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

Image

PolyOne takes on LED lighting

October 22, 2014 4:23 pm ET

PolyOne Corp. is making inroads into LED lighting applications with its Therma-Tech-brand material technology.    More

Image

Simple lightweighting in packaging, caps not so simple anymore

October 22, 2014 4:16 pm ET

The days of finding simple ways to remove additional weight — and costs — from plastic bottles are over, according to one expert.    More

Image

Bergen International adds manufacturing space, extrusion line

October 22, 2014 3:42 pm ET

Chemical foaming agent manufacturer Bergen International LLC recently doubled its manufacturing capacity, added an extrusion line and laboratory...    More

Image

DuPont materials taking more ground in auto, medical, electronics

October 22, 2014 2:41 pm ET

Materials made by DuPont Co. are making inroads with products ranging from auto coolant pipes to circuit breakers to surgical devices.    More

Image

Unilever uses foaming in new bottle

October 22, 2014 1:35 pm ET

Foaming is a good alternative to thin-walling for reducing plastic use in consumer goods packaging, according to a Unilever plastics expert.    More

Market Reports

Plastics Recycling Trends in North America

This report is a review and analysis of the North American Plastics Recycling Industry, including key trends and statistics based on 2013 performance. We examine market environment factors, regulatory issues, industry challenges, key drivers and emerging trends in post-consumer and post-industrial recycling.

Learn more

Plastics in Mexico - State of the Industry Report

This report analyzes the $20 million dollar plastics industry in Mexico including sales of machinery & equipment, resins and finished products.

Our analysts provide insight on business trends, foreign investment, top end markets and plastics processing activity. The report also provides important data on exports, production, employment and value of plastics products manufactured.

Learn more

Plastics Caps & Closures Market Report

The annual recap of top trends and future outlook for the plastics caps & closures market features interviews with industry thought leaders and Bill Wood’s economic forecast of trends in growing end markets. You will also gain insight on trends in caps design, materials, machinery, molds & tooling and reviews of mergers & acquisitions.

Learn more

Upcoming Plastics News Events

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

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

June 2, 2015 - June 3, 2015Plastics Financial Summit - Chicago 2015

September 16, 2015 - September 18, 2015Plastics Caps & Closures - September 2015

More Events