Statement:
Iran is less polluted than Chad

In the Most Polluted Countries rating Iran holds position #24 2021 out of 112 and Chad is #2 out of 112 2021.
Position of Iran is better than position of Chad.

Referencies:

  1. Most Polluted Countries 2021 by IQAir
    The countries in the rating sorted by 'Pollution Index' in descending order.
    Chad 'Pollution Index' value is 75.9
    Iran 'Pollution Index' value is 30.3