The special issue is open to all publications that inform about the aspects of intercontinental transport of air pollution and provide answers to the HTAP scientific questions:
- What fraction of air pollution concentrations or deposition can be attributed to sources of contemporary anthropogenic emissions within the region as compared to extra-regional, non-anthropogenic or legacy sources of pollution?
- How do these fractions impact on human health, ecosystems and climate change?
- How sensitive are regional pollution levels and related impacts to changes in the sources of the various fractions?
- How will the various fractions and sensitivities defined above change as a result of expected air pollution abatement efforts or climate change?
- How do the availability, costs and impacts of additional emission abatement options compare across different regions?
We especially welcome publications evaluating the joint HTAP, AQMEII and MICS modelling experiments as well as publications developing new methodologies to assess intercontinental transport or air pollution, describing and evaluating observational and emission data sets used in experiments and their relevance for hemispheric transport of air pollution.