Industrial Wastewater — Emissions in Tonga

Tonga: Industrial Wastewater — Emissions was 0.0052 kt in 2023. ▼ Falling

Latest (2023)
0.0052 kt
Change on year
unchanged
World rank
184th
of 206 countries
All-time high
0.0098 kt
in 2012
All-time low
0.0052 kt
in 2021
Years of data
34
1990–2023

Industrial Wastewater — Emissions in Tonga, 1990–2023

00.0020.0040.0060.0080.011990200620231990: 0.008 kt1991: 0.009 kt1992: 0.009 kt1993: 0.008 kt1994: 0.008 kt1995: 0.009 kt1996: 0.009 kt1997: 0.009 kt1998: 0.009 kt1999: 0.009 kt2000: 0.009 kt2001: 0.009 kt2002: 0.009 kt2003: 0.009 kt2004: 0.009 kt2005: 0.009 kt2006: 0.009 kt2007: 0.009 kt2008: 0.009 kt2009: 0.009 kt2010: 0.009 kt2011: 0.009 kt2012: 0.01 kt2013: 0.01 kt2014: 0.006 kt2015: 0.006 kt2016: 0.006 kt2017: 0.006 kt2018: 0.006 kt2019: 0.006 kt2020: 0.006 kt2021: 0.005 kt2022: 0.005 kt2023: 0.005 kt

Source: Food and Agriculture Organization of the United Nations. Measured in kt.

Analysis

Tonga recorded 0.0052 kt for industrial wastewater — emissions in 2023. That is the lowest value across all 34 years on record.

That represents a change of down 46.6% over ten years.

Over the whole period, industrial wastewater — emissions in Tonga peaked at 0.0098 kt in 2012 and was at its lowest, 0.0052 kt, in 2021.

Tonga ranks 184th of 206 countries on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 34 years of available data.

Industrial Wastewater — Emissions in Tonga, year by year

Annual values for Industrial Wastewater — Emissions (CH4) in Tonga, 1990 to 2023.
Year kt Change
1990 0.0082 kt —
1991 0.0086 kt +5.4%
1992 0.0086 kt +0.5%
1993 0.0084 kt -2.6%
1994 0.0084 kt +0.2%
1995 0.0086 kt +2.0%
1996 0.0094 kt +8.9%
1997 0.0086 kt -8.8%
1998 0.0087 kt +1.8%
1999 0.0088 kt +0.9%
2000 0.009 kt +2.1%
2001 0.0089 kt -0.3%
2002 0.009 kt +0.2%
2003 0.0089 kt -0.1%
2004 0.0089 kt -0.3%
2005 0.009 kt +0.7%
2006 0.0092 kt +1.9%
2007 0.0094 kt +2.4%
2008 0.0093 kt -0.6%
2009 0.0094 kt +0.6%
2010 0.0094 kt -0.2%
2011 0.0094 kt +0.7%
2012 0.0098 kt +4.1%
2013 0.0098 kt +0.0%
2014 0.0064 kt -34.8%
2015 0.0065 kt +1.0%
2016 0.0064 kt -0.4%
2017 0.0065 kt +0.4%
2018 0.0065 kt +0.3%
2019 0.0065 kt +0.0%
2020 0.0065 kt +0.0%
2021 0.0052 kt -19.2%
2022 0.0052 kt +0.0%
2023 0.0052 kt +0.0%

Tonga compared with similar countries

  • Tonga's 0.0052 kt is below the median for upper middle income countries, which is 2 kt, 0% of the median. (51 countries reporting)
  • Tonga's 0.0052 kt is below the median for East Asia & Pacific, which is 0.5554 kt, 1% of the median. (26 countries reporting)

Biggest year-on-year movements

Years where Industrial Wastewater — Emissions in Tonga changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
2014 -34.8% 0.0098 kt 0.0064 kt

Averages by decade

DecadeAverage LowestHighest Years
1990s 0.0086 kt 0.0082 kt 0.0094 kt 10
2000s 0.0091 kt 0.0089 kt 0.0094 kt 10
2010s 0.0077 kt 0.0064 kt 0.0098 kt 10
2020s 0.0055 kt 0.0052 kt 0.0065 kt 4

Countries ranked near Tonga

  1. 181 Greenland 0.0094 kt compare
  2. 182 Bahamas 0.0092 kt compare
  3. 183 Dominica 0.0055 kt compare
  4. 185 Kiribati 0.005 kt compare
  5. 186 Comoros 0.0034 kt compare
  6. 187 Western Sahara 0.0032 kt compare

See the full ranking of 258 places →

More climate change data for Tonga

All data for Tonga →

Frequently asked questions

What is industrial wastewater — emissions in Tonga?
Industrial wastewater — emissions in Tonga was 0.0052 kt in 2023, according to Food and Agriculture Organization of the United Nations.
What is the highest industrial wastewater — emissions recorded in Tonga?
The highest recorded value was 0.0098 kt in 2012.
What is the lowest industrial wastewater — emissions recorded in Tonga?
The lowest recorded value was 0.0052 kt in 2021.
How does Tonga rank for industrial wastewater — emissions?
Tonga ranks 184th out of 206 countries with data for 2023.
Is industrial wastewater — emissions rising or falling in Tonga?
Over the last ten years it is down 46.6%. The long-run trend across the full record is falling.
Where does this Tonga data come from?
The figures come from Food and Agriculture Organization of the United Nations, published as part of Industrial Wastewater — Emissions (CH4). Statizoid updates them automatically from the source API.

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Industrial Wastewater — Emissions in Tonga. Statizoid, drawing on Food and Agriculture Organization of the United Nations. Retrieved 27 September 2026, from https://climate.statizoid.com/stat/industrial-wastewater-emissions-ch4/tonga/

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About this data

Indicator
Industrial Wastewater — Emissions (CH4)
Unit
kt
Source
Food and Agriculture Organization of the United Nations
Licence
CC BY-NC-SA 3.0 IGO (FAO)
Coverage
258 places, 8,553 data points, 1990–2023
Last refreshed

The FAOSTAT domain on Emissions from Pre- and post- agricultural production includes the greenhouse gas (GHG) emissions, and related activity data, generated from pre- and post-agriculture production stages of the agri-food systems. Data are computed following the Tier 1 methods of the Intergovernmental Panel on Climate Change (IPCC) Guidelines for National greenhouse gas (GHG) Inventories (IPCC, 1996; 1997; 2000; 2002; 2006; 2014). The domain includes methane (CH4), nitrous oxide (N2O), carbon dioxide (CO2) and CO2 equivalent (CO2eq) emissions from the above activities as well as the aggregate fluorinated gases (F-gases) emissions. Estimates are available by country, with global coverage and are updated annually.The FAOSTAT domain disseminates information estimates of CH4, N2O, CO2 emissions, F-gases, their aggregates in CO2eq in units of kilotonnes (kt, or 10^6 kg), and the underlying activity data. CO2eq emissions are computed by using the IPCC Fifth Assessment report global warming potentials, AR5 (IPCC, 2014). Data are available for most countries and territories, for standard FAOSTAT regional aggregations, and for Annex I and non-Annex I country groups.