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Changes refer to updates made to the 2018 World Air Quality Report ...
This forecasting model, and all resulting air quality predictions, ...
In order to check the accuracy of AirVisual devices, AirVisual cond...
In order to check the accuracy of AirVisual devices, AirVisual cond...
Industries, households, cars, and trucks emit complex mixtures of a...
Industries, households, cars, and trucks emit complex mixtures of a...
The WHO air quality guidelines (AQGs) are intended for worldwide us...
IQAir’s live major city air quality rankings, available for both
The rankings are based on real-world monitoring data from a variety...
The rankings are based on real-world monitoring data from a variety...
In cities which are covered by both European Environment Agency (EE...
It is not uncommon for hourly measurements to be missing from sourc...
It is not uncommon for hourly measurements to be missing from sourc...
Outlying values in a city which has multiple stations is filtered o...
Outlying values in a city which has multiple stations is filtered o...
All hourly values are localized to their local timezone, before bei...
The data included in this report is all generated from ground-based...
The data included in this report is all generated from ground-based...
The country/region average values are the estimation of the populat...
The country/region average values are the estimation of the populat...
PM 2.5 is widely regarded as the pollutant with most health impact ...
PM 2.5 is widely regarded as the pollutant with most health impact ...
There are various ways to calculate a yearly, monthly, daily and ho...
There are several reasons for a city or a country not being part of...