ECOSPECIFIER ISSUES OF CONCERN / RED LIGHTS
Red light comment
Ionizing Radiation: This product may contain fly ash, which falls into the category of Naturally Occurring Radioactive Material (NORM). However its use in building materials has not been shown to raise the level of ionizing radiation above background levels, but it is difficult to be precise because the level of radiation is dependant on the radioactivity of the coal burned. The USGS has done studies showing that the use of fly ash in building materials does not have substantial effect on the level of radioactive exposure from building materials and natural radiation in the environment when used at the levels possible within carpet. There may also be an issue with radon gas build up in poorly ventilated buildings, but has not shown to cause substantial levels and harmful effects in normally ventilated buildings (1-3 air changes per hour) according to the Australian Radiation Protection and Nuclear Safety Agency. (Sources: USGS Fact Sheet FS163-97, October 1997; ARPANSA, Safety Guide for the Management of Naturally Occurring Radioactive Material, August 2008.)
Information last verified on 12th July 2011
Assessment comparison is made against a virgin wool or wool-synthetic carpet unless otherwise stated.