Iran vs Tonga: Per capita nitrous oxide emissions by sector

Iran

185.08 kilograms per person

in 2023

Tonga

191.18 kilograms per person

in 2023

Iran rank

107th

Tonga rank

106th

Per capita nitrous oxide emissions by sector over time

Tonga currently reports 191.18 kilograms per person against 185.08 kilograms per person in Iran, a difference of 6.1 kilograms per person.

The two have swapped places 3 times across 34 shared years of data; in 1990 it was Iran ahead.

Iran ranks 107th and Tonga ranks 106th of 193 countries.

Indicator: Per capita nitrous oxide emissions by sector
Unit: kilograms per person
Source: Climate Watch (2026); Population based on various sources (2024) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 193 places, 6,559 data points, 1990–2023
Last refreshed: 07 August 2026

Emissions are measured in kilograms of carbon dioxide-equivalents per person.