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V08 Physical Activity Spaces and Equipment, providing indoor fitness space at no cost receives 2 points either the space includes two types of exercises or equipment that allow use by at least 5% of occupants at any time or has minimum size of 25 sq. m plus 0.1 sq. m per occupant until 930 sq. m, but WELL also allows if the project gives free ...
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]
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.
[5] [39] Costs for global implementation have been estimated at $1.25 to $2.5 trillion or about 3% of global GDP, with expected economies of scale. [38] Low-cost scalable materials have been developed for widescale implementation, although some challenges toward commercialization remain. [40] [41]
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 ]
In the United States, passive house design was first implemented by Katrin Klingenberg in 2003 when she built a passive home prototype named "The Smith House" in Urbana, Illinois. [26] Later, she and builder Mike Kernagis co-founded the Ecological Construction Laboratory in 2004 to further explore the feasibility of the affordable passive ...
Homes built on a crawl space may benefit from a radon collector installed under a "radon barrier, or membrane" (a sheet of plastic or laminated polyethylene film that covers the crawl space floor). ASTM E-2121 is a standard for reducing radon in homes as far as practicable below 4 picocuries per liter (pCi/L) in indoor air.
Making a radiograph. Industrial radiography is a modality of non-destructive testing that uses ionizing radiation to inspect materials and components with the objective of locating and quantifying defects and degradation in material properties that would lead to the failure of engineering structures.