A study and subsequent report of the World Health Organisation (WHO) dated last year listed some 1600 cities in 91 countries.  The quality of their ambient air was reviewed and measured as per its concentration of pollutants particles in their respective city centre area.

It is assumed here that the resulting ranking in descending order from the highest concentration to the least gave was essentially the basis of the ranking of the most polluted cities in the world.

World Economic Forum has produced an article written by Ross Chainey that encloses this list of 20 cities.

First remark is that amongst these 20 cities, 13 are from the Indian sub-continent, notably Bangladesh, India and Pakistan.

Second is the surprising presence of Doha, Qatar at the 12th place and Khomabad at the 8th.

The obvious question is : would Qatar be able to accept such ranking and if so, would they do anything about it, especially prior to the World Cup tournament of 2022.

The other question is why such pollution phenomenon occurring almost exclusively in all major cities in India especially when one hears that the Chinese capital, Beijing with perhaps greater urban population concentration has approximately half of that of Delhi of India.

For further reading, please visit WEF‘s

aqicn.org/country/qatar/ publishes their air quality monitoring data sheets online.  Here is that of Qatar as narrated by themselves.

“There are good reasons to worry about the Air Pollution in Doha, especially because, according to this article from Doha news, Doha is ranked by the World Health Organization among the world’s most polluted cities.

Unfortunately, official Air Quality monitoring in Qatar is not available. But from this article, the Qatar Environment and Energy Research Institute is working, since 2013, on setting up the official Air Quality Monitoring System in Doha.

While waiting for the official data to be published, there are two alternative – and non official (i.e. non-governemental) – monitoring networks:

qatarairquality.org: The system is from the famous Carnegie Mellon University (cmu.edu) in Qatar. But, without surprise (and despite highly competent personel from CMU), the website has stopped publishing data for more than one year.

dohadust.org: This system is from Alex Johnson, and using a low-cost affordable Shinyei sensor. Despite beeing low-cost, it can still give a good indication of the actual particulate matter levels.”

Doha real-time Air Pollution is given on a daily basis in a fairly easy to read diagram.








This list is reproduced below :