Question

What is the daily radiation standard (mSievert) from all sources? (0.01/0.02)
What is the annual radiation standard (mSievert) from all sources? (0.7/0.8)
What is the radiation standard (milliwatt/sq. cm) from microwaves? (5/10)
What is the marker disease by asbestos called among factory works? (Emphysema/Black Lung Disease)

Answer 1

1. Radiation is a very harmful thing it is more harmful because it is every where we are unable to protect ourself from it as it is every where and there are ,any soureces of radiation.This radiation comes from natural sources (like- cosmic ray,under ground radiation etc) as well as from man made sources ( like- the nuclear poweer plants,X-ray machine,CT scan machine etc.). And from these all sources daily standard mSv is- 0.02 mSv

2. According to the U.S NRC the annual radiation standard radiation from all sources is- 620 mrem or 6.2 mSv.

3. Microwave releases electromagnetic radiation and which is a harmful effect of the microwave. Standard radiation from a microwave is- 5 milliwatt per square cm.

4. Asbestos is really a harmful agent for the lung and it causes disease of the lung. It damages the lung and some times causes lung cancer.

Emphysema: This disease cause short breathing due to the damage of the alveoli of the lung.Due air pollution,smoking, chemical or fume dust causes this disease.So this is incorrect.

Black Lung Disease: This disease results blackening of the lung tissue due to long exposure of the Coal,asbestos,silicon.This is maninly seen in the industial workers.This option is correct.

So the correct option is- Black lung disease.