What kind of electromagnetic wave may harm human
To study the mechanism of interaction between human tissue and electromagnetic radiation, any type of electromagnetic radiation can be effective except for microwave
Zina Al Shadidi
Electromagnetic spectrum basically consists of seven segments: gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves and radio waves. Gamma rays, x-rays and higher frequency ultraviolet rays are ionizing in nature and rest are non-ionizing radiations.
Ionizing radiation:
Ionizing radiation with sufficiently high energy can cause direct rupture of ions from atoms/molecules resulting in ionization of biological tissue media through which it passes.
Biological consequences as follows: deterministic effects (harmful tissue reactions): killing or malfunction of cells following high doses from radiation burns.
Stochastic heritable effects involving either cancer development in exposed individuals due to mutation of somatic cells or heritable disease in offspring owing to mutation of reproductive (germ) cells.
Non-ionizing radiation:
Non-ionizing radiation does not cause direct rupture of ions rather causes movement of an electron to a higher energy state.
Biological consequences as follows: Non-ionizing radiation can produce inciting thermal energy in biological tissue that can lead to burns.
In 2011, IARC under World Health Organization (WHO) have declared radiofrequency electromagnetic fields (including microwave and millimeter waves) as possibly carcinogenic to humans (class 2B).
Optical radiation causes electron excitation; wavelengths smaller than body dimension can cause heating via induced current. In addition, non thermal adverse biological effects are also there over longer duration of years (however, research is still going on for conclusive statement).
Hope this would help!
Thanks alot Dr. Kundu
Your replay was helpfull.
Can you help me , by any of your papers ot referances???
Thank you again, and best regards .
Zina Al Shadidi
We are currently working on non-ionizing electromagnetic energy absorption in plant and fruit models with consequent biological effects. You can have a look on my profile to get overview of our work.
Regards,,,
Ardhendu
- Badges
- Science topic
- Similar topics
- Biological Science
- Anatomy
- Tissue