Regional ozone in Europe

Regional ozone in Europe

Over the past three years, both the European Commission and the United Nations Economic Commission for Europe (UN-ECE) have developed response strategies to combat concerns over acidification, eutrophication and regional ozone. In each case ‘Integrated Assessment...
Automotive particulate emissions

Automotive particulate emissions

Particulate matter (PM) in the air continues to be the focus of increased attention due to concerns over potential health effects. Under the EU Air Quality Framework Directive an air quality standard has been defined with respect to PM10 with a review planned in 2003....
European air quality: changing priorities

European air quality: changing priorities

The second European Auto/Oil Programme (AO II) mentioned in the preceding articles has involved the European Commission, together with Member States, industry1 and the NGO community, over the past three years. A major goal of this programme has been to assess...
Particulates and policy — the role of models

Particulates and policy — the role of models

In the companion article in this Review (pp. 6–9) we examine the current state of understanding on the sources of particulate matter (emission inventories) and their contribution to ambient levels in the air we breathe (source apportionment). This serves to highlight...
Ambient particulate matter: sources and apportioning

Ambient particulate matter: sources and apportioning

The quality of the air we breathe has become an increasingly important and emotive issue over the past few years. To date, the regulation of air quality has focused mainly on outdoor air (even though for particular pollutants, indoor concentrations may be greater and...