Air Pollution Creeping Into Summers

This year's summer is reaching its end while the capital has seen no "good" air quality during the first two months of the hot season.
This is clearly illustrated if the air quality in the 62-day period is analyzed based on the national Air Quality Index, which divides the conditions according to a measure of polluting matters into Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300) and Hazardous (301-500).