Evaluation of Risk Based on Changes in the Air Quality Index
The CPCB, the country's apex pollution regulator, had On Friday recorded an air quality index
(AQI) of 403 in Delhi, 402 in Noida and 412 in Ghaziabad, all in the severe zone, or the most polluted category, on October 20.
Airnow.tehran.ir said Khordad had 28 healthy days with the Air Quality Index
exceeding the key 100 threshold on only three days.
Beijing's air quality index
topped 800 in some areas, on a scale ranking anything above 150 as unhealthy for the general population.
Embassy in the city centre showing an Air Quality Index
(AQI) of over 200 during the day which is listed as 'Very Unhealthy'.
Its analysis of the National Air Quality Index
( NAQI) reveals that while Delhi saw at least five ' good' air quality days in August, there were none in September ( 1- 30) and October ( till 6th).
The Defra Air Quality Index
website predicted that the situation would become worse on Friday.
EPAs Air Quality Index
(AQI) (3) predicts the level of pollution in the air each day and provides advice on healthy physical activity.
7 -- (BNA): Indian Prime Minister Narendra Modi has unveiled the country's first air quality index
, which will provide real-time information on pollution levels.
Cities across China struggle to conform to national pollution standards, and Beijing regularly has an air quality index
of at least 300--the most hazardous rating.
According to the Government's Daily Air Quality Index
, the city was one of the worst in Britain for air pollution.