conditioner similar to regular gypsum. [ 14 ]

  5. Health effects of radon - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_radon

    This means that a person living in an average European dwelling with 50 Bq/m 3 has a lifetime excess lung cancer risk of 1.53 × 10 −3. Similarly, a person living in a dwelling with a high radon concentration of 1000 Bq/m 3 has a lifetime excess lung cancer risk of 3–6%, implying a doubling of background lung cancer risk. [63]

  6. Background radiation - Wikipedia

    en.wikipedia.org/wiki/Background_radiation

    Radon is thus assumed to be the second leading cause of lung cancer after smoking, and accounts for 15,000 to 22,000 cancer deaths per year in the US alone. [9] [better source needed] However, the discussion about the opposite experimental results is still going on. [10] About 100,000 Bq/m 3 of radon was found in Stanley Watras's basement in 1984.

  7. Pollution in California - Wikipedia

    en.wikipedia.org/wiki/Pollution_in_California

    A view of Los Angeles covered in smog. Pollution in California relates to the degree of pollution in the air, water, and land of the U.S. state of California.Pollution is defined as the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a faster rate than it can be dispersed, diluted, decomposed, recycled, or ...

  8. Acid Rain Program - Wikipedia

    en.wikipedia.org/wiki/Acid_Rain_Program

    The EPA has used what is called the Integrated Planning Model (IPM) to estimate the effect of the Acid Rain Program (ARP). The output from the model says that annual emissions of sulfur dioxide were reduced by 8 million tons (from 17.3 to 9.3), nitrogen oxides by 2.7 million tons (from 7.6 to 5), and mercury by 10 tons (from 52 to 42).

  9. Water quality - Wikipedia

    en.wikipedia.org/wiki/Water_quality

    [3] The burden of polluted drinking water disproportionally effects under-represented and vulnerable populations. [ 11 ] Communities that lack these clean drinking-water services are at risk of contracting water-borne and pollution-related illnesses like Cholera, diarrhea , dysentery, hepatitis A, typhoid, and polio. [ 12 ]

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