46th Session of the Executive Body for the Convention on Long-range Transboundary Air Pollution is an international environmental conference dedicated to strengthening cooperation on air pollution and reducing harmful emissions that travel across national borders. The meeting brings together governments, scientists, environmental authorities, policymakers, international organizations, and technical experts to review progress and develop strategies for improving air quality across the UNECE region.

Key topics include transboundary air pollution, emission reduction, particulate matter (PM2.5), nitrogen oxides, sulphur emissions, ground-level ozone, ammonia, volatile organic compounds, persistent organic pollutants, heavy metals, and air pollution monitoring. Discussions also examine the links between air quality, climate change, ecosystems, biodiversity, and public health.

The Executive Body reviews the implementation of the Convention and its protocols, considers scientific and technical developments, and discusses measures for strengthening international cooperation on emission reductions. Particular attention is given to science-based air pollution policies, emissions inventories, monitoring networks, modelling, technological solutions, and cost-effective strategies for improving air quality.

The 46th Session of the Executive Body for the Convention on Long-range Transboundary Air Pollution provides an important platform for international environmental governance and policy coordination. Its work supports cleaner air, healthier populations, protected ecosystems, and more effective cooperation in tackling pollution that crosses national boundaries.