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EFFECT OF RADIATION IN HUMAN BODY
CHAPTER ONE
INTRODUCTION
1.1 Background of the study
We
have a lot to be concerned about. Some people say small amounts of radiation
are good for you while others say there is no amount of radiation that is safe.
So why can’t someone make it easy to decide when or if you should worry about
radiation exposure? That is exactly what we’re going to
do here—help by providing the facts. If you want additional information on why
there is disagreement about the effects of low-level radiation, we have
provided this in the section titled "Controversy."
Radiation
specialists use the unit “rem” (or sievert) to describe the amount of radiation dose someone received. We are going to use that unit
throughout the sections. Without getting into technical specifics
about that unit, it is enough to know that it indicates a measure of how
much radiation energy is absorbed in our body. And, as we will see in other
sections, the total energy that is absorbed and its effectiveness in causing
change is the basis for determining whether health effects may result.
We’ll
get into some detail later, but for a baseline—
- 1 rem received in a short period or
over a long period is safe—we don’t expect observable health effects.
- 10 rem received in a short period or
over a long period is safe—we don’t expect immediate observable health
effects, although your chances of getting cancer might be very slightly
increased.
- 100 rem received in a short time can
cause observable health effects from which your body will likely recover,
and 100 rem received in a short time or over
many years will increase your chances of getting cancer.
- 1,000 rem in a short or long period of time
will cause immediately observable health effects and is likely to cause
death.
1.2 Statement of the problem
Why
do some people say all radiation exposure is bad and others say it can be okay?
Even the scientific community differs on the answer to the question of low
radiation doses and health effects. Radiation can cause biological changes in
cells when they are outside the human body, and these can be seen in
a laboratory even when the dose is small. However, these changes are not seen or cannot
be related to health effects in humans. The fact that changes can occur may
make some people believe all radiation is bad and the fact that this is not
related to human health effects may make others believe it is safe at low
levels. The human health effects that have been observed have been when
individuals or groups have received larger doses of radiation (more than 50 rem) from events like those due to military uses of nuclear
weapons, accidents, and uses of radiation in medicine for therapy.
1.3
Objectives of the study
1. To understand whether radiation has a strong
negative effect in the human body
2. To understand whether radiation does not have a
strong negative effect in the human body
1.4 Research
Questions
1. Does radiation have a strong negative effect in the
human body
2. Does radiation have a weak negative effect in the
human body
1.5 Research
Hypothesis
H0: Radiation have a strong negative effect in the
human body
H1: Radiation have a weak negative effect in the human
body
1.6
Limitations of the study
There was limited time, funds and uncooperative
responses from the respondents.
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