In May 2016, the UK Nanosafety Group (UKNSG) published a second edition of its guidance document, Working Safely with Nanomaterials in Research & Development.  The second edition of the guidance provides updates to account for changes in legislation, recent studies in the literature, and best practice since 2012.  In particular, according to the guidance,

The United Kingdom’s Health and Safety Laboratory (HSL) of the Health and Safety Executive (HSE) prepared a report entitled Summary of work undertaken to assess workplace exposure and control measures during the manufacture and handling of engineered nanomaterials.  The report notes that HSE and HSL attempted to identify and engage with companies that manufactured