Man-made disasters- nuclear disasters, Biology

Among all the environmental disasters that might be caused by humans, nuclear disasters have the greatest potential of causing severe damage to life property. The released as a consequence of nuclear disaster cause acute and chronic effects in the surrounding environment together with chronic risks over a wide range of geographic area. Much of the concerns center around nuclear reactors, transportation of nuclear wastes and temporary storage of spent radioactive fuel at nuclear power plants.

The radioactive materials of particular concern are strontium-90, cesium-137 as both have half life of thirty-plus years and iodine-131, having a short half-life of eight days but known to cause thyroid cancer. Cesium-137 is highly radioactive and is sometimes mistaken for potassium by living organisms. This is passed on up the food chain and bioaccumulate by that process. Similarly, strontium-90 exhibits the properties of calcium and gets deposited in the bones to cause or damage to the bone marrow cells.

Causes

  • Non-military
  • Military

Non-military cause

1.      Accident due to careless handling or transportation of radioactive materials.

2.      Breakdown and crash of orbital satellites with nuclear inventory.

3.      Exposure to radioactive substances due to terrorism.

4.      Improper storage of nuclear material.

5.      Accidents in nuclear power plants due to natural hazards like earthquakes or plane crash.

6.      Accidents in nuclear power plants and nuclear reconditioning plants for nuclear fuel assembly.

Military causes

Disasters in nuclear power plants caused by military operations.

By dangerous nuclear weapons.

Possible effects

1.      Contamination of food and drinking water.

2.      Contamination of the land, particularly densely populated and agricultural regions.

3.      Death of large part of population and post radiation effects.

4.      Devastation of infrastructure.

Posted Date: 7/12/2012 3:05:52 AM | Location : United States







Related Discussions:- Man-made disasters- nuclear disasters, Assignment Help, Ask Question on Man-made disasters- nuclear disasters, Get Answer, Expert's Help, Man-made disasters- nuclear disasters Discussions

Write discussion on Man-made disasters- nuclear disasters
Your posts are moderated
Related Questions
Which of the branches of applied biology ?

Illustrate the term Cilia? A cellular hairlike locomotory structure which comprises an extension of the plasma membrane surrounding a 9+2 organization of microtubules. Unlike f

ARM BONES - Each arm contain 30 bones as : humerus in upper arm, radius ulna in forearm, 8 carples in wrist, 5 metacorples  in plam, 14 phalnges in fingers. HUMERU

PROTEINS Protein was discovered by Mulder. Berzilius gave the catalytic concept & gave the word protein, which means first rank. Protein holds the 1st place in

Explain Indications of Root-End Filling (REF) Retrofilling a. Persistent periapical pathosis resulting from an inadequate apical seal that cannot be corrected nonsurgically,

Head stream of Highland brook zone This is formed by a number of small streams, which originate from a marsh, a spring or a glacier. This is a small shallow zone with an irreg

An electronic chip is to be implanted in the body. During in vitro (in the lab) testing it is observed that the chip will dissolve over time if exposed to liquid with similar pH to

These are areas where woody shrubs predominate rather then trees. In regions with a Mediterranean type of climate i .e., hot dry summers and cool wet winters, shrubs grow close tog

How does the federal government regulate plant-incorporated protectants and ensure their safe use in foods? EPA regulates the manufacture, sale and use of pesticides, containin

Coiling of garden pea tendrils around any support is an example of: 1. Thigmotaxis 2. Thigmonasty 3. Thigmotropism 4. Thermotaxis Thigmotropism