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: gases. Train signs chloride products for indoor r banning all vinyl uses. ____
HOUSTON CHRONICLE -, S\E\C*TKIJON1.4,*/
HOUSTON, TEXAS, SUNDAY, MAY 12, 1974
C
Seven Urgent Investigations Going3SI^.W ..ISBCK'
KMSKJsSIS
Aerosol Gas Causes Deadly Cane
BY JOHN SAAR
1974. Los Ansoist Times' Wuntnetan Post News Service
Washington -- Before U was
identified earlier this year as
the carcinogenic killer of 12 industrial workers vinyl chlo
ride was accepted as a cheap
and almost innocuous gas with a variety of uses. Pressurized into consumer-sale aerosol cans, it served as the propel lant for insecticides and hair-
With responsibility for gov erning vinyl chloride use fall ing between the overlapping jurisdictions of several federal agencies -- all adjusting at differing speeds to new knowl edge on the gas -- some important gaps still exist.
The recent history of vinyl chloride shows a helter-skelter pattern of scientific initiative and governmental response;
April 24, citing those tests and the easy availability of
sprays; as the base ingredient Jan. 20, Dr. Joseph A.
in a common plastic -- polyvi nyl chloride (PVC1 -- it is omnipresent as bottles, pipes, wrapping, car upholstery, phonograph records and sun
Wagoner, director of NIOSH's field investigation division, begins an epidemiological study of four long-established
dry other products.
PVC manufacturing plants. At
ith dramatic speed over this time the research is oc
e last few months, our cupying 18 out of 32 people on
understanding ly compliant
of the slave
agpapsarehnahtsis
staff.
One
branch
has
shut
been unpleasantly changedd.own work on .every other
Unmasked by an Italian re project to handle the vinyl
search chemist, it now stands convicted in the deaths by a rare and invariably fatal liver cancer of the 12 plastics work ers in the last 13 years.
6,500 Workers The relationship between vinyl chloride and angiosarco ma -- a liver cancer which generally kills an average of only 21 persons a year in the United States -- is the latest of the chemical time bombs to threaten our industrial work ers and. if the forebodings of some researchers are borne out, it may be the worst That suspicion is under high priority investigation by at least seven governmental and medical research groups. They want to know exactly what the health risks are for approximately 6.500 people who work in 3? plants where vhui chloride is polymerized ^^polyvinylchloride. ^B^ond that, there is an ur
gent need to establish the haz ards, if any, for thousands of others who fashion PVC into products and for the public at large which uses them.
Found First in Mice
chloride emergency.
In mid-February, Italian scientist Cesare Maltoni told a hurriedly assembled OSHA hearing that two out of 67 rats subjected to daily dosages of vinyl chloride developed angiosarcomas. At a very high level of 6,000 parts per million, 11 out of 72 rats de veloped the rare tumors. How ever. tile bombshell in Maltoni's findings that led to an im mediate emergency revision of the industrial atmosphere levels then standing at 500 PPM was the statement that some rats developed the tumors at 250 PPM.
Feb. 21, the FDA was asked by the health research group to ban and name cos metics employing vinyi chlo ride as a propellant on the basis of "well-documented carcinogenicity.'' A similar petition went to EPA Adminis trator Russell Train, calling for suspension of vinyl chlo ride products regulated by the EPA. The Health Research Group (HRG) is a privately funded organization.
March 23. responding to
substitute gases. Train signs `(Aloride products an order banning all vinyl T-uses.
FO 3345
346
LursTi
al a piutlt,*
------- -
--
fining pace since animal re ades, the EPA states it has
searchers found several no listing of products contain
months ago that mice and ing vinyl chloride and is send
rats dosed with the chemical ing a warning letter to all 35.-
developed angiosarcoma. This 000 pesticide manufacturers
was followed by discovery of suggesting substitution of
the same type of rare tumor another gas.
among workers with vinyl March 26. HRG -- unsuc-
chlorine.
cssful in persuading Clairol to
Last January. B. F. Good withdraw vinyl chloride-pow
rich announced the death of ered hairsprays from the
three longterm employes at market -- takes the dispute to
the Louisville polyvinyl chlo the FDA in a letter to the
ride plant with the significant administrator. Dr. Alexander
addendum that the company N\ Schmidt. The substance of
was investigating whether the the HRG's case was Clairol's
deaths "were related to occu admission that users of the
pational causes."
sprays were exposed to 200
. Since then, 94 consumer Dom for one-minute duration.
products containing vinyl chlo The HRG director. Dr. Sidney
ride either have been volun M. Wolfe, reproved the FDA.
tarily withdrawn by manufac- "Whereas this inaction by the
f ` Hirers or banned from sale by FDA must be welcome and
the EPA and FDA. These in financially beneficial to
cluded 41 aerosol pesticides Bristol-Myers and its Clairol
for household use, 26 home subsidiary, it may be fatal for
^ and professional hairsprays, many unsuspecting citizens of
13 deodorants and antiper- this country."
spirants.
April 3. The FDA an
. Emergency Hole Changes nounces action to end the use
;Tha radical change in atti of vinyl chloride in products
tude toward the colorless gas under its control. The order
is reflected in Department of concerns three manufacturers
Labor regulations on the expo and about 50 products. Calling
sure of industrial workers. the hazard to hairspray users
Previous regulations limiting "extremely remote," Clairol
workers to 500 parts per mil Inc. nevertheless announces
lion were based on avoiding combustible concentrations and toxic levels sufficient to cause dizziness and nausea. A new emergency standard limiting exposure to 50 parts per million is now in force and the Occupational and Safety Health Administration K5SHA) plans to seek a permanent standard of no
the recall of 100,000 cans of Summer Blonde and Miss Clairol aerosol hair sprays.
April 5, in response to a March 11 recommendation from NIOSH that the accept able industrial level should be zero, the Department of Labor announces an Interim emer gency level of 50 ppm.
measureable leveL
April 17, the EPA identi
The perceptions of vinyl fies 20 products containing
chloride as dangerous in any vinyl chloride, leaves 21 more
amount leads to comparison unnamed pending manufactur
with the levels accepted as ers' approval of their publica
reasonable by the chemical tion.
industry as late as January of April 19, EPA Administra
this year. Vinyl chloride read tor Russell Train hears the re
ings declared by the compa sult of crucial experimentation
nies themselves ranged in by his own people. Under test,
ordinary production from 20 to pesticides on public sale rais
100 ppm. But occasional very ed the vinyl chloride concen high readings were admitted. tration in a small room such
The plastics division of Uni as a bathroom to 400 ppm in
royal at Painesville. Ohio, for a 30-second burst. Without light
instance, told NIOSH re or ventilation, the researchers
searchers that workers scaling reported to their chief, the
the vessels in which PVC is concentration of gas diminish
made were briefly exposed to ed by oniy 1 per cent in a
levels as high as 1,600 ppm. four-day period.
**
***
One-Third of U.S. Output
From Houston Area
A few weeks ago, a Wash ington scientific group, the Center for Science in the Pub lic Interest, died the Houston-
chloride present in the air. Harris County pollution
chief Waiter A. Quebedeaux, however, was critical of the '