Territorial Review Copenhagen - Region Hovedstaden

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progress has been made – the levels of total suspended particulate matter
and PM10 have fallen threefold since 1988 in some locations – current
PM10 levels have remained relatively unchanged since 2004 (City of
Copenhagen, 2008; Danmarks Miljøundersøgelser, 2007). 38 A large portion
of this ultrafine particulate pollution derives from traffic and wood burning.
Figure 1.28. Concentration of sulphur, particulate matter and NO 2 in
selected OECD cities
Sources: This is a selection of cities in the OECD with fewer than 2.5 million
inhabitants. NO 2 measurements for cities in the OECD derive from OECD
Environmental Data Compendium 2002, EEA (AirBase), and national statistical
websites (cited in OECD, 2005). They refer to 2002. Data on particulate matter
concentrations are from Pandey et al. (2006) (cited in World Bank, 2007). These data
refer to 2004. Data on particulate matter from Copenhagen was taken in 2007 and is an
average of annual figures from three air quality monitoring stations (H.C. Andersen
Boulevard, Jagtvej, and H.C. Ørsted Inst.), according to Danmarks Miljøundersøgelser
(2007).