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 Materials, Public Policy, Sustainability, Government & Legislation, Materials Suppliers
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

DC banning PS foam containers

July 30, 2014 2:34 pm ET

Washington D.C. Mayor Vincent Gra signed into law on July 29 a bill that will ban polystyrene foam food and drink containers from the District.    More

Image

Pressure is on to replace aging gas pipes

July 30, 2014 2:47 pm ET

Polyethylene is the plastic replacement material of choice for modernizing the natural gas distribution system — so much so some are concerned...    More

Image

Sainsbury, Schoeller Allibert to recycle food handling crates

July 30, 2014 1:37 pm ET

British retail group Sainsbury's has contracted Dutch recycler Schoeller Allibert BV to reprocess all of its old food crates back into food-grade...    More

Image

Styrolution will open new production late 2014

July 30, 2014 12:54 pm ET

Germany-based styrenic materials group, Styrolution, has announced it is expanding its facility in Ludwigshafen, Germany.    More

Image

Vinyl siding's lead slips, but industry pushing back

July 29, 2014 2:04 pm ET

Vinyl siding continues to be the top cladding choice for home builders and remodelers but fiber cement is gaining ground — at an alarming rate t...    More

Market Reports

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

Shale Gas Market - Analysis of North American Region

This report highlights the impact of shale-based natural gas on the North American plastics market and features an in-depth analysis of production trends in the United States during 2013 and a forecast for 2014 and beyond.

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