Question - What are so-called “NIOSH skin notations” and why are they important?
Answer- The cited resource notes “NIOSH skin notations are hazard warnings used worldwide to alert workers and employers to the health risks of skin exposures to chemicals in the workplace.” These are important, in part, because “The National Institute for Occupational Safety and Health (NIOSH) has estimated that workplace skin diseases account for 15%–20% of all reported occupational diseases in the United States, with estimated total annual costs (including lost workdays and lost productivity) up to $1 billion. Skin exposures to chemicals can cause a wide array of injuries and illness including contact dermatitis, immune-mediated responses, and irreversible damage to the skin.” (https://www.cdc.gov/niosh/docs/2009-147/pdfs/2009-147-revised.pdf?id=10.26616/NIOSHPUB2009147revised; accessed December 2019)