Acknowledgements 2
Executive summary 3
1. Introduction 4
1.1.Background 4
1.2.Objectives and coverage 4
1.3.Effects of Air Pollution 4
Human health 4
Ecosystems 5
Climate change 5
The built environment and cultural heritage 6
1.4 Policy and legislation 7
2. Sources and emissions of air pollutants 9
2.1. Sources of regulated pollutants 9
2.2. Total emissions of air pollutants 10
2.3. Sectoral emissions of air pollutants 11
2.4. Uncertainties in reported emissions 13
3. Residential combustion: an important source of air pollution 14
3.1. Air pollutant emissions from residential combustion 15
3.2 Impact on air quality 16
3.3 Mitigating emissions from residential wood combustion 17
3.4 Conclusions and recommendations 19
4. Particulate matter 20
4.1. European air-quality standards and World Health Organization guidelines for particulate matter 20
4.2. Status and trends in concentrations 20
4.2.1. Exceedances of limit and target values 20
4.2.2. Trends in ambient particulate matter concentrations 22
4.2.3. Relationship of emissions to ambient particulate matter concentrations 23
5. Ozone 25
5.1. European air-quality standards and World Health Organization guidelines for ozone 25
5.2. Status and trends in concentrations 25
5.2.1. Exceedance of the target values for protection of health 26
5.2.2. Trends in ambient ozone concentrations 26
5.2.3. Relationship of ozone precursor emissions and concentrations to ambient ozone concentrations 27
6. Nitrogen dioxide 30
6.1. European air-quality standards and World Health Organization guidelines for NO2 30
6.2. Status and trends in concentrations 30
6.2.1. Exceedances of limit values for the protection of human health 30
6.2.2.Trends in ambient NO2 concentrations 31
6.2.3. Relationship of nitrogen oxides emissions and nitrogen dioxide concentrations 32
7. Benzo[a]pyrene 34
7.1. European air-quality standards and reference level for benzo[a]pyrene 34
7.2. Status and trends in concentrations 34
7.2.1. Exceedances of the target value 34
7.2.2.Trends in ambient BaP concentrations 35
8. Other pollutants: sulphur dioxide, carbon monoxide, toxic metals and benzene 36
8.1. European air-quality standards and World Health Organization guidelines 36
8.2. Status and trends in concentrations 36
8.2.1. Sulphur dioxide 36
8.2.2. Carbon monoxide 37
8.2.3. Toxic metals 38
8.2.4. Benzene 39
9. Population exposure to air pollutants in European urban areas 40
9.1. Particulate matter 40
9.2. Ozone 41
9.3. Nitrogen dioxide 41
9.4. Benzo[a]pyrene 41
9.5. Sulphur dioxide 42
9.6. Carbon monoxide 42
9.7. Toxic metals (arsenic, cadmium, lead and nickel) 42
9.8. Benzene 42
10. Health impacts of exposure to fine particulate matter, ozone and nitrogen dioxide 43
11. Impacts of air pollution on ecosystems 46
11.1. Vegetation damage by ground-level ozone 46
11.2. Eutrophication 48
11.3. Acidification 48
11.4. Environmental impacts of toxic metals 49
11.5. Ecosystem exposure to nitrogen oxides and sulphur dioxide 50
Abbreviations, units and symbols 51
References 54
The report reviews progress towards meeting the requirements of the two Ambient Air Quality Directives presently in force (EU, 2004; EU, 2008) and the long-term objectives of achieving levels of air pollution that do not lead to unacceptable harm to human health and the environment, as presented in the latest two European Environment Action Plans (EAPs) (EU, 2002; EU, 2013).