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Conclusion

No doubt, CLFs is a green device that can reduce our energy consumption. However, there is a great environment concern on the mercury poisoning problems that might cause by the production and disposal of CLFs as mercury is a very toxic chemical that harm both wild animals and the human being.

Mercury containing light bulbs, such as CFLs, increase mercury disposal to the environment but they reduce the mercury emitted during the generation of electricity in the power plants. The Environmental Protection Agency of the United States revealed that power stations are the greatest source of emission of mercury. The AEA Technology Environment has compared the mercury emission for different light sources when they consume electricity. The data is calculated using a mercury emission of 0.035 mg/kWh.

 

Incandescent lamps

Halogen lamps

CFLs

Wattage (W)

100

85

20

Hours used (Hr)

10,000

10,000

10,000

Power used (kWh)

1,000

850

200

Mercury emitted during power generation (mg)

35

30

7

Total mercury produced (mg)

35

30

7+6* = 13

-          If CFL is deposited into a landfill site, 6 mg of mercury is released. 

The total amount of mercury emitted by CFLs is also less than incandescent light bulbs. Therefore, it is more environmental friendly to use the CFLs instead of incandescent lamps. The amount of mercury content can be further reduced by recycling the CFLs.

CFL is an efficient and long lasting light source. This green technology can really improve our environment compared with the light sources used previously.