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New Warning Made About Asbestos (SEATTLE)
Anyone working for any length of time with vermiculite insulation
from a W.R. Grace & Co. mine in Montana faces a substantial health
risk from asbestos contamination, a federal health official warns.
The insulation was used in millions of homes and businesses nationwide.
Testing of Zonolite brand insulation, along with Grace internal
documents, "reveals that even minimal handling by workers or residents"
exposes them to danger from asbestos, Dr. Hugh Sloan, an assistant
U.S. surgeon general, wrote in a memo last week. His memo was a
request for help from other federal health experts, the Seattle
Post-Intelligencer reported Monday.
Only two officials of Grace, based in Columbia, Md., could comment
on the memorandum and both were out of town Monday, company receptionists
said. Recent studies show even casual handling of the insulation
can expose workers or homeowners to 150 times the asbestos level
considered safe under federal regulations, Sloan wrote in a memo
to Linda Rosenstock, director of the National Institute of Occupational
Safety and Health.
Vermiculite from Grace's mine at Libby, Mont., was sold for use
in garden products, fireproofing, cement mixtures and more than
a dozen other consumer products. The bulk of the ore was heated
until it expanded like popcorn, then marketed as Zonolite insulation.
Asbestos, linked to lung cancer and other diseases, is a natural
contaminant of vermiculite ore. The Post-Intelligencer report involved
vermiculite specifically from the Libby mine, which Grace operated
from 1963 to 1990. Estimates of homes containing Zonolite insulation
range from 2.5 million to 16 million nationwide, the newspaper said.
The New York Times reported last month that the Environmental Protection
Agency was investigating why officials ignored for 18 years a study
that showed Grace was using ore laden with asbestos in insulation
and other building products.
The Post-Intelligencer said it had obtained internal documents showing
Grace officials were aware of health risks from asbestos in insulation
in the 1970s. "We believe that a decision to affix asbestos warning
labels to our products would result in substantial sales losses,"
executive vice president E.S. Wood wrote on May 24, 1977, the newspaper
reported. "The risk of liability to customers is heightened by the
decision not to label our products." Federal investigators are conducting
medical tests in the Libby area following reports that hundreds
of vermiculite miners and their relatives have died or are dying
from asbestos-related diseases. Several lawsuits have been filed
on behalf of workers and their families.
On Friday, Grace issued a statement acknowledging that some products
made in the 1970s and '80s contained "minute quantities of naturally
occurring asbestos." The statement did not mention insulation.
Melanie A. Stone, MPH
Epidemiologist
Scientific Evidence, Inc.
08/14/00
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