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Consider the following pairs related to the Air Quality Index (AQI) and its impact:
1. PM2.5 - Particulate matter smaller than 2.5 micrometers
2. GRAP - Graded Response Action Plan for air quality improvement
3. AQI - Introduced in 2015 in India
4. Temperature inversion - Helps in dispersing pollutants
How many pairs given above are correctly matched?
- a)Only one pair
- b)Only two pairs
- c)Only three pairs
- d)All four pairs
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Consider the following pairs related to the Air Quality Index (AQI) a...
Understanding the Pairs Related to AQI
The question involves evaluating the correctness of four pairs related to the Air Quality Index (AQI). Let's analyze each pair one by one.
1. PM2.5 - Particulate matter smaller than 2.5 micrometers
- This pair is correct. PM2.5 refers to particulate matter that is 2.5 micrometers or smaller in diameter, which can penetrate the respiratory system and pose health risks.
2. GRAP - Graded Response Action Plan for air quality improvement
- This pair is also correct. The Graded Response Action Plan (GRAP) is a framework implemented in India to combat air pollution by outlining specific measures based on the severity of air quality.
3. AQI - Introduced in 2015 in India
- This pair is incorrect. While India has adopted the AQI framework, the concept of AQI has been in practice internationally for many years. The specific AQI system used in India was introduced earlier in 2014, not 2015.
4. Temperature inversion - Helps in dispersing pollutants
- This pair is incorrect. Temperature inversion occurs when a layer of warm air traps pollutants close to the ground, preventing them from dispersing. It actually exacerbates pollution rather than helping to disperse it.
Conclusion
- Out of the four pairs, the first two are correctly matched. Therefore, the correct answer is option 'B' - Only two pairs are correctly matched.
This analysis provides clarity on why option 'B' is the right choice based on the definitions and implications of each term.
The question involves evaluating the correctness of four pairs related to the Air Quality Index (AQI). Let's analyze each pair one by one.
1. PM2.5 - Particulate matter smaller than 2.5 micrometers
- This pair is correct. PM2.5 refers to particulate matter that is 2.5 micrometers or smaller in diameter, which can penetrate the respiratory system and pose health risks.
2. GRAP - Graded Response Action Plan for air quality improvement
- This pair is also correct. The Graded Response Action Plan (GRAP) is a framework implemented in India to combat air pollution by outlining specific measures based on the severity of air quality.
3. AQI - Introduced in 2015 in India
- This pair is incorrect. While India has adopted the AQI framework, the concept of AQI has been in practice internationally for many years. The specific AQI system used in India was introduced earlier in 2014, not 2015.
4. Temperature inversion - Helps in dispersing pollutants
- This pair is incorrect. Temperature inversion occurs when a layer of warm air traps pollutants close to the ground, preventing them from dispersing. It actually exacerbates pollution rather than helping to disperse it.
Conclusion
- Out of the four pairs, the first two are correctly matched. Therefore, the correct answer is option 'B' - Only two pairs are correctly matched.
This analysis provides clarity on why option 'B' is the right choice based on the definitions and implications of each term.
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Community Answer
Consider the following pairs related to the Air Quality Index (AQI) a...
1. PM2.5 - Particulate matter smaller than 2.5 micrometers (Correct): PM2.5 refers to fine particulate matter with a diameter of less than 2.5 micrometers. These particles pose significant health risks as they can penetrate deep into the lungs and even enter the bloodstream.
2. GRAP - Graded Response Action Plan for air quality improvement (Correct): The Graded Response Action Plan (GRAP) is a set of emergency measures to be implemented to tackle air pollution in Delhi and other areas in India, depending on the severity of the air quality.
3. AQI - Introduced in 2015 in India (Incorrect): The Air Quality Index (AQI) was introduced by the Indian government in 2014, not 2015, as part of the Swachh Bharat initiative.
4. Temperature inversion - Helps in dispersing pollutants (Incorrect): A temperature inversion actually traps pollutants near the ground by preventing the usual rise of warm air, which would typically disperse pollutants. Inversions lead to increased pollution levels because they prevent the vertical mixing of air.
Thus, only pairs 1 and 2 are correctly matched.
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Consider the following pairs related to the Air Quality Index (AQI) and its impact:1. PM2.5 - Particulate matter smaller than 2.5 micrometers2. GRAP - Graded Response Action Plan for air quality improvement3. AQI - Introduced in 2015 in India4. Temperature inversion - Helps in dispersing pollutantsHow many pairs given above are correctly matched?a)Only one pairb)Only two pairsc)Only three pairsd)All four pairsCorrect answer is option 'B'. Can you explain this answer?
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