28 Mar '12, 3pm

Toxicological Riddles: The Case of Boric Acid: ol, ul { list-style-position: outside; list-style-type:

Cellulose insulation, for instance, is one area where significant dust during installation and remodeling could be problematic--or it might not be. A NIOSH study from 2005 concluded that the amount of respirable dust from cellulose insulation installation is typically low (there may be a lot of dust but most of it isn't the right size to get into the lungs), and so they concluded additional studies on lab animals weren't needed. The gist was that installation dust can cause eye and nasal irritation, but isn't going to create lower respiratory conditions. However, most of that respirable fraction is flame retardants, and the eye and nose irritation may be from these additives. Additionally, the study made clear "the animal pulmonary toxicity studies and worker health surveys focused on acute [cellulose insulation] exposures and do not preclude the possibility of toxicity re...

Full article: http://www.buildinggreen.com/live/index.cfm/2012/3/28/Tox...

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