PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoWhat are e-wastes?
Electronic wastes, often known as e-waste, are spoiled, outdated, and non-repairable electrical and electronic gadgets.
Sources of e-waste:
1. Electronic gadgets:
Computers, laptops, cellphones, printers, monitors, televisions, DVD players, calculators, toys, and sports equipment belong to this category.
Electronic gadgets
2. Household electrical appliances:
Refrigerators, washing machines, microwave ovens, mixers, grinders, water heaters are examples of e-waste generated from the household.
Old and damaged microwave oven
3. Accessories:
Printing cartridges, batteries, and chargers are examples of accessories.
Used batteries
E-wastes include:
| Computer components | \(66 \%\) |
| Telecommunication components | \(12 \%\) |
| Electronic components | \(5 \%\) |
| Biomedical components | \(7 \%\) |
| Other components | \(6 \%\) |
Environmental impact of e-wastes
Any type of electrical or electronic item that is disposed of without awareness can end up in a landfill or pollute water.
Electronic equipment contains a variety of hazardous heavy metals, such as lead and cadmium, which can cause soil and groundwater pollution. E-waste dumping yards and the areas around them are contaminated and pose a serious health hazard.
Health effects of e-wastes
The health effects of various substances are displayed in a tabular column:
Compound | Effect |
| Lead | Damages central and peripheral nervous system; affect brain development in children |
| Chromium | Causes asthmatic bronchitis |
| Cadmium | Accumulates in the kidneys and liver; causes neural damage |
| Mercury | Chronic damage to the brain and respiratory system |
Plastics including Polyvinyl Chloride (PVC) | Burning PVC produces dioxin, which can cause developmental and reproductive problems. It also damages the immune system. |
Reference:
https://www.publicdomainpictures.net/en/view-image.php?image=367106&picture=trashed-microwave-oven
https://www.flickr.com/photos/johnseb/2457508491
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