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Toxic indifference

How does fly spray work? The unanimous explanation on the web is that it contains chemicals that block the effect of an enzyme that causes a muscle to release after it has been ordered by a neurotransmitter to contract. That sentence is too long but, believe me, it is a very short version of the explanation. The result in the fly, or other insect, is uncontrolled muscle spasms, which explains the wild flight of a dying fly, and it is this loss of muscle control that kills the fly if repeated collisions don't. So fly spray poison is a neurotoxin, and, yes, in much bigger quantity it would have the same effect of vertebrates (you and me) as it does on invertebrates (the fly). Some people believe this neurotoxin is sometimes responsible for headaches and other ailments in people.

In my column in The Herald today I tell how, as a child in the 1950s and '60s, we sprayed the house as a matter of course with tin-can fly sprays that coated all surfaces with a poison. I don't know what the toxin was but it was certainly effective. Still, I survived. Who knows whether those who succumbed to leukaemia and other cancers owe their illness to the toxins that pretty well drenched our homes and food. It is known, though, that many of the poisons in household products today do cause cancer. Beyond question. Yet many are still sold freely in Australia for domestic and farm use.

Choice magazine has just found that many of the poisons used in our insect sprays, head lice treatments, flea shampoos and other products that "protect" us from insects have been banned or are in the process of being banned in Europe and the US. It points out that one poison used in insect spray in Australia, chlorpyrifos, is a neurotoxin banned in the US for almost a decade because of its suspected links to childhood leukaemia and diseases or disorders of the reproductive and immune systems.

The problem is, according to Choice, that Australia has a permissive wait-and-see attitude to poisons, as opposed to Europe's requirement that the manufacturer prove the toxin is safe before it is sold.

Can there be any good reason, any excuse, for our authorities' indifference? What can we do about it?

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Date: Newest first | Oldest first
This is where education is the key. As a relatively intelligent person, I always read the labels on products and workout what is toxic and non toxic. My favourite is the safe for allergy sufferers with 'low fumes' attached. Just because it's low fumes, doesn't mean its safe. As an artist, I prefer to use stinky turps to clean my oil brushes, as the odorless turps they push now is just as toxic. But the stinky turps reminds you to be careful and only use it in well ventiltated rooms etc. All these people using anything low fumes splash it around with complete andonment of oh&s. The same goes for fly sprays. Perhaps this is one way of breeding out the stupid people?????? oh damn that optimism
Posted by leahkf, 13/05/2009 9:31:13 AM
There is no valid reason for Australia to be anything but a world leader in product safety. Bureaucratic inertia or a lack of political wherewithal are the only possible explanations. UNACCEPTABLE.
Posted by Abundance, 13/05/2009 12:11:30 PM
If you think fly spray is dangerous, check out aspartame, sugars chemical replacement in all diet fizzy drinks.
Posted by Chef Dude, 13/05/2009 12:28:08 PM
Jeff, the compounds in insecticides are acetylcholineesterase (ACE) inhibitors. Reversible (ACE) are used in medical practice for glaucoma and myasthenia gravis. Irreversible ACE inhibitors are used as insecticides as well as being used for chemical warfare, an example being Sarin. With all such things - insecticides, medicines, vaccinations etc -one needs to consider the toxicity, danger of bioaccumulation and the short vs long term benefit of the product. DDT (probably the major component of the fly sprays of your youth) was able to dramatically decrease the incidence of malaria in countries where it was endemic. Later it was found to persist in the environment and its use discontinued. There is always a balancing act with compounds of this nature. Will the short term benefits outweigh the potential risks? Should we, for example use a medication which can cure 99.99% of people with a certain condition, but kills the other 0.01%. If the condition was tinea, the answer is no, but if it was congestive heart failure the answer would probably be yes. While Choice (a laudable organisation) suggest that we have a permissive attitude to poisons, I would suggest that is not quite correct, and that Australia will have differing attitudes to different compound based on the level of evidence available. The Eurpoean model of placing the onus on the manufacturer top demonstrate a product is safe is also misleading, as many “safe” compounds are often found to be not safe over the years or under different circumstances DDT being a case in point, along with thalidomide and more recently the COX 2 inhibitors (Celebrex, Vioxx) The bottom line is we all need to weigh the benefits versus the risk with all things we consume, and to stay on top of the literature! (if you know how)
Posted by Directeur Sportif, 13/05/2009 2:34:45 PM
You are the font of all knowledge, DS. Does it come naturally? Please tell us a little about yourself. Are you, eg, a man of impressive personal presence or does this quality manifest itself only in the written word? Are you a leader of men?
Posted by Jeff Corbett on 13/05/2009 2:55:02 PM
It's a sign of madness talking to yourself.
Posted by moron, 13/05/2009 3:12:43 PM
directeur - by the time i got half way through your comments i was just about passed out. you could compile a book of your comments and sell it as a sleeping aid.
Posted by zzzzzz, 13/05/2009 3:41:07 PM
zzzzzz: if you have a short attention span, limited intelligence and poor comprehension skills you should confine yourself to reading moron's comments, which while boring and inane are at least brief.
Posted by Directeur Sportif, 13/05/2009 4:48:15 PM
I recently discovered a book called Additive Alert. It tells you all about the hidden chemicals and toxins in everyday food. It certainly is an eye opener! Jeff, you'll never look at peanut butter the same again.
Posted by aap, 13/05/2009 4:56:41 PM
I enjoyed your post Directeur Sportif. very relevant to cancer treatment eg steroids:avascular necrosis.
Posted by chaff and oats, 13/05/2009 5:25:36 PM
thanks for your tips sporty - i'll try to remember them.
Posted by zzzzz, 13/05/2009 6:36:51 PM
Jeff Corbett
Bend the online ear of the Hunter's most provocative columnist.

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