Air quality in Delhi improved significantly as on Sunday the overall Air Quality Index (AQI ) was recorded at 329 µgm-3 on the National Ambient Air Quality Index ( NAAQI ).
According to System of Air Quality and Weather Forecasting And Research ( SAFAR ), a unit of Ministry of Earth Sciences ( MoES ), the values of Suspended Particulate Matters ( SPMs ) recorded 237 and 158 µgm-3.
SAFAR in its short range weather forecast said the overall Delhi air quality has improved to the very poor category as forecast.
“Surface winds are moderate and East Northeasterly. The better wind speed has helped to improved dispersion. The air quality is likely to stay in the same Very Poor category for the next two days. Further improvement is expected on January20 in the lower end of the Very Poor to Poor category,” it said.
According to SAFAR, AQI between the range of 51 and 100 is considered as 'satisfactory' or 'very good', 101-200 is 'moderate', 201-300 falls under the category of 'poor'. While 300-400 is considered as 'very poor', levels between 401-500 fall under the 'hazardous' category.
