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May 20, 2021

NIOSH CIB on Health Effect of Occupational Exposure to Silver Nanomaterials Includes REL for Silver Nanomaterials

The National Institute for Occupational Safety and Health (NIOSH) has published Current Intelligence Bulletin 70: Health Effects of Occupational Exposure to Silver Nanomaterials. According to the Current Intelligence Bulletin (CIB), NIOSH assessed potential health risk from exposure to silver nanomaterials by evaluating more than 100 studies of silver nanomaterials in animals or cells. The CIB states that recent studies in animals have demonstrated that biologic activity and potential...
January 12, 2021

SCCS Opinion on the Safety of Nanomaterials in Cosmetics Includes Prioritized List of Nanomaterials for Risk Assessment

On January 11, 2021, the European Commission’s (EC) Scientific Committee on Consumer Safety (SCCS) posted a final opinion entitled Scientific Advice on the Safety of Nanomaterials in Cosmetics.  The EC requested that SCCS determine the nanomaterials, as published in the 2019 catalogue of nanomaterials, for which specific concerns can be identified and justified to establish a priority list of nanomaterials for risk assessment (Article 16(4) Reg. 1223/2009).  The final opinion...
May 13, 2020

WHO Publishes Principles and Methods to Assess Risk of Immunotoxicity Associated with Exposure to Nanomaterials

On April 12, 2020, the World Health Organization (WHO) published Environmental Health Criteria 244:  Principles and methods to assess the risk of immunotoxicity associated with exposure to nanomaterials.  WHO states that the document presents an overview of the current knowledge and evidence on principles and basic mechanisms of immunotoxicity caused by engineered nanomaterials (ENM).  The document provides guidance on principles and methods for hazard and risk assessment of...
August 2, 2019

Nordic Council of Ministers Publishes Report on Applicability of GHS Classification Criteria to Nanomaterials

In May 2019, the Nordic Council of Ministers published a working paper entitled The applicability of the GHS classification criteria to nanomaterials.  The goal of the project was to review the applicability of the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) to manufactured nanomaterials, taking into account the progress of international scientific work.  The report notes that the Organization for Economic Cooperation and Development (OECD) Working...
January 23, 2019

ECHA Publishes Substance Evaluation Conclusion for Silver

The European Chemicals Agency (ECHA) announced on December 19, 2018, that it published several new substance evaluation conclusion documents, including one for silver.  Silver was added to the Community Rolling Action Plan (CoRAP) list in 2014 and evaluated by the Netherlands.  According to the substance evaluation conclusion and evaluation report, silver was originally selected for substance evaluation to clarify concerns about nanoparticles/ecotoxicity of different forms of the...
November 5, 2018

EC Committee Publishes Final Opinion on Colloidal Silver (Nano)

On October 26, 2018, the European Commission (EC) Scientific Committee on Consumer Safety (SCCS) published its final opinion on colloidal silver (nano).  According to the final opinion, the EC received 63 notifications of cosmetic products containing colloidal silver in nano form.  The final opinion states that, according to the applicants, the ingredient is used in nano uncoated form both in leave-on and rinse-off oral cosmetics products, including toothpastes and skin care products, with a...
September 19, 2018

NIOSH Publishes Revised Draft CIB on Health Effects of Occupational Exposure to Silver Nanomaterials, Will Hold Online Meeting

On September 18, 2018, the National Institute for Occupational Safety and Health (NIOSH) published a Federal Register notice announcing the availability of a draft document entitled Current Intelligence Bulletin:  Health Effects of Occupational Exposure to Silver Nanomaterials.  As reported in our January 22, 2016, blog item, NIOSH published a draft Current Intelligence Bulletin (CIB) on silver nanomaterials on January 21, 2016.  According to the...
September 21, 2011

SNWG Releases Statement Concerning Nanosilver

The Silver Nanotechnology Working Group (SNWG) recently prepared a statement concerning nanosilver and its long history of safe and regulated use. SNWG notes the similarities between nanosilver and other antimicrobial silver materials available in the marketplace.  SNWG states that it “has interacted with the [U.S. Environmental Protection Agency (EPA)] in challenged exchanges on how best to regulate nanopesticides leading to a clear, reasonable, and responsible path for...
May 24, 2011

SNWG Responds to BfR’s Statement Concerning Nanosilver

The Silver Nanotechnology Working Group (SNWG) prepared a May 2, 2011, statement regarding the German Federal Institute for Risk Assessment’s (BfR) April 12, 2011, statement concerning consumer products containing nanosilver. SNWG notes that, in December 2009, BfR published an opinion advising against the use of nanosilver in consumer products. Industry and other groups, including SNWG, asked BfR to reconsider its position, and BfR held a workshop on February 17,...
April 26, 2011

Scientists Investigate Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant

Environmental Science & Technology posted on April 5, 2011, an article entitled “Behavior of Metallic Silver Nanoparticles in a Pilot Wastewater Treatment Plant.” The abstract states: We investigated the behavior of metallic silver nanoparticles (Ag-NP) in a pilot wastewater treatment plant (WWTP) fed with municipal wastewater.  The treatment plant consisted of a nonaerated and an aerated tank and a secondary clarifier.  The average hydraulic retention time including...