User:Abbasyarali/sandbox

Pollution

In 2011, the World Health Organization ranked Ahvaz as the world's most air-polluted city.^[1] The reason Ahvaz is so polluted is because of its oil industry. The pollution can be very dangerous, causing different types of diseases and harmful to plants. ^[2]

Link to article: Ahvaz

^ Walsh, Bryan (27 September 2011). "The 10 Most Air-Polluted Cities in the World". Time. Retrieved 2012-02-25.
^ "Pollution". Ahwaz, Iran. Retrieved 2017-09-21.

[WHO-1] Walsh, Bryan (27 September 2011). "The 10 Most Air-Polluted Cities in the World". Time. Retrieved 2012-02-25.

[2] "Pollution". Ahwaz, Iran. Retrieved 2017-09-21.

[1]

[2]