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
Explain some Characteristic Features of Mucor? 1. Stolons characteristics of Rhizopus are absent in Mucor. The aerial mycelium in Mucor consists of branched hyphae, which grow

Name the state in humans in which the blood cholesterol content becomes abnormally high. a) Explain vernalisation. b) Many villagers near Industrial area vary from "blue bab

Dextrorotatory:- When  an  optically .active substance rotates  the plane of polarized light in a clockwise direction.

Q. Evolutionarily protochordates may be intermediate animals between invertebrates and vertebrates. Imagine a scientist is testing the hypothesis that vertebrates evolved from echi

A person is declared to be dead upon the irreversible cessation of spontaneous body functions: brain activity, or blood circulation and respiration. However, only about 1% of a per

is mismatch repair something different from proofreading?

Human Impact on Carbon Cycle Human activities have greatly influenced the carbon cycle. The discharge of CO 2 , into the atmosphere is steadily increasing owing to burning of

Results: Early mortality for tricuspid valve replacement is around six per cent. But depending on the patient's class of symptoms and the number of concomitant procedures, this c

INORGANI C SUBSTANCES They are small, simple, low molecular weight substances which are made of elements other than Carbon and Hydrogen combined together. Inorganic substan

Why Ascending Method of Paper Chromatography is Preferred? The ascending method is preferred because of the simplicity of the set up. In actual method the substance to be separ