vapona

Fulvio Quinto ordsem at box2.tin.it
Tue Nov 3 09:18:04 EST 1998


>Well, since one of the alternatives is napthalene, what do the data say
>about levels of napthalene?  Does anyone know?

>Liz Day
>LDAY at iquest.net
>www.iquest.net/~lday
>Indianapolis, Indiana, central USA - 40 N latitude, zone 5b.
>Home of Tweeter-Boinger, warrior parakeet.

Look at:
U.S. Department of Health and Human Services  Public Health Service
Agency for Toxic Substances and Disease Registry

NAPHTALENE:
"How likely is naphthalene to cause cancer?
The Department of Health and Human Services (DHHS), the International
Agency for Research on
Cancer (IARC) and the EPA have not classified naphthalene as to its human
carcinogenicity."

"Has the federal government made recommendations to protect human health?
"The EPA recommends that children not drink water containing over 0.5 parts
of naphthalene per million
parts of water (0.5 ppm) for more than 10 days, or 0.4 ppm for longer than
7 years. Adults should not
drink water with more than 1 ppm for more than 7 years. For water consumed
over a lifetime, the EPA
suggests it contain no more than 0.02 ppm naphthalene. The EPA requires
that discharges or spills into
the environment of 100 pounds or more be reported.

The Occupational Safety and Health Administration (OSHA) has set a limit of
10 parts per
million (10 ppm) for the level of naphthalene in workplace air over an
8-hour workday, 40-hour
workweek.

The National Institute for Occupational Safety and Health (NIOSH) considers
more than 250
ppm of naphthalene in air to be immediately dangerous to life or health.
This is the exposure level of a
chemical that is likely to cause permanent health problems or death. "
http://atsdr1.atsdr.cdc.gov:8080/tfacts67.html

DICHLORVOS (Vapona)
"How likely is dichlorvos to cause cancer?
The Department of Health and Human Services (DHHS) has determined that
dichlorvos
may reasonably be anticipated to be a carcinogen.

Has the federal government made recommendations to protect human health?

The EPA requires that spills or accidental releases into the environment of
10 pounds or more of
dichlorvos be reported to the EPA.

The Occupational Safety and Health Administration (OSHA) has set a permissible
exposure limit of 1 milligram dichlorvos per cubic meter of air (1 mg/m3)
for an 8-hour workday,
40-hour workweek.

http://atsdr1.atsdr.cdc.gov:8080/tfacts88.html
http://ace.orst.edu/cgi-bin/aglimpse/01/pips?query=Dichlorvos&case=on

PARADICHLOROBENZENE
"How likely is 1,4-dichlorobenzene to cause cancer?
The Department of Health and Human Services (DHHS) has determined that
p-DCB may reasonably
be anticipated to be a carcinogen."

"Has the federal government made recommendations to protect human health?
The Environmental Protection Agency (EPA) lists p-DCB as a hazardous waste
to be
regulated. The EPA sets a maximum level of 75 micrograms of p-DCB per liter
of drinking water (75
µg/L). One µg is one million times less than a gram. p-DCB is also an
EPA-registered pesticide.
Manufacturers must provide certain information to EPA for it to be used as
a pesticide.

The Occupational Safety and Health Administration (OSHA) sets a maximum
level of 75
parts of p-DCB per million parts air in the workplace (75 ppm) for an
8-hour day, 40-hour workweek."
http://atsdr1.atsdr.cdc.gov:8080/tfacts10.html



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