NanoRelease was started in 2010 to develop self-governed consortia of experts from government, industry, and consumer safety organizations to discuss what we need to know about the measurement of released nanomaterials from consumer products. The goal was to initiate development of nanomaterial release measurement methods within a transparent and trusted process. The activities of two consortia with independent steering committees were supported with funding raised from government, industry, and private foundation sources in US and Canada. So far the project has produced 6 workshops, over a dozen task groups, 16 papers by nearly 60 independent experts, and coordinated methods development work in laboratories around the world.

What we have all done

January 20, 2017 – NanoRelease Data Hub – public release of data from the weathering module of NanoRelease Consumer Products

May 24, 2016 – Invited presentation at NanoTech 2016 to lead off 3 detailed talks from EPA, NIST, and BASF on the current results of NanoRelease Consumer Products methods development

The Sanding Module presentation was given by NIST expert Keana Scott


One of two Weathering Module presentations was given by BASF expert Wendel Wohlleben

Release NanoTech 2016 quer final


Listing of publications for NanoRelease Consumer Products can be found here

Listing of publications for NanoRelease Food Additive can be found here


In 2017 experts of NanoRelease lead an effort with several other consortia activities with similar goals to develop a Technical Report with the intention of capturing current understanding of nanomaterial release from products in commerce.  An international group of experts was assembled, many hoops jumped through, and the first full draft document is now in review by ISO committees in preparation for the May 2019 ISO TC229 WG3 meeting in Sydney, Australia.  The ISO project group is PG29 which is co-led by the US TAG and Canada’s SMC to ISO TC229.

General outcome

In general terms, the multi-nation/stakeholder/discipline consortium approach of the NanoRelease project was useful in developing broad consensus on the state of the science for measuring what is being emitted from use of nanomaterials in commercial products.  Extended discussions by leading experts over several years in consideration of methods needs and in development of specific methods was very useful in building trust across stakeholders and in identifying areas of strength and weakness in current risk management capabilities.

Through the many workshops, webinars, conference calls, and publications of the project, participants reached general agreement that much of the current research literature regarding hazard of nanomaterials does not appear to be related to what is being emitted from actual uses of nanomaterials.  The fact that this agreement seems a common assumption among experts in the field now may be a result of the broad impact of the project and discussions across so many groups within it.

Furthermore, the NanoRelease Consumer Products Steering Committee and participants agreed through actions taken in the project that the first step to bridging the gap between hazard literature and understanding of exposure to nanomaterials is to agree to sampling methods that can be used to determine what materials are released to exposure pathways from uses of nanomaterials.

With nanomaterial risk management it is becoming increasingly apparent that transformations during fabrication and release from uses require the addition of an Exposure Identification step in parallel with traditional Hazard Identification step of risk assessment, preceding Hazard Assessment, Exposure Assessment, and Risk Characterization.  The exposure identification step is needed to identify the possibility of exposure to the nanomaterial forms for which hazard has been identified. Nanomaterials that are put into materials used in commerce are frequently transformed by the use so that the hazard information for pristine nanomaterials is not informative to risk management of MN after use in commerce.