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Plastic Chemical BPA Declared Toxic In Canada
Julie188 writes "The Canadian government has formally declared bisphenol A (BPA), a chemical widely used to create clear, hard plastics, as well as food can liners, to be a toxic substance. Does this mean that you'll be tackled by the Canadian Mounties if you stroll around with some bottled water? Not exactly. Being a toxic chemical doesn't mean you can't get a little love. The government will at first try and set limits on how much BPA can be released into the air or water by factories that use the compound."
This is definitely a step in the right direction. BPA is a risk to the entire population and it's use is very widespread. It disrupts our hormonal system and has now been linked to different types of breast cancer, heart disease and endocrine disorders. It also affects our reproductive systems. People really need to be aware that the use of plastics containing BPA is harmful and that use of this substance is currently ubiquitous throughout the world.
I had gathered that asbestos is perfectly safe and fine as long as it stays out of your lungs; it's a physical contaminant, not a chemical one. (Am I wrong?) BPA contamination has the potential to be much more insidious.
The World Wide Web is dying. Soon, we shall have only the Internet.
Fine, Canada. We're going to declare Justin Bieber a toxic substance.
Your move.
You'd have have a bigger reduction of BPA intake by making sure you wash your hand every time you handle a thermal printed receipt.
Not exactly. Asbestos particles, when inhaled chronically, lead to mesothelioma. Mesothelioma is not lung cancer; it is a cancer of the pleura which cover the lungs. Asbestos particles, because of their form and other characteristics are especially capable of piercing the alveoli and reaching the pleura. Asbestos particles are only 3,000-20,000 nm long, and only 10 nm in diameter (a human hair is 17,000-180,000 nm in diameter; a red blood cell is 8,000 nm in diameter). Only rarely does exposure to any other substance lead to mesothelioma. Smoking, and exposure to other types of particulates, preponderantly leads to forms of lung cancer rather than mesothelioma.
or was it just misheard, maybe they wanted to ban BP Eh
Actinides (other than uranium and plutonium) are rare in bomb fallout. You are probably thinking of polonium.
Anyway, if biological fallout uptake were the principal driver for the relationship between smoking and lung cancer, then the dose-response relationship -- first measured in the 1950s -- should have changed by roughly a factor of two during the course of the 1960s.
One would expect both incidence and mortality of lung cancer to be rarer in Europe and the US prior the 1930s because mortality from other causes was higher. Furthermore, cigarette smoking became much more popular in the early 1900s, perhaps corresponding with the rise of the cinema. It's not that people didn't smoke tobacco before then... but they were almost always pipe-smokers.