March Webinar
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2014 Phone Seminar Series on Green Chemistry co-hosted by the Great Lakes Green Chemistry Network and Michigan Green Chemistry Clearinghouse

“Utility of the Greenscreen® for Safer Chemicals
for nanoscale hazard assessment:
nanosilver case study

Wednesday, March 12, 2014

3:00 PM EST
2:00 PM CST
12 Noon  PST

 Jen Sass


Senior Scientist

Natural Resources Defense Council


As nanomaterials are introduced into new and diverse applications, the need for a standardized method to assess their hazards is increasingly apparent.

To assess the utility of the GreenScreen® method for nanomaterials, hazard assessments were conducted for particulate and nanoparticulate silver of defined composition, shape, size range, and surface chemistry.

Using publicly available information, concern levels for 18 hazard endpoints were assigned to the substances, and then scored based on the GreenScreen criteria.

While challenges remain in the hazard screening of  nanomaterials, the GreenScreen is  a promising tool for this purpose. (Study co-authors: Nancy Linde, Joanne English, Teresa McGrath, Jennifer Sass, Lauren Heine)  VIEW REPORT

Jennifer Sass is a Senior Scientist in NRDC’s Health and Environment program (since 2001), and a Professorial Lecturer at George Washington University. She reviews the science underpinning the regulation of toxic chemicals, and advocates for health-protective regulations consistent with environmental laws. She holds a doctoral degree in Cell Biology from University of Saskatchewan, Canada, and a post-doctoral certificate in Environmental Toxicology from the University of Maryland

Space is limited.
Reserve your Webinar seat now at:

GL Green Chemistry Network Dinner

April 1, 2014

Mallorca Restaurant

1390 W. 9th Street

Cleveland, OH

Join the Great Lakes Green Chemistry Network for a dinner honoring the conference keynote speakers at the wonderful Mallorca restaurant in the Warehouse District of Cleveland. Known for its Spanish and Portuguese cuisine, this dinner served family style with something for everyone is sure to be a great opportunity for relaxing, networking, and getting to know the speakers from the conference in an informal and relaxed setting with great food.

The cost of the dinner is $45.00 complete, alcohol not included. Make your reservation now to assure yourself a seat at the table!

Assessing Alternatives To Toxic Chemicals

Source: Chemical & Engineering News, December 16, 2013
Author: Cheryl Hogue

Eliminating a toxic substance from a product’s ingredients seems like a straightforward way to improve product safety. But when a toxic chemical gets removed from a product, some other substance — or substances — goes in as a replacement to carry out that ingredient’s function, such as softening plastic or helping remove grease. Such a switch is intended to resolve the problem. But in some cases this situation can lead to what is being called “regrettable substitution.”

For example, brake cleaner, which auto mechanics use, once contained chlorinated solvents, primarily methylene chloride. But in the 1990s, pollution control regulations pushed manufacturers of the cleaner to rid their products of chlorinated solvents. In place of these compounds, brake cleaner makers substituted n-hexane, which performs well in their products.

By the late 1990s, physicians began to report that auto mechanics using brake cleaner were suffering nerve damage, according to the Centers for Disease Control & Prevention. Since the 1960s, n-hexane has been known to be neurotoxic. Product makers had swapped chemicals with a significant pollution downside for a substance that posed a serious health risk to workers.

Read more…

TURI’s Note: The TURA Administrative Council has voted to designate methylene chloride as a Higher Hazard Substance.  See TURI’s Policy Analysis for Methylene Chloride.

EPA Releases Data on 1,800 Chemicals

Source: Environmental Leader, December 18, 2013

The EPA announced Tuesday it has released screening data on 1,800 chemicals found in industrial and consumer products, food additives and drugs.The data, which was gathered through a variety of advanced techniques including robotics and high-throughout screening, is available through the EPA’s new interactive Chemical Safety for Sustainability dashboard. The dashboard and the data is part of an ongoing collaboration, known as Tox21, between the EPA, National Institutes of Environmental Health Sciences/National Toxicology Program, National Center for Advancing Translational Sciences and the Food and Drug Administration to improve chemical screening, the agency says.

The vision is for the dashboard to evolve into an iCSS web application that will become the portal to access all EPA computational toxicology research data and studies including aggregated public sources of chemical toxicity data, animal toxicity studies and high-quality chemical structures and annotations.

Read more…


Access the U.S. EPA’s new interactiveChemical Safety for Sustainability dashboard