In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of the Air Quality Index? 1. Carbon dioxide 2. Carbon monoxide 3. Nitrogen dioxide 4. Sulfur dioxide 5. Methane Select the correct answer using the code given below.

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Correct answer: 2, 3 and 4 only. There are six AQI categories, namely Good + Satisfac- tory, Moderately polluted, Poor, Very Poor, and Severe. Each of these categories is decided based on ambient concentration values of air pollutants and their likely health impacts (known as health breakpoints). AQ sub-index and health breakpoints are evolved for eight pollutants, namely:  Ground-level Ozone or O3  Particulate Matter (PM10 and PM 2.5)  Carbon Monoxide or CO  Sulphur Dioxide or SO2 and  Nitrogen Dioxide or NO2  Ammonia (NH3)  Lead (Pb) 87

In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of the Air Quality Index?1. Carbon dioxide2. Carbon monoxide3. Nitrogen dioxide4. Sulfur dioxide5. MethaneSelect the correct answer using the code given below.

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In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of the Air Quality Index?1. Carbon dioxide2. Carbon monoxide3. Nitrogen dioxide4. Sulfur dioxide5. MethaneSelect the correct answer using the code given below.

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