Scientists appeal for California to set low ceiling for acceptable BPA exposure

By Gayle S. Putrich
Staff Reporter

Published: April 12, 2013 2:52 pm ET
Updated: April 12, 2013 3:19 pm ET

Related to this story

Topics Sustainability, Public Policy, Materials, Materials Suppliers, Government & Legislation
Companies & Associations American Chemistry Council

WASHINGTON — As a California panel prepares to consider adding bisphenol A to a list of toxic chemicals, a group of 22 scientists is appealing to the state to set a low ceiling for acceptable exposure levels in addition to listing BPA as harmful under Proposition 65.

The currently suggested maximum allowable dose level (MADL) is 290 micrograms of BPA per day. The group of scientists recommend a MADL of no higher than 50 micrograms per kilogram of body weight per day, said Dr. Csaba Leranth of Yale University’s neurobiology and obstetrics, gynecology, and reproductive sciences departments.

If California’s Office of Environmental Health Hazard Assessment (OEHHA) classifies BPA as a harmful substance, it will also have to approve a suggested baseline level of BPA exposure and any product that could expose consumers to more than that amount must be labeled as potentially harmful.

“We believe that setting a MADL that is consistent with current science and is health-protective is urgent and of utmost importance,” says the letter, which also lists 10 examples from recent animal studies showing harmful effects at one-twelfth the dose or less than the proposed California level.

Leranth said his most recent research, among other studies, shows intrauterine exposure to BPA, even in very low doses, does long-term damage to the brains of primate and human babies.

“I am not a politician, I am not a crusader, I just do my job. And these are the results of the research I have done: Even in very, very low values, [BPA] is harmful,” Leranth said. “Bisphenol A, it is ubiquitous. Not only in the food because of the lining in tin cans, but also in the air. Think of the dust in the factories and the workers, the people who work in the plastic factories.”

In July 2009, OEHHA’s Developmental and Reproductive Toxicant Identification Committee voted unanimously that BPA did not belong on the Prop 65 list, based largely on the findings from a 2008 report by the National Toxicology Program.

The American Chemistry Council of Wash¬- ington filed a lawsuit in March to prevent the current attempt to add BPA to the list, saying the move amounts to circumventing the state’s scientific proc¬ess by allowing administrative staff to override the decision of a scientific panel from 2009, particularly since no new information or studies will be considered. ACC is concerned that adding BPA to the list, even with a MADL set so high that little to no labeling would be required, will cause fear among consumers and manufacturers, which will lead to deselection of polycarbonate.


Comments

Scientists appeal for California to set low ceiling for acceptable BPA exposure

By Gayle S. Putrich
Staff Reporter

Published: April 12, 2013 2:52 pm ET
Updated: April 12, 2013 3:19 pm ET

Post Your Comments


Back to story


More stories

North American Plastics Alliance celebrates three years, and welcomes Anipac

August 20, 2014 1:35 pm ET

Three years ago, the three leading plastics industry associations in the U.S. and Canada formally joined forces to create the North American Plastics ...    More

Image

Automakers look under the hood for the next lightweighting opportunities

August 20, 2014 1:06 pm ET

The automotive industry's current favorite target for lightweighting efforts is the powertrain, according to a recent survey.    More

Image

Small country introducing plastic coins

August 20, 2014 10:48 am ET

You've heard of countries adopting plastic currency, to replace paper money. How about plastic coins, to replace metal? It's hard to believe but true....    More

Image

GameDay Challenge expands the competition to the recycling bin

August 20, 2014 10:23 am ET

GameDay Recycling Challenge is returning this year as college football stadiums will compete to see which school produces the least amount of waste...    More

Image

Pactiv selling building products unit to Ireland's Kingspan

August 19, 2014 3:54 pm ET

Irish building material manufacturer Kingspan Group plc is acquiring the insulation business of Lake Forest, Ill.-based Pactiv Building Products for $...    More

Market Reports

Thermoformed Packaging 2014 Market Review & Outlook North America

This in-depth report analyzes economic and market trends, legislative/regulatory activity impacting supply and demand, business opportunities and threats, materials pricing, manufacturing technology, as well as growth strategies being implemented by thermoformed packaging companies.

Learn more

Pipe, Profile & Tubing Extrusion in North America 2014

U.S. demand for extruded plastics is expected to grow by 3 percent in 2014, with PVC remaining the largest segment.

Plastic pipe will post the strongest gains through 2018, continuing to take market share from competing materials in a range of markets.

Our latest market report provides in-depth analysis of current trends and their financial impact on the pipe, profile and tubing extrusion industry in North America.

Learn more

2014 Injection Molding Industry Report

GROWTH, OPPORTUNITY IN SIGHT FOR INJECTION MOLDERS IN 2014

In the wake of the economic turbulence earlier in this decade, molders today find themselves in much better shape. Molders are gaining a competitive advantage by investing in people, equipment and seeking inroads into new markets on a global scale.

Growth in the injection molding industry is going to be driven by low financing costs and a continued move to reshore some business.

Learn more

Upcoming Plastics News Events

September 10, 2014 - September 12, 2014Plastics Caps & Closures 2014

January 14, 2015 - January 14, 2015Plastics in Automotive

February 4, 2015 - February 6, 2015Plastics News Executive Forum 2015

More Events