Customer Service

 Customer Survey

LABConnect™ - Online Results & More

Tutorial | Create Account | Login

Prop 65 Concerns over 4-Methylimidazole

Category Press Release
Publish Date 12/19/2012
Author Paul Cochrane
Title California’s Prop 65 and Public Health Concerns over 4-Methylimidazole
Introduction LA Testing provides analytical services to protect the public and help businesses comply with California’s Proposition 65.

Garden Grove, CA, December 10, 2012

In 1986, California voters approved an initiative to address increasing concerns over exposure to toxic chemicals. That initiative, the Safe Drinking Water and Toxic Enforcement Act of 1986, is better known by its original name of Proposition 65. 

Proposition 65 requires businesses to notify Californians about significant amounts of chemicals in the products they purchase, in their homes or workplaces, or that are released into the environment.  The list includes 4-Methylimidazole, also known as 4-MEI, which was added to the Prop 65 list in January of 2011. 

4-MEI is perhaps best known because it is formed during the production of some caramel coloring agents.  These have been used in popular soft drinks and other food products.  It is also used in the production of some dyes, chemicals, rubber products, and pharmaceuticals.

According to California’s Office of Environmental Health Hazard Assessment (OEHHA), “Studies published in 2007 by the federal government’s National Toxicology Program showed that long-term exposure to 4-MEI resulted in increases in lung cancer in male and female mice.   These findings were the basis for the addition of 4-MEI to California’s Proposition 65 list of carcinogens.  Exposure to high concentrations of 4-MEI (such as concentrations that might occur in industrial settings) is reported to irritate the lungs or burn the eyes and skin.”

LA Testing offers testing services to identify 4-Methylimidazole to help prevent exposure to people of unsafe levels from this potentially harmful chemical in the environment, workplace, and in consumer products.  “According to the State of California, 4-Methylimidazole can cause cancer,” reported Joe Frasca, Senior Vice President, Marketing at LA Testing and EMSL Analytical, Inc.  “EMSL provides consumer product testing, environmental sample analysis, and occupational testing services for this chemical,” he continued. 

To learn more about testing for 4-Methylimidazole or other Proposition 65 testing services, please visit, email or call (800) 755-1794.

About LA Testing and EMSL Analytical, Inc.
LA Testing and EMSL Analytical are providers of environmental testing services and products to professionals and the general public. The companies have an extensive list of accreditations from leading organizations as well as state and federal regulating bodies.

Sorry, this function is disabled.