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Re: A bit of history, for those new to the anti-dioxin movement
At 01:55 AM 8/8/97 -0400 ,email@example.com wrote:
>Oh, yes, there's a bit of good news that I forgot to
>a 6-year battle, a BFI-owned incinerator in Bronx, N.Y.
>by order of the Governor of New York.
That is good news....medical waste incineration in
general is a high impact, high cost alternative for
managing medical waste. The older genre of
medical waste incinerators without any acid gas or
decent particulate controls are especially nasty.
One of the
>bits of scientific fallout from this struggle is a
>between dioxin-laden particulates and the pandemic of
>in the U.S. (and possibly elsewhere, I haven't seen the
I doubt there is any connection at all between PCDD/F exposures
and causation/aggravation of asthma. I've never seen a single
article even suggesting this in the American Review of Respiratory Disease
and Critical Care Medicine, which is the pre-eminent journal
in the world on respiratory diseases, including asthma.
The operation of this relatively small
>waste incinerator - which NEVER had a stack test -
Any scientist who would conclusively determine that
a community health effect came from a medical
waste incinerator on which there was no information
about emissions and therefore no way to
calculate/predict actual exposures would likely be
very quickly blown out of the water.
>by a DOUBLING of asthma visits to hospitals and clinics
Emissions of hydrochloric acid, fine particulate matter and
possibly airborne chromium (a known risk factor for
occupational asthma) are the more likely cause of any asthma morbidity
that was found.
Airborne particulate matter doesn't have to contain
any chemical toxicants to exert a toxic effect,
particularly on pre-existing asthmatics.
Asthma is a disease of chronic and gross inflamation of the airways
of the lung and the resulting sensitization of these tissues
to further airborne insults. Acid aerosals and fine particulate matter have
the potential to seriously aggravate such asthmatic conditions
by triggering bronchospasm, or a narrowing of the airways
of the lung, in persons whose airways are already inflamed
because of exposure to allergens, chronic lung infections,
exposure to aspirated gastric acids, other occupational/environmental
exposures, genetic predisposition or from other factors.
Older medical waste incinerators without effective particulate
controls are common sources of heavy particulate emissions, particularly
when poorly trained hospital personnel jam them full of
waste creating poor combustion conditions.
>The possibility that dioxin may be at work in the
>is interesting as well because we know that diesel
>have dioxin molecules clinging to them because
>solvents are used in the oil refining process for
As noted above, I am unaware of any support in the
medical literature that PCDD/F in diesel particulate
play any role whatsoever in asthmatic responses.
If you have such medical literature abstracts,
"post 'em if you got 'em"
Diesel particulates contribute to asthmatic responses
because they are very small and they can be coated
with irritating substances that condense on such particles.
Diesel particulate is a cancer hazard primarily because
it contains polycyclic aromatic hydrocarbons, which are
also found in cigarette smoke and coke oven emissions.
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