Nano and Other Emerging Chemical Technologies Blog

Nano and Other Emerging Chemical Technologies Blog

Regulatory & legal developments involving nano and other emerging chemical technologies

Tag Archives: CNT

NIOSH Publishes Chapter on Analysis of Carbon Nanotubes and Nanofibers on Filters by Transmission Electron Microscopy

Posted in Federal, Occupational Health and Safety Issues, United States
The National Institute for Occupational Safety and Health (NIOSH) has published a chapter in the fifth edition of the NIOSH Manual of Analytical Methods (NMAM) entitled “Analysis of Carbon Nanotubes and Nanofibers on Mixed Cellulose Ester Filters by Transmission Electron Microscopy.”  The draft chapter provides standardized approaches for the analysis of carbon nanoparticles.  The chapter… Continue Reading

IARC Publishes Monograph on Carbon Nanotubes, Fluoro-Edenite, and Silicon Carbide

Posted in International, Legal/Regulatory Issues
The International Agency for Research on Cancer (IARC) announced on May 19, 2017, publication of Volume 111 of the IARC Monographs, Some Nanomaterials and Some Fibres.  The Monograph contains evaluations of the carcinogenic hazard to humans of fluoro-edenite fibrous amphibole, silicon carbide fibers and whiskers, and carbon nanotubes.  As reported in our November 3, 2014,… Continue Reading

NIOSH Announces Recent Publications on Nanotechnology and Certain Types of Carbon Nanotubes

Posted in Federal, Research, United States
The National Institute for Occupational Safety and Health (NIOSH) recently announced the availability of the following publications: Nanotechnology: Delivering on the Promise is a two-volume American Chemical Society symposium report that discusses advances in nanotechnology and the value of precautionary risk management.  Editors include NIOSH Associate Director for Nanotechnology Charles L. Geraci, Ph.D., CIH.  Lynn… Continue Reading

EPA Promulgates SNUR for Functionalized CNTs (Generic)

Posted in Federal, Legal/Regulatory Issues, Occupational Health and Safety Issues, United States
On May 16, 2016, the U.S. Environmental Protection Agency (EPA) promulgated, through a direct final rule, significant new use rules (SNUR) for 55 chemical substances that were the subject of premanufacture notices (PMN), including functionalized carbon nanotubes (CNT) (generic).  EPA states that it determined that any use of the functionalized CNTs without the use of… Continue Reading

NIOSH Announces Publication of Paper from Industrywide Study on Carbon Nanotube and Nanofiber Exposure

Posted in Federal, Occupational Health and Safety Issues, Research, United States
On April 27, 2015, the National Institute for Occupational Safety and Health (NIOSH) announced publication of “Carbon Nanotube and Nanofiber Exposure Assessments: An Analysis of 14 Site Visits” in Annals of Occupational Hygiene.  The paper is the second report from NIOSH’s Industrywide Study.  According to NIOSH, the findings illustrate which tasks have the highest exposures,… Continue Reading

NNI Publishes Proceedings of Meeting on Carbon Nanotube Commercialization

Posted in Federal, Research, United States
The National Nanotechnology Initiative (NNI) published on March 12, 2015, the proceedings of a September 15, 2014, meeting on “Realizing the Promise of Carbon Nanotubes: Challenges, Opportunities, and the Pathway to Commercialization,” held at the National Aeronautics and Space Administration (NASA) Headquarters.  According to NNI, a number of common themes and potential future research and… Continue Reading

CDC Seeks Comment on Proposed NIOSH Exposure Assessment and Epidemiological Study of U.S. Workers

Posted in Federal, Occupational Health and Safety Issues, Research, United States
The Centers for Disease Control and Prevention (CDC) published a September 20, 2012, Federal Register notice seeking comment on a proposed National Institute for Occupational Safety and Health (NIOSH) exposure assessment and epidemiological study of U.S. workers exposed to carbon nanotubes (CNT) and carbon nanofibers (CNF). The notice states that the proposed research is a cross-sectional… Continue Reading

NIOSH eNews Includes Nanotechnology Update

Posted in Federal, Legal/Regulatory Issues, Occupational Health and Safety Issues, Research, United States
The July 3, 2012, edition of the National Institute for Occupational Safety and Health (NIOSH) eNews includes a nanotechnology update, which states that the critical question to address is whether nanomaterials pose health or safety risks to workers employed in their manufacture and industrial use. The update includes the following “notable recent findings and areas of… Continue Reading

EPA Extends Comment Period for Proposed SNURs

Posted in Federal, Legal/Regulatory Issues, Occupational Health and Safety Issues, United States
The U.S. Environmental Protection Agency (EPA) has announced that, in response to public comments, it will provide the public more time to comment on the December 28, 2011, proposed significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). Of particular interest, seven of the PMN substances’ reported chemical… Continue Reading

EPA Publishes Proposed SNURs for CNTs

Posted in Federal, Legal/Regulatory Issues, Occupational Health and Safety Issues, United States
The U.S. Environmental Protection Agency (EPA) published on December 28, 2011, proposed significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). Of particular interest, seven of the PMN substances’ reported chemical names include the term “carbon nanotube” (CNT) or “CNT.”  EPA states that because of a lack of… Continue Reading

Study Examines Cell Entry of One-Dimensional Nanomaterials

Posted in Research
On September 18, 2011, Nature Nanotechnology posted an article entitled “Cell entry of one-dimensional nanomaterials occurs by tip recognition and rotation.” The authors state that materials with high aspect ratio, such as carbon nanotubes (CNT) and asbestos fibers, have been shown to cause length-dependent toxicity in certain cells because these long materials prevent complete ingestion, which… Continue Reading

NIOSH Seeks Comment on Draft CIB Concerning Occupational Exposure to Carbon Nanotubes and Nanofibers

Posted in Federal, Legal/Regulatory Issues, Occupational Health and Safety Issues, Research, United States
The National Institute for Occupational Safety and Health (NIOSH) released a draft Current Intelligence Bulletin (CIB) entitled Occupational Exposure to Carbon Nanotubes and Nanofibers, which recommends that, until results from research studies can fully elucidate the physicochemical properties of carbon nanotubes (CNT) and carbon nanofibers (CNF) that define their inhalation toxicity, employers should take steps… Continue Reading

CDTSC and EPA Hold Public Workshop on State and Federal Nanomaterial Activities

Posted in Federal, Legal/Regulatory Issues, Research, State, United States
On September 22, 2010, the California Department of Toxic Substances Control (CDTSC) and the U.S. Environmental Protection Agency (EPA) held a public workshop on state and federal nanomaterial activities. During the workshop, CDTSC and EPA discussed the results of California’s data call-in (DCI) for carbon nanotubes (CNT), its plans for future DCIs, and EPA’s efforts related… Continue Reading

EPA Issues Final SNURs for Carbon Nanotubes

Posted in Federal, Legal/Regulatory Issues, United States
On September 17, 2010, the U.S. Environmental Protection Agency (EPA) issued final significant new use rules (SNUR) for two chemical substances that were the subject of premanufacture notices (PMN). The two chemical substances are identified generically as multi-walled carbon nanotubes (MWCNT) (PMN P08177) and single-walled carbon nanotubes (SWCNT) (PMN P08328). Persons who intend to manufacture, import, or… Continue Reading

CDTSC Reschedules Public Workshop on State and Federal Nanomaterial Activities

Posted in Federal, Legal/Regulatory Issues, Research, State, United States
The California Department of Toxic Substances Control (CDTSC) has rescheduled its workshop on state and federal nanomaterial activities for September 22, 2010. CDTSC, the U.S. Environmental Protection Agency (EPA), and the University of California, Los Angeles (UCLA) are cosponsoring the workshop to discuss the results of California’s carbon nanotube (CNT) information call-in, future data call-in requests… Continue Reading

CDTSC Postpones Public Workshop on State and Federal Nanomaterial Activities

Posted in Federal, Legal/Regulatory Issues, State, United States
Due to California’s budget issues and resulting furlough for civil service employees, the California Department of Toxic Substances Control (CDTSC) has postponed its August 13, 2010, workshop on state and federal nanomaterial activities. CDTSC, the U.S. Environmental Protection Agency (EPA), and the University of California, Los Angeles (UCLA) are cosponsoring the workshop to discuss the results… Continue Reading

EPA Proposes a Second SNUR for Multi-Walled Carbon Nanotubes

Posted in Federal, Legal/Regulatory Issues, United States
The U.S. Environmental Protection Agency (EPA) published on February 3, 2010, a proposed significant new use rule (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act (TSCA) for multi-walled carbon nanotubes. The proposed rule would require persons who intend to manufacture, import, or process the substance for an activity that is designated as a significant new… Continue Reading

EPA Extends Comment Period for Proposed CNT SNURs

Posted in Federal, Legal/Regulatory Issues, United States
On January 8, 2010, the U.S. Environmental Protection Agency (EPA) extended until February 8, 2010, the comment period for its November 6, 2009, proposed significant new use rules (SNUR) for multi-walled carbon nanotubes (CNT) and single-walled CNTs.  According to the January 8, 2010, notice, EPA received a request to extend the comment period.  On December… Continue Reading

EPA Proposes SNURs for Carbon Nanotubes

Posted in Federal, Legal/Regulatory Issues, United States
On November 6, 2009, the U.S. Environmental Protection Agency (EPA) proposed significant new use rules (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act (TSCA) for two chemical substances that were the subject of premanufacture notices (PMN). EPA identified the substances generically as multi-walled carbon nanotubes and single-walled carbon nanotubes. According to the notice, these substances… Continue Reading

EPA Withdraws Final SNURs for CNTs

Posted in Federal, Legal/Regulatory Issues, United States
Today’s Federal Register includes a notice from the U.S. Environmental Protection Agency (EPA) withdrawing the June 24, 2009, final significant new use rules (SNUR) for multi- and single-walled carbon nanotubes (CNT). EPA states that it published the final SNURs using direct final rulemaking procedures. Because EPA received a notice of intent to submit adverse comments on the… Continue Reading

EPA Clarifies Final CNT SNURs

Posted in Environmental Issues, Federal, Legal/Regulatory Issues
On July 28, 2009, the U.S. Environmental Protection Agency (EPA) clarified its June 24, 2009, final Significant New Use Rules (SNUR) for multi- and single-walled carbon nanotubes (CNT).  According to EPA, upon review of the final rule, stakeholders asked whether the SNURs applied to all types of CNTs.  EPA responded:   This is not the case.… Continue Reading

EPA Considering Test Rule For Multiwall CNTs

Posted in Federal, Legal/Regulatory Issues, United States
According to a notice in the U.S. Environmental Protection Agency’s (EPA) May 11, 2009, Regulatory Agenda, a Toxic Substances Control Act (TSCA) Section 4(a) test rule “may be needed to determine the health effects” of multiwall carbon nanotubes (CNT). EPA states that the results of the tests that could be required under the rule could assist… Continue Reading

NIOSH Requests Data on CNTs

Posted in Federal, Occupational Health and Safety Issues, United States
On April 8, 2009, the National Institute for Occupational Safety and Health (NIOSH) published a Federal Register notice announcing that it “intends to evaluate the scientific data on carbon nanotubes (CNTs) and develop appropriate communication documents, such as an Alert and/or Current Intelligence Bulletin [CIB], which will convey the potential health risks and recommend measures… Continue Reading

HSE Publishes Information Sheet Regarding the Risk Management of CNTs

Posted in EU Member State, International, Legal/Regulatory Issues, Occupational Health and Safety Issues
On March 6, 2009, the United Kingdom (UK) Health and Safety Executive (HSE) published an information sheet on the risk management of carbon nanotubes (CNT). According to HSE, the information sheet “is specifically about the manufacture and manipulation of carbon nanotubes and has been prepared in response to emerging evidence about the toxicology of these materials. However,… Continue Reading