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What's
Causing Cancer?
Chemicals fingered as rates reach epidemic
proportions,
by Mitchell Anderson
Cancer in Canada is now projected to
afflict one in every 2.2 men and one in every 2.6 women in their
lifetime. In the 1930s, those numbers were less that one in 10.
What's happening? Why are we now seeing what many are calling a
"cancer epidemic"?
Some would suggest we are simply an aging
population and cancer is a disease of the old. Not true. Recent
statistics show that the net incidence rate of cancer has increased
25 per cent for males and 20 percent for females from 1974 to 2005
— after correcting for the effects of aging.
Children are increasingly the victims.
Researchers in Britain have shown that certain childhood cancers
such as leukemia and brain cancer have increased by more than a
third since the 1950s. In Canada, hundreds of millions of dollars
are raised and spent for cancer research and treatment. The elephant
in the room, however, is the contribution of environmental toxins
and whether many of the cancers striking Canadians can be avoided
rather than simply managed.
The World Health Organization estimates
that fully 25 per cent of cancers worldwide are caused by occupational
and environmental factors other than smoking. You don't have to
look far for some potential chemical culprits. There are more than
85,000 chemicals that are currently licensed for use in North America.
Less than half have ever been tested for human health risk and even
fewer for potential environmental impacts.
The U.S. Centers For Disease
Control recently turned their attention toward pollution detection —
not in the environment, but within the human body. Their study
in 2002 found the presence of 81 different toxic chemicals, including
PCBs, benzene and other carcinogens in their sampling of 2,500
people tested. It is somewhat of a no-brainer that reducing exposure
to known carcinogens will reduce the risk of developing cancer.
Surprisingly, this simple logic seems to have been lost on our
federal government.
Many chemicals that are scientifically
demonstrated carcinogens or otherwise toxic are freely used here
without any legal obligation to identify them on the label. Some
of these same chemicals are entirely banned elsewhere. A trip to
your local supermarket reveals a small sample of these hidden poisons:
- Mothballs contain either naphthalene or
paradichlorobenzene, both of which are carcinogenic. A recent
U.S. study linked mothball use to an increased incidence of
non-Hodgkin's lymphoma.
- Polycarbonate plastics used in food-grade
plastic containers such as water bottles can leach Bisphenol
A, an estrogen-mimicking chemical linked to a variety of disorders,
including hormone-related birth defects, learning disabilities,
prostate cancer and neuro-degenerative diseases such as Alzheimer's
disease.
- Several leading perfumes, nail polishes
and other cosmetic products sold in Canada contain the endocrine-disrupting
phthalates DBP and DEHP — both banned for use in cosmetic
products in European Union countries.
- Polybrominated diphenyl ethers or PBDEs
are common chemical fire retardants found in everything from
foam mattresses to computer parts. They have similar properties
to the now outlawed PCBs and are known neurotoxins and hormone
disrupters. The most dangerous forms are now banned in the EU,
though they remain legal here in Canada.
- Many leading brands of household laundry
detergent contain trisodium nitrilotriacetate, another suspected
carcinogen as well as an environmental pollutant.
Chemicals that endanger human life also
go down the drain and impact the environment. A gruesome example
involved a dead orca that washed up south of Vancouver in 2000 that
was so contaminated with persistent chemicals that Ottawa considered
shipping the carcass to the Swan Hills toxic waste facility for
incineration. Like orcas, we are perched at the top of the food
chain and are becoming the unwitting receptacles of many of the
chemicals designed to make our lives more convenient. Ballooning
cancer rates are simply not worth whiter clothes or fewer moths.
Cancer must be
fought on many fronts. Research and treatment are undeniably
important but so is environmental cancer prevention. It is therefore
shocking that our government is not moving faster to ban known
and suspected carcinogens, and requiring mandatory "right to know" labelling
so that Canadians can better protect themselves and their families.
Anything less is quite simply putting the interests of the chemical
industry ahead of human life.
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Mitchell Anderson is a board member of the Labour
Environmental Alliance Society, a Vancouver-based charity that educates
the public on cancer prevention.
www.leas.ca
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10
Strategies for Cancer Prevention
From
StopCancer.Org
www.stopcancer.org/ca_env/pg14.html
Which
Fish are the Best to Eat
Pocket Guide
More
than 70% of the world's fish stocks are overfished. Confused about
what fish are okay to eat? According to the California Academy
of Sciences, the best fish to eat are "fast-growing, abundant,
sensibly managed, with minimal bycatch and ecological impacts, or
with minimally polluting farming methods." Download your pocket
seafood guide here:
http://www.organicconsumers.org/toxic/seafood-guide.pdf
Skidmark Disease!
This fable was authored by Mike Adams,
the Health Ranger.
skidmark.html |
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