i. $SO_2$, $NO_x$, particulate matter pollutants
ii. Industry, traffic, domestic sources
iii. Fuel type, gasoline, wood as energy carrier
Choose the correct answer from codes given below :
An emission inventory is essential for urban air quality assessment. It systematically lists and quantifies emissions.
Emission Inventory Components
The inventory comprises several key parameters:
- Pollutants: Identifies specific substances released into the atmosphere. Examples include sulfur dioxide ($SO_2$), nitrogen oxides ($NO_x$), and particulate matter (PM). This matches statement (i).
- Sources: Details the origin of the emissions. Common sources include industrial activities, vehicular traffic, and domestic fuel burning. This corresponds to statement (ii).
- Emission Factors/Energy Carriers: Includes data on fuel types (like gasoline, diesel, wood) and other factors influencing emission rates, which are crucial for accurate calculations. This aligns with statement (iii).
Conclusion on Inventory Parameters
A comprehensive emission inventory requires information on the specific pollutants emitted, the sources responsible for these emissions, and the characteristics like fuel type or energy carriers involved. Therefore, all three components listed (i, ii, and iii) are integral parts of emission inventories used in urban air quality assessments.
Important Questions from Air and Noise Pollution
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