Air pollution across Spain and particularly in the large cities is generally worsening according to data for 2007 contained in the government's latest annual state of the environment report published last Thursday.
The number of monitoring stations reporting ozone and nitrogen dioxide (NO2) concentrations exceeding ambient air quality standards (EED 31/10/07) increased compared to the previous year. In Madrid, safety levels were exceeded for ozone, NO2 and particulate matter but an improvement was recorded regarding carbon monoxide.
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