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Informatics Practices · Ch 6 — Societal Impacts

Impact of e-waste on humans

6.8.2

Impact of e-waste on humans

The Hidden Danger in Discarded Electronics

When we throw away an old phone or a broken television, the danger doesn't end at the landfill. Every electronic device is built from a mix of metals and elements — lead, beryllium, cadmium, mercury, and plastics. Most of these materials are not just hard to recycle; they are toxic and carcinogenic (meaning they can cause cancer). If e-waste is not handled properly, these substances leak into the environment and enter our bodies through food, water, air, or soil. The result is a range of serious health problems that affect humans, animals, and plants alike.

How Each Toxic Component Harms the Human Body

Lead is one of the most common metals in electronics, found in monitors and batteries. When lead enters the human body, it causes lead poisoning, which attacks the kidneys, brain, and central nervous system. Children are especially vulnerable — even small amounts can cause lasting damage to their developing brains.

Beryllium is released when electronic circuit boards are burned for disposal. Burning creates a harmful chemical that causes skin diseases, allergies, and significantly increases the risk of lung cancer. Similarly, burning insulated wires to extract copper releases fumes that can lead to neurological disorders — problems with the nervous system that affect movement, coordination, and thinking.

Mercury, present in some electronic devices, is a potent neurotoxin. It causes respiratory disorders and brain damage. Even low-level exposure over time can impair memory and motor skills.

Cadmium, used in semiconductors and resistors, is stored in the body for years. It damages the kidneys, liver, and bones, leading to conditions like kidney failure and brittle bones.

Plastics are used in every electronic device. When plastic waste reacts with air and moisture, it releases harmful chemicals into the soil and water. Once these chemicals enter the body, they damage the immune system — making it harder to fight infections — and also cause psychological problems such as stress and anxiety.

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A Common Misconception …