Ozone values exceeded at many measuring points

The ozone values were exceeded at many measuring points due to the persistently hot and sunny weather. Minister of Transport Winfried Hermann emphasized in this context that the turnover of the traffic was important for clean air.

Due to the persistently hot, sunny weather, high ozone values can also be expected in the next few days. This is another argument for the traffic turnaround to reduce the amount of air pollutants, says State Transport Minister Winfried Hermann and warns to avoid physical exertion and use climate -friendly modes of transport.

In the past few days, at ozone measurements in Freiburg, Mannheim, Baden-Baden, Tauberbischofsheim, Heidelberg, Wiesloch, Eggenstein, Gärtringen, Bernhausen and in the southern Black Forest, ozone concentrations over 180 micrograms per cubic meter of air (µg/m³) were measured. As long as the weather remains hot and sunny, this value will be expected to exceed this value in the next few days. In the case of ozone levels at this level, children and people with health impairments in particular feel symptoms such as cough, tear stimulus and headaches. Transport Minister Winfried Hermann said: "In the short term, we can only advise you to protect yourself physically, to use climate -friendly modes of transport and, if possible, to leave the car with an internal combustion engine.

exhaust gases as a source for ozone

Ozone close to the ground occurs at hot temperatures and intensive sunlight from so -called forerunner substances. The most important of these predecessor substances are nitrogen oxides (No _{2 ), which are emitted in road traffic and technical facilities, for example in industry, and volatile organic compounds. These connections are released, for example, when using solvents or paints to the ambient air. A smaller part of these connections comes from the vegetation. The complex chemistry in ozone formation ensures that the highest concentrations often occur in the evening and in suburbs or in rural areas and not on the streets for rush time.}

Transport Minister Winfried Herrmann explained: "In the heat wave and the continued drought, we all feel the effects of the climate crisis. Another unpleasant consequence of this crisis is the increase in the soil -related ozone, which many citizens have health problems. reduced and we can significantly improve the quality of life of people within a few years. ”

Ministry of Transport: Air Claim