Human Indoor Exposure to Airborne Halogenated Flame Retardants: Influence of Airborne Particle Size.

ABSTRACT: Inhalation of halogenated flame-retardants (HFRs) released from consumer products is an important route of exposure. However, not all airborne HFRs are respirable, and thus interact with vascular membranes within the gas exchange (alveolar) region of the lung. HFRs associated with large (>4 µm), inhalable airborne particulates are trapped on the mucosal lining of the respiratory tract and then are expelled or swallowed. The latter may contribute to internal exposure via desorption from particles in the digestive tract. Exposures may also be underestimated if personal activities that re-suspend particles into the breathing zone are not taken into account. Here, samples were collected using personal air samplers, clipped to the participants' shirt collars (n = 18). We observed that the large

SUBMITTER: La Guardia MJ 

PROVIDER: S-EPMC5451958 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature