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originally posted by: Whoisjohngalt
It is my understanding that ionizing radiation sometimes knocks out electrons that are used by atoms to create a bond with one another. If those atoms happen to be the protiens in our DNA it creates kind of a 'smeared blueprint' that our cells use to replicate and could create bad copies or too many copies. Thats my understanding of how ionizing radiation causes cancer. If its wrong, please correct.
What I dont get is how things like smoking or other chemicals cause cancer. And nothing ive seen explains in detail how it does. What is the smoke or other chemicals doing and how is it doing it?
Much of the current regulatory activity has been focused on the workplace. Many countries lack workplace regulations, and many others have regulations that need re-evaluation by quantitative risk assessors in light of the new research findings.
However, EC exposure levels have been decreasing over time in these Australian mines, so use of recent measurements likely results in an underestimation of lifetime exposure, and thus, an underestimation of excess lung cancer deaths. Australia has a recommended level of occupational exposure to EC of 100 μg/m3, but no workplace regulations exist (5). This lung cancer risk exceeds levels that are acceptable in Europe and the U.S., leading the investigators to call for “the implementation of stringent occupational exposure limits for diesel exhaust” (5).
What about artificial sources of radiation? Sometimes artificial sources of radiation are also included as ‘background’ radiation. Medical diagnostic tests and treatments are the largest source of artificial (or man-made) radiation exposure in Australia.
originally posted by: ManFromEurope
a reply to: Whoisjohngalt
Me as a layman:
- enzyms working on duplicating the DNA/RNA can be "distracted" by cancerogen materials, so that the copy isn't 1:1
- for experts: This is a map of biochemical pathways, Part 1: Metabolic Pathways, Part 2: Cellular and Molecular Processes Fun!
originally posted by: stormcell
originally posted by: Whoisjohngalt
It is my understanding that ionizing radiation sometimes knocks out electrons that are used by atoms to create a bond with one another. If those atoms happen to be the protiens in our DNA it creates kind of a 'smeared blueprint' that our cells use to replicate and could create bad copies or too many copies. Thats my understanding of how ionizing radiation causes cancer. If its wrong, please correct.
What I dont get is how things like smoking or other chemicals cause cancer. And nothing ive seen explains in detail how it does. What is the smoke or other chemicals doing and how is it doing it?
Some chemicals like Benzene which are found in cigarette smoke are known carcinogens. Benzene is a ring of six carbon atoms in a hexagonal shape. As with other polycyclic aromatic hydrocarbons it causes cancer. It has two rings of electrons on either side of the carbon ring. The ionic charge can detach ions and atoms from other molecules like DNA.
originally posted by: TheConstruKctionofLight
I'll keep it simple
1 Smokers have been known to live to over 100
2 Cigarettes will never be banned - plausible denial ability - who can blame the internal combustion engine
3 Then there is Fukushima.....(Links for Fukushima too numerous to list)
"Diesel Exhaust Causes Lung Cancer – Now What?"
www.ncbi.nlm.nih.gov...
Much of the current regulatory activity has been focused on the workplace. Many countries lack workplace regulations, and many others have regulations that need re-evaluation by quantitative risk assessors in light of the new research findings.
However, EC exposure levels have been decreasing over time in these Australian mines, so use of recent measurements likely results in an underestimation of lifetime exposure, and thus, an underestimation of excess lung cancer deaths. Australia has a recommended level of occupational exposure to EC of 100 μg/m3, but no workplace regulations exist (5). This lung cancer risk exceeds levels that are acceptable in Europe and the U.S., leading the investigators to call for “the implementation of stringent occupational exposure limits for diesel exhaust” (5).
"atmospheric background ionizing radiation"
www.arpansa.gov.au...
What about artificial sources of radiation? Sometimes artificial sources of radiation are also included as ‘background’ radiation. Medical diagnostic tests and treatments are the largest source of artificial (or man-made) radiation exposure in Australia.
originally posted by: ManFromEurope
a reply to: Whoisjohngalt
Me as a layman:
- enzyms working on duplicating the DNA/RNA can be "distracted" by cancerogen materials, so that the copy isn't 1:1
- for experts: This is a map of biochemical pathways, Part 1: Metabolic Pathways, Part 2: Cellular and Molecular Processes Fun!
originally posted by: ManFromEurope
a reply to: rickymouse
I think I read that Roche has paid salary to this guy for 40 years to complete this chart, he took this long to cartograph.
originally posted by: JoshuaCox
a reply to: Whoisjohngalt
Cancer is a mistake your body makes when replicating cells while fixing an “injury”. It accidentally creates a brand new life form that begins to replicate.
It doesn’t matter what injured cells your body is healing. There is still a chance it makes a mistake that begins replicating.
Radiation screws with the DNA of cells making the mutations more likely. Thus a replicating mutation has a better chance of forming.
Or atleast that’s my rudimentary understanding of it all.