Air quality in the Helsinki Metropolitan Area

HSY monitors air quality in the Helsinki Metropolitan Area at 11 measuring stations. The air quality situation is updated hourly on the HSY website.

Air quality is monitored by measuring the concentrations of different size particles and gaseous pollutants. The measuring stations are in various types of environments, and they help to provide a comprehensive impression of urban air quality. Their results can be used to assess air quality in similar areas.

Service Information

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