Atmospheric Greenhouse Gases Concentration Terceira Island
A set of greenhouse gases are analyzed at NOAA labs, among which are carbon dioxide, methane, carbon monoxide and nitrous oxide. The CO2 data series is the longest obtained in Portuguese territory and clearly shows the increase of this gas observed over the last 35 years.
Atmospheric CO2 monitoring requires great care, both for choosing the sampling site, either in their own sampling, as this can be easily contaminated by local emissions (vegetation, vehicles, fires, houses, etc.) and also the operator himself.