Even after taking the overall uncertainty of this
estimation into account, the project emphasises the need
to consider air pollution and traffic-related air pollution
as a widespread cause of impaired health. In a century
moving toward sustainable development and health,
closer collaboration of public health and environmental
policies will enhance preventive success. Further
development of standardised impact assessment
methods is needed to achieve comparability of results,
both across projects or countries, and over time, to
assess the benefits from clean air strategies.