Office of Health and Environment Assessment, US Environmental Protection Agency, Washington, DC USEPA (2009) Risk assessment guidance for superfund volume I: human health evaluation manual (Part F, Supplemental guidance for inhalation risk assessment), Washington DC USEPA (2011) Exposure Factors Handbook 2011 Edition (Final Report)
Combination NRT is a patch (which is long-acting) plus a short-acting agent (like gum, lozenges, inhaler, or nasal spray), and is more effective than a single form of NRT alone
Both infest dry goods, herbs, grains and spices, so correct identification is the first step toward control
One section, larger, is made of pure acetate fiber, and the second, smaller, is made of fiber with a generous filling of charcoal crumbs