Interested in this kind of news? Receive them directly in your inbox. Delivered once a week. Sign Up Jens Müller, air quality manager at Transport & Environment, said “Air pollution is an invisible killer and the biggest environmental risk to public health in Europe. The ostrich-like approach, where some authorities try to hide the real extent of pollution rather than ensure their citizens breathe clean air, must stop. It is high time for the Brussels region and local authorities across Europe to take responsibility and do everything in their power to protect citizens by monitoring and addressing air pollution.” This ruling comes one day after France lost a landmark court case taken by a mother and her daughter to hold the French government responsible for failing to tackle air pollution.