EU pollutant · CO · no station measurements on this site
Carbon Monoxide
Chemical formula: CO. Regulated under EU Ambient Air Quality Directive 2008/50/EC .
Data coverage on this site
PlainAirQuality keeps Carbon Monoxide in the EU-regulated pollutant taxonomy so
the limits table stays complete, but the live measurements fact table contains
zero station rows for code CO. There is no honest
“top stations” ranking or annual-mean sample to publish here.
Station pages and country rankings on this site cover the pollutants we actually sample (PM2.5, PM10, NO₂, O₃, SO₂). For CO and benzene regulatory context, read the common European air pollutants guide and methodology - without inventing a zero-row monitoring page.
EU limit value
10 mg/m³
8-hour max. Directive 2008/50/EC.
WHO 2021 guideline
4 mg/m³
24-hour mean