The widespread nuclear radiation caused by the large earthquake and tsunami that struck Japan a few months ago is still considered potential to cause severe health depreciation for exposed people around the nuclear plant. Although the Japanese Prime Minister’s Special Advisor to the nuclear crisis, Goshi Hosono, has recently said that the radiation risk of the Fukushima Nuclear Power Plant has significantly declined, Japanese government still encourages all people who may be likely exposed to the radiation to be very cautious and consult every health weirdness that occurs on their body to any health clinics or hospitals. The government also encourages them to be very cautious if they are going to use any substances that may convey the radiation such as clean water and food. Since the radiation effects to the health cannot be perceived instantly, but eventually after a certain period of time, such as a week, people who are considered likely exposed to the radiation need to be treated exclusively even before any symptoms of the radiation exposure can be perceived.

There are several symptoms that will occur from the nuclear radiation according to the several stadiums of exposure levels. The type of the radiation effect also depends on the radioactive materials which are exposed to the body. High radiation exposure level may cause acute radiation syndromes and even death. Several physical impairments that can be used to identify acute radiation syndrome are nausea, vomiting, fatigue, hair loss, and diarrhea. At higher exposure level, radiation may cause sudden death after no more than one week because the intestinal system of people who suffer high level radiation exposure is severely damaged. The radiation hinders cellular capability to multiply and to reproduce. Among various body parts, intestine is a part that has the most rigorous cellular activities. If such activities are hindered by the radiation effect, the intestine will be severely incapacitated and as the result, the digestive system of people who suffer serious radiation exposure will be unable to operate properly.

Despite the severity of nuclear radiation level in Japan, the United Nations World Health Organization says no travel bans needed to contain Japan health risks. Therefore, worldwide organizations that are concerned about the environmental and health conditions in Japan can always send their volunteers securely and safely. However, to protect those volunteers against any adverse effects of the radiation, they are recommended to wear complete protective gear during the accomplishment of their voluntary operations.