NO, NO2 and O3 concentrations in the polluted urban landscape in comparison with a rooftop monitoring site and a rural site - influence of meteorology

• Measurements of NO, NO2 and O3 were performed in Göteborg, Sweden, during the GÖTE 2005 measurement campaign. The aim was to evaluate the variation of pollutant concentrations in the urban landscape in relation to urban air quality monitoring stations and meteorology. Important conclusions were that the pollutant concentrations varied substantially in the urban landscape and that wind speed strongly influenced pollutant concentrations and pollutant gradients. Higher wind speeds act to dilute NO2 due to stronger dispersion, but also lead to an enhanced vertical transport of O3, which produces NO2 through oxidation of NO. The latter effect was strongest at the more polluted sites, while the first effect was more important at the less polluted sites.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)

NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)

NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

Nyckelord

ozone

nitrogen oxides

air quality

wind speed

temperature

urban heat island

Göteborg

GÖTE 2005

Publikations- och innehållstyp

vet (ämneskategori)

kon (ämneskategori)