Q.Explain the effect and remedial plans of following materials on environment and human health.
(a) Plastic
(b) Glass
(c) Thermocol
Answers
Answer:
The effects of the following materials on environment and human health are:
1) Plastic – It is non-biodegradable and a man made material which causes a lot of land pollution. Due to its non-biodegradable characteristics it remains in the soil and water for a very long time, thus causing pollution. The smoke released after burning of plastic is also harmful for human health.
2) Glass – While glass production, mixture needs to be heated up to 1500 ºC. During this, greenhouse gases like sulphur dioxide, nitrogen dioxide, carbon dioxide are released through burning of fuel. As the glass is non-degradable, if pieces of the waste glass material flow into water body, it may affect that ecosystem. Similarly, drainage may be blocked due to these pieces.
3) Thermocol – Being carcinogenic ingredients in styrene, the person in contact with thermocol for long duration may have the possibility of blood cancer like leukemia and lymphoma. It takes a long duration for natural degradation of thermocol; hence many people opt for destroying it by burning. However, it is still more hazardous method as it releases poisonous gases in atmosphere. In mass gatherings, plates and cups used to offer the food, water, tea are made up of thermocol. It affects their health. If the food kept in thermocol is reheated, styrene may dissolve in that food. Due to this, there is possibility of health problems.
Explanation:
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