Inside OSHA reports that the AFL-CIO, United Steelworkers, and Center to Protect Workers Rights recently asked NIOSH to develop a "basic medical screening protocol for industry where workers are faced with potential exposure to nano-sized materials," and to implement a "nanotechnology exposure registry and undertake a full-scale national nanotechnology health surveillance program."

As regular readers may recall, last December NIOSH published an "Interim Guidance for the Medical Screening of Workers Potentially Exposed to Engineered Nanoparticles."  That document found "[n]o substantial link … between occupational exposure to engineered nanoparticles and adverse health effects." Accordingly, NIOSH stated its believe that "insufficient medical evidence exists at this time to recommend the specific medical screening of workers potentially exposed to engineered nanoparticles."