Q1. Consider the following statements regarding India’s air pollution control framework:
- Under the National Clean Air Programme (NCAP), improvements in administrative activities alone are sufficient to establish that a city has achieved better ambient air quality.
- The annual National Ambient Air Quality Standard for PM2.5 in India is lower than that for PM10.
- The Graded Response Action Plan (GRAP) provides for progressively stricter pollution-control measures in Delhi-NCR depending on air quality conditions.
- Air pollution control requires intersectoral coordination because important sources of emissions fall outside the administrative jurisdiction of environment departments.
Which of the statements given above are correct?
(a) 1 and 2 only
(b) 2, 3 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
Answer: (b)
Explanation:
- Statement 1 is incorrect: Administrative activities, such as road sweeping and action-plan preparation, do not independently establish improvements in ambient air quality. Actual pollution reduction must also be assessed.
- Statement 2 is correct: India’s annual standards are 40 µg/m³ for PM2.5 and 60 µg/m³ for PM10.
- Statement 3 is correct: GRAP prescribes increasingly stringent emergency measures according to pollution levels and relevant forecast conditions in Delhi-NCR.
- Statement 4 is correct: Transport, industries, power generation, agriculture, waste management and household cooking all contribute to air pollution, requiring coordination across departments.