Consider the following statements related to National Air Quality Index (AQI):

1. It is a comprehensive index to indicate the quality of air in a city and its impact on health.

2. Along with Green-house gases, AQI also monitors particulate matters.

3. Indian Meteorological Organisation is the agency in India that prepares it.

Select the correct statement using the codes given below.

a) 1 only

b) 1 and 3 only

c) 1 and 2 only

d) 1, 2 and 3 only

Ans : C

National Air Quality Index:

• It is a comprehensive Index to indicate the quality of air in a city and its impact on health..
• AQI will consider 8 pollutants – PM 2.5, NO2 , SO2, CO, O3, Pb , ammonia, PM-10.
• Presently CPCB and SPCB are operating national air monitoring programme.  Covering 240 cities.
• In the initial phase it will cover 46 million plus cities, 20 state capitals.
• It monitors in 6 categories (good, satisfactory, moderately polluted, poor, very poor and severe). It will grade air quality in a colour code chart.