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6. Enlist the major sources which contribute to the rise of Nitrogen Dioxide in the environment. Discuss the threats posed by this and suggest suitable measures to overcome this. (15M)
Reference: The Hindu
Why the question?
Recent publication of Greenpeace report by Delhi Key demand of the question: Comprehensive strategy to combat the pollution caused by NO2 in the country
Directive
Discuss:
Throw light on various perspectives and present a logical argument.
Structure of the answer
Introduction
Briefly highlight the data published in the report
Body
- List the numerous sources in the society which is leading to rise in NO2. Ex: tobacco smoke and gas-, wood-, oil-, kerosene- and coal-burning appliances such as stoves, ovens, space and water heaters and fireplaces, particularly unflued or poorly maintained appliances, road traffic
- Highlight the various threats posed by NO2: Increased inflammation of the airways; Worsened cough and wheezing, reduced lung function; increased asthma attacks; and. greater likelihood of emergency department and hospital admissions.
- Suggest suitable strategies in tackling these threats fuel switching, fuel pre-treatment, combustion (or chemical process) modification, flue (or tail) gas Denitrification.
Conclusion
Highlight the urgency in preventing this pollution at the earliest. You can talk about any government programmes in this regard
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