WHAT WE KNOW
Recent evaluations of current methods for exposure
measurement and control have generally shown that
these are effective in reducing exposure of workers to
nanomaterials (Methner, 2008; NIOSH, 2009a). The
next step is to evaluate if these exposure controls are
sufficiently health protective, which requires linkage
to hazard data and risk estimates. In some cases
(e.g. CNT), more sensitive sampling and analytical
methods may need to be developed (NIOSH, 2010c).
Examples of the state-of-the-science and specific
research gaps at each stage of a comprehensive OSH
process (Fig. 1) are suggested in Tables 1–3.