Originally posted on 25 June 2015
Ask anyone to name the most polluted city in the world, and chances are the immediate response will be Beijing. In truth, the Chinese capital is only half as polluted as the city in the top spot – Delhi.
In fact, 13 of the top 20 most polluted cities in the world, according a World Health Organization (WHO) report from last year, are in India. This has led to fears for the health of children living in Asia’s third largest economy.
The report ranked almost 1600 cities in 91 countries for the quality of their air, which is measured for concentrations of PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 microns. These harmful pollutants cling to the lungs and can cause disease.
In Delhi, the annual average is 153 ug/m3 (micrograms per cubic metre of air), which is six times the WHO’s recommended maximum. At various times of the year, this number spikes to much higher levels.
Here’s the list of the most polluted cities in the world:
July 2025
Nutrition Month
“Give us much more than P50 increase
for proper nutrition!”
Invoke Article 33 of the ILO Constitution
against the military junta in Myanmar
to carry out the 2021 ILO Commission of Inquiry recommendations
against serious violations of
Forced Labour and Freedom of Association protocols.
Accept National Unity Government (NUG)
of Myanmar. Reject Military!
#WearMask #WashHands #Distancing #TakePicturesVideosturesVideos
July
3 July – International Day of Cooperatives
3 July – International Plastic Bag Free Day
5 July – World Youth Skills Day
7 July – Global Forgiveness Day
11 July – World Population Day
17 July – World Day for International Justice
28 July – World Nature Conservation Day
30 July – World Day against Trafficking in Persons
Monthly Observances:
Schools Safety Month
Nutrition Month
National Disaster Consciousness Month
Weekly Observances:
Week 2: Cultural Communities Week
Micro, Small, and Medium Enterprise
Development Week
Week 3: National Science and
Technology Week
National Disability Prevention and
Rehabilitation Week
July 1-7:
National Culture Consciousness Week
July 13-19:
Philippines Business Week
Week ending last Saturday of July:
Arbor Week
Daily Observances:
First Saturday of July:
International Cooperative Day
in the Philippines
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