Air quality today: How dangerous is the fine dust pollution in Hanover?

On March 3, 2025, the air quality was analyzed at the measuring station on Göttinger Strasse, Linden-Süd, Hanover. The measurement captured the fine dust particles (PM10) per cubic meter of air. The limit for PM10 is 50 micrograms per cubic meter of air and can be exceeded a maximum of 35 times in the course of the year, such as the Hannoversche Allgemeine Zeitung reported.

The air quality is evaluated using three characteristic values: fine dust, nitrogen dioxide and ozone. The limit values ​​are defined as follows: for values ​​above 200 μg/m³ for nitrogen dioxide, over 100 μg/m³ for fine dust and over 240 μg/m³ for ozone, the conditions are considered "very bad". Values ​​between 101 and 200 μg/m³ for nitrogen dioxide, 51 and 100 μg/m³ for fine dust as well as 181 and 240 μg/m³ for ozone are classified as "bad". The "moderate" category costs between 41 and 100 μg/m³ for nitrogen dioxide, 35 and 50 μg/m³ for fine dust and 121 and 180 μg/m³ for ozone. The measurement is hour means for nitrogen dioxide and ozone as well as an hourly gliding daily remedy for fine dust.

recommendations in poor air quality

The 240,000 premature deaths registered in the EU annually lead to recommendations for the population. In the case of "very bad" air quality, it is recommended that sensitive people avoid physical exertion outdoors. With “bad” air quality, less sensitive people should be careful and avoid exhausting outdoor activities. With a "moderate" assessment, short -term health effects are rather unlikely, but these can occur in sensitive people. While there are no health -adverse effects with "good" air quality, the best conditions for activities in the fresh air are under "very good" air quality.

In addition, it was pointed out that fireworks qualm mostly consists of fine dust harmful to health. Around 2050 tons of fine dust are released annually, with 75% (1500 tons) of which are being created on New Year's Eve.

such as the Environmental Federal Environmental Office supplemented, fine dust measurements have been carried out in Germany since 2000 and since 2008 for pm2.5. The PM10 annual means have dropped to between 15 and 20 µg/m³ in recent years, which corresponds to a decline of 50 µg/m³ in the 1990s. Lower values ​​are recorded for rural areas. A reliable measurement data acquisition in metropolitan areas is crucial because numerous issuers such as traffic and industry are active there. Since 2012, the annual limit values ​​of 40 µg/m³ have been exceeded at no measuring location.