In 2021, the concentration level of nitrous oxide (N2O) in South Korea amounted to around *** parts per billion. It is up from about parts per million in 2008.
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Ministry of Climate, Energy and Environment. (August 9, 2024). Concentration level of nitrous oxide (N2O) in South Korea from 2008 to 2022 (in parts per billion) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1022527/south-korea-n2o-concentration-level/
Ministry of Climate, Energy and Environment. "Concentration level of nitrous oxide (N2O) in South Korea from 2008 to 2022 (in parts per billion)." Chart. August 9, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1022527/south-korea-n2o-concentration-level/
Ministry of Climate, Energy and Environment. (2024). Concentration level of nitrous oxide (N2O) in South Korea from 2008 to 2022 (in parts per billion). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1022527/south-korea-n2o-concentration-level/
Ministry of Climate, Energy and Environment. "Concentration Level of Nitrous Oxide (N2o) in South Korea from 2008 to 2022 (in Parts per Billion)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Aug 2024, /statistics/1022527/south-korea-n2o-concentration-level/
Ministry of Climate, Energy and Environment, Concentration level of nitrous oxide (N2O) in South Korea from 2008 to 2022 (in parts per billion) ÌÇÐÄÆƽâ°æ, /statistics/1022527/south-korea-n2o-concentration-level/ (last visited July 20, 2026)
Concentration level of nitrous oxide (N2O) in South Korea from 2008 to 2022 (in parts per billion) [Graph], Ministry of Climate, Energy and Environment, August 9, 2024. [Online]. Available: /statistics/1022527/south-korea-n2o-concentration-level/
