6
votes
Accepted
Having a 2.4/5 Ghz wireless router next to us is healthy?
According to the FCC depending on the frequency, a few Watts per kg absorbed RF radiation is an appropriate safety limit. Since 20 dBm corresponds to a total emitted power of 0.1 Watt, there is ...
- 2,260
5
votes
Accepted
High dose radiation contamination — why is quarantine necessary?
You have three kinds of immediate radiation, alpha, beta and gamma radiation.
Their penetrating power differs as well.
Most of the radioactive particles from that disaster are sufficiently well ...
- 6,887
4
votes
Accepted
Can radiography procedures in medicine use gamma radiation?
X-rays and gamma radiation
X-rays and gamma radiation are both types of electromagnetic radiation. X-rays originate from outside the nucleus of an atom (interactions of electrons), whereas gamma ...
- 3,283
4
votes
Health risk associated with living close to a power line: Cancer risk & exposure to electromagnetic field
This has been on peoples' minds for decades and the answer is still not clear.
TL;DR at the bottom.
Research done in the past has not always been of the best quality and so conclusions that might ...
- 41
4
votes
Accepted
How many RADs are actually lethal?
Lethality of radiation varies with the type of radiation, area of the body exposed, the intensity of exposure to a particular location, and access to medical care
However, the US Nuclear Regulatory ...
- 3,090
3
votes
Accepted
Radioactive Iodine for Hyperthyroidism: why avoid contact with others?
The main risk is to children and pregnant women associating with the person receiving I-131 treatment. Since I-131 is excreted in bodily fluids and taken up into the thyroid, those susceptible ...
- 13.2k
3
votes
Accepted
Is an annual stomach x-ray (barium meal) an acceptable radiation risk for a resident of Japan?
Update version of the Japanese Guidelines for Gastric Cancer Screening (Japanese Journal of Clinical Oncology, 2018)
Radiographic screening is recommended for population-based and
opportunistic ...
- 15.8k
3
votes
Alternative sources of iodine for radiation emergency
Here is a potential option that should at least be better than nothing and not particularly risky.
Required supplies:
Iodized salt
High concentration ethanol (>90%)
Filter
Principle:
Iodized salt ...
- 201
3
votes
Can iodine purification tablets be used to prevent absorption of radioactive iodine (tetraglycine hydroperiodide, potassium iodide)
The answer is yes. I found a couple of studies looking at hydroperiodide function in the thyroid. Both of them were from the same group of authors and from the military, where use of these sorts of ...
- 3,101
2
votes
Why are the radiation doses of dental CBCT scan in mGy/cm2 rather than microsievert?
The units might actually have been mGy•cm^2 (rather than mGy/cm^2). This is the dose (in Grays) multiplied by the area it is administered over and is known as the Dose Area Product. This is used as it ...
- 3,283
2
votes
Accepted
Can iodine purification tablets be used to prevent absorption of radioactive iodine (tetraglycine hydroperiodide, potassium iodide)
A few thoughts about the dosage:
130 mg KI contain ≈ 780 nmol I (100 mg). One of the linked tablets contains ≈ 94 nmol I (11.9 mg).
So, 8 and 1/3 of the water purification tablets have the same amount ...
2
votes
Alternative sources of iodine for radiation emergency
Based on WHO report: Iodine as drinking-water disinfectant page 19, common 10% (often labeled 100 mg/mL) povidone-iodine solution can be used as drinking water disinfectant. The recommended amount for ...
- 201
2
votes
Accepted
Sun exposure damage
The Skin Cancer Foundation covers this:
[A]fter the sunburn fades, lasting damage remains.
Sunburn accelerates skin aging and is a leading cause in the majority of cases of basal cell carcinoma, ...
- 6,164
2
votes
Does a radiologist adjust the amount of radiation for each individual?
According to this Harvard Medical article, in order to x-ray an arm or leg the average dose is 0.001mSv with a range reported in literature of 0.0002—0.1mSv.
A lumbar spine x-ray would require an ...
- 6,164
1
vote
Is short exposure for a not high amount of radioactivity harmful? Has it benefits?
Nobody knows.
There are three main models for the effects of low-dose radiation. The mainstream model, and the most conservative of the three, is the linear no-threshold model. It assumes that high-...
- 2,013
1
vote
Accepted
Does Tritium radioactivity penetrate eye tissue?
Tritium decays by emission of low-energy (<19 keV) electrons (and anti-neutrinos that are irrelevant here) [1]. Such particles have a very short range in matter, of the order of a few cm in air, ...
- 126
1
vote
Are headphones with EMF measurement of 10,000 milligauss harmful to me?
No, they aren’t.
In the area of biological effects and medical applications of non-ionizing radiation approximately 25,000 articles have been published over the past 30 years. Despite the feeling ...
- 6,772
Only top scored, non community-wiki answers of a minimum length are eligible