Greenhouse gases concentrations
Concentrations of carbon dioxide (CO₂), methane (CH₄), and carbon monoxide (CO) are shown from observations at Pallas-Sammaltunturi, Sodankylä, Helsinki-Kumpula, and Utö.
Long-term trend (daily averages), the latest seasonal cycle and the latest 14 days (hourly averages) are depicted. Black line is smoothed data with short term cutoff of 60 days.
Pallas - Sammaltunturi
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO2_timeserie.png?cachebuster=1722037114287)
CO₂ concentration has been measured at Pallas GAW and ICOS station since 1997.
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CH4_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO2CH4_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO2CH4_havg_short.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/pallas_sammaltunturi_CO_havg_short.png?cachebuster=1722037114287)
Sodankylä
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO2_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CH4_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO2CH4_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO2CH4_havg_short.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/sodankyla_CO_havg_short.png?cachebuster=1722037114287)
Helsinki - Kumpula
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO2_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CH4_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO2CH4_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO2CH4_havg_short.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/kumpula_CO_havg_short.png?cachebuster=1722037114287)
Utö
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO2_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CH4_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO_timeserie.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO2CH4_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO2CH4_havg_short.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO_havg_long.png?cachebuster=1722037114287)
![](https://cdn.fmi.fi/research/products/greenhouse-gas/uto_CO_havg_short.png?cachebuster=1722037114287)