What
is Radiation Pollution/Radioactive Pollution?
The term 'radiation' can
refer to a wide variety of forms of energy moving around as waves or particles.
It can mean x-rays, or it can mean microwaves. It can also refer to infrared
light and even visible light. Radioactive
pollution refers to the release of ionizing radiation into the
environment as a result of human activity.
Ionizing
radiation is the form of radiation that has a short
wavelength and a high frequency. In short, it's the form of radiation that's
commonly thought of as being high energy and thus harmful to living things.
Causes
of Radiation Pollution
The following list of
radioactive pollution could give an insight into what usually causes these
radioactive bio hazards.
Ø Dumping
of solid and liquid radioactive wastes.
Ø Pollution
due to underwater nuclear weapon testing and explosions.
Ø Radioactive
pollution caused due to water streams and other water run offs from nuclear
testing sites.
Ø The
atmospheric radioactive fallout mainly due to cosmic particle shower or due to
entry of extra-terrestrial materials from deep space.
Ø Radioactive
pollution that are caused due to the accidents in deep sea weapon testing,
nuclear tipped weapon loss, radioactive emission from thermos-electrical
generators, falling satellites with radioactive materials on board, and finally
aircrafts and ships carrying nuclear materials.
Adverse
Effects of Radioactive Pollution
Ø On the Environment
§ When
soil is contaminated by radioactive substances, the harmful substances are
transferred into the plants growing on it. It leads to genetic mutation and
affects the plant's normal functioning. Eating any part of the contaminated
plant, primarily fruits, poses serious health risks. Since plants are the base
of all food chains, their contamination can lead to radioactive deposition all
along the food web. Similarly, when radioactive waste is washed up in a water
source, it can affect the entire aquatic food web.
Ø On Human Beings
§ The
impact of radioactive pollution on human beings can vary from mild to
fatal; the magnitude of the adverse effects largely depends on the level
and duration of exposure to radioactivity. Low levels of localized exposure may
only have a superficial effect and cause mild skin irritation. Effects of long,
but low-intensity exposures include nausea, vomiting, diarrhea, loss of hair,
bruises due to subcutaneous bleeding etc.
§ Long-term
exposure or exposure to high amounts of radiation can have far more serious
health effects. Radioactive rays can cause irreparable damage to DNA molecules
and can lead to a life-threatening condition. Prolonged exposure leads to a
large number of molecules in the body being ionized into free radicals. Free
radicals promote the growth of cancerous cells, i.e. tumors, in the body.
People with heavy radiation exposure are at a very high risk for
cancers. Skin cancer, lung cancer and thyroid cancer are some of the
common types of cancers caused by radiation.
§ The
effects of genetic mutation are passed on to the future generations as well. In
other words, if the parents are exposed to nuclear radiation, their child could
have severe congenital birth defects, both physical and mental. This is tragically
illustrated in the case of Hiroshima and Nagasaki, where the aftereffects of
nuclear radiation were carried on for generations, and thousands of children
were born with physical abnormalities and mental retardation.
No comments:
Post a Comment