The figuer shows the annual mean NO2 concentration observed at urban background stations. Only urban and sub-urban background monitoring stations have been included in the calculations. Data for Cyprus, Luxembourg and Malta, are not included due to the geographical coverage of the Urban Audit.
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Certain non-recyclable paper products (such as tissues, napkins, and egg cartons) can be added to your compost. Their fibres will aerate the compost and help the organisms that encourage decomposition.
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