The Air Quality — Carbon Dioxide indicator shows the daily mean CO₂ concentration in the atmospheric column. CO₂ is the main anthropogenic greenhouse gas, responsible for approximately 64% of total radiative forcing. Monitoring is essential for assessing site-level emission contributions and the effectiveness of carbon sequestration strategies.
Atmospheric CO₂ exceeded 420 ppm in 2024, increasing at approximately 2.5 ppm/year. Elevated CO₂ levels stimulate photosynthesis in some plant species (fertilisation effect) but alter plant community composition, reduce crop nutritional value, and contribute to ocean acidification.
Data come from the Open-Meteo Air Quality API (CAMS model). The variable used is carbon_dioxide (atmospheric CO₂ concentration). For each day, the average of hourly values is calculated. Data are interpolated to the site's geographic position.
| Code | Name | Provider | Type | Coverage | Availability |
|---|---|---|---|---|---|
WRD_OPNAQ_99 | Open-Meteo Air Quality API | Open-Meteo / CAMS | db | Global (Europe: 11 km) | From 2013 to present |
Daily average concentration of carbon dioxide (CO₂) in the atmospheric column. Open-Meteo variable: carbon_dioxide. Daily average of hourly values. Source: Open-Meteo Air Quality API (CAMS). Unit: ppm.