How can electromagnetic waves be harmful?

Answer 1

DNA molecules may also be ionized and degraded by high frequency electromagnetic radiation, which can ionize atoms and molecules in cells and lead to aberrant chemical reactions.

If enough energy is transferred by electromagnetic waves to orbital electrons, the electrons may escape their atom and leave behind a positive ion, which could be either an ionized atom or an ionized molecule.

The energy is transferred in the form of photons, so there is a 1:1 interaction taking place and the energy is equal to: #E=hf#. Photons need to have sufficient energy to remove electrons, therefore only high frequency EM radiation causes biological harm – UV, X-rays and γ-rays.

When water molecules are ionized, one such aberrant chemical change that can happen in a cell as a result of ionization is the production of hydrogen peroxide, which can then attack organic molecules within the cell.

DNA molecules become more exposed during cell division, making them more vulnerable to ionization from electromagnetic radiation. This is why cells that divide more frequently, such as blood forming cells, are more radiosensitive. As you may be aware, patients undergoing radiotherapy need to be kept isolated because their immune systems have been virtually destroyed.

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Answer 2

Electromagnetic waves can be harmful due to their ability to penetrate living tissues and interact with biological systems, leading to various health effects. Prolonged exposure to certain types of electromagnetic radiation, such as ultraviolet (UV), X-rays, and gamma rays, can cause DNA damage, increase the risk of cancer, and damage cells and tissues. Additionally, exposure to high-intensity electromagnetic fields, such as those produced by power lines or certain electronic devices, can induce electric currents and heating in the body, potentially causing burns or other tissue damage.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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