Fine dust is harmful to health. But universal limits and measurements do not exist. The WHO could change this by setting guidelines for a global definition of PM2.5. Adjusting the values would also imply more environmental zones.
Saharan dust caused particulate matter levels in Europe to skyrocket this week. In Switzerland, the speed limit on motorways was tightened. In France, the activation of the environmental zones was mostly too late. In some areas, they were dispensed with altogether despite the pollution.
Environmental zones and driving bans are the result of air pollution in many countries on planet Earth. But scientists also use indicators like nitrogen dioxide for other purposes - for example, to explore space and find evidence of extraterrestrial life.
The situation for car drivers in France is becoming increasingly confusing. Now Bordeaux is also to get a temporary environmental zone. In the city by the sea, however, it is not only traffic that causes high particulate pollution. The sea also contributes to the air pollution peaks.
Paris 83 instead of 10, Marseille 89 instead of 5, Lyon 108 instead of 14. This is how many days with temporary driving bans will be in France from 2021.
Wet cleaning of the street of the fine dust hotspot Neckarktor was intended to remove the dangerous particles from the ground. Now the city is stopping this pointless measure.
Frankfurt will probably have to get used to driving bans, as the Hessian Administrative Court has now confirmed once again.
Due to high ozone levels, France issued advance warnings in several areas of the country yesterday.
The news hits like a bomb: Stuttgart says goodbye to its fine dust alarm. And this even immediately, because since Wednesday of this week (15.04.) it is already over!