Statement:
Nigeria is less polluted than Tajikistan

In the Most Polluted Countries rating Nigeria holds position #18 2021 out of 112 and Tajikistan is #4 out of 112 2021.
Position of Nigeria is better than position of Tajikistan.

Referencies:

  1. Most Polluted Countries 2021 by IQAir
    The countries in the rating sorted by 'Pollution Index' in descending order.
    Nigeria 'Pollution Index' value is 34.0
    Tajikistan 'Pollution Index' value is 59.4