None - any dosage has risks
Theoretically, one single molecule of a carcinogen can cause a cell to mutate and that to spread to other cells to cause cancer. (Oxygen is also a powerful mutagen!) However, this is multi-stage process, which is dependent on several other factors and the cells have defence mechanisms to combat this. Radiation is believed to somehow interfere in the chain of events.
In theory, there is no safe dose but then it goes down to probability theory. The human body itself produces several 'known human carcinogens' endogenously - ethanol, estrogen and testosterone, to name three. Sunlight is radiation (and moonlight is reflected sunlight!).
It's like saying there's no safe dose of lightning - but only if it strikes you and you're standing barefoot on a metal grill and you've got a weak heart. (There are around 100 lightning strikes per second globally!)
none. They are safe.
The safe level of radiation exposure for humans is generally considered to be around 1 millisievert (mSv) per year, which is the average background radiation dose from natural sources. Occupational exposure limits for radiation workers are typically set at 20 mSv per year, averaged over five years, with no single year exceeding 50 mSv. For specific medical procedures, doses can vary, but guidelines aim to keep exposures as low as reasonably achievable (ALARA principle). Long-term exposure to levels above these guidelines can increase the risk of cancer and other health issues.
Human survives in the planet by drinking water and eating fresh healthy food. Therefore, you have to live in a clean safe-environment. Also have fun and try avoiding a boring life and depression. That's all for now.
Microwave ovens do not cause cancer when used properly. They cook food by agitating water molecules, producing heat, and do not emit ionizing radiation, which is the type linked to cancer. Concerns about cancer risk often stem from improper use or damaged appliances, which can lead to exposure to radiation. However, when maintained and operated according to the manufacturer's guidelines, microwave ovens are considered safe.
I dont know the exact explanation but few days back i read in the newspaper that drinking RO or UV water lowers ones body's immunity...... I don't why or how/??? Just read it..... It is not a short term issue.. but a long term... i mean if such a speculation is true then it can only happen to that person whi has been drinking that water for many years... not to the one who has started drinking that water a month back......
During a hysterosalpingography, a low amount of radiation is used to visualize the uterus and fallopian tubes. The radiation dose is minimal and considered safe for the procedure. The benefits of the test often outweigh the potential risks from the radiation.
To see if it was safe for a human to travel into safe. If the monkey made it, a human might survive space travel. If the ape died, then it was not safe for a human to go into space. The chimp lived, so human beings were sent into outer space.
Some products in an insectiCIDE killer contains MORE HAZARDOUS and DANGEROUS to human beings. Now baygon is for Insecticide and pesticide, and baygon cant kill human beings but can HARM human beings.. because baygon is safe to use but dangerous to use for chirldren.. when using it, make sure that the place isnt often visited by people,
Not directly, but it allows them to monitor how much dose of radiation they have received over a period of time, so they can look at it and check they haven't received too much dosage.
The safe dose in Roentgen per week varies depending on the specific area of the body being exposed to radiation. However, in general, it is recommended to limit occupational exposure to radiation to no more than 50 mSv (millisieverts) per year. Safety guidelines are in place to ensure that radiation exposure remains within acceptable limits to minimize health risks.
A safe dosage of radiation varies depending on factors such as the type of radiation, the age and health of the individual, and the purpose of exposure. In general, for medical imaging procedures, doses are typically kept as low as reasonably achievable (ALARA) to minimize risks. The recommended annual dose limit for radiation workers is 50 millisieverts.
Yes, compact fluorescent light bulbs are safe to use in terms of radiation exposure. They do not emit harmful levels of radiation that pose a risk to human health.
An ergonomic device is a device that is "designed for the safe and comfortable interaction between human beings and machines."
A protector of humanity would be someone who has taken on the task of making all human beings safe.
Gay people are "normal human beings". So assuming they are not a threat to themselves, I believe you are safe. PS I am not gay and most of my friends are. They have not recruited me. Yet ;}
We have body hair and can survive for long durations away from water. Safe to say we're mammals.
On average, we receive about 10-30 microsieverts of radiation per day from natural sources such as the sun, Earth, and cosmic rays. This level of radiation is considered safe and is not harmful to human health.