In 2019-2020, we measure the impact of harbour activities on the air quality in West Harbour. The monitoring station is located in West terminal 1 near Tyynenmerenkatu in Helsinki.
At this monitoring station we measure the concentrations of nitrogen dioxide, sulphur dioxide and fine particles.
The results are presented through an air quality index that correlates the concentrations to their health effects. The index varies from good to very poor. When the air quality is poor (red colour), people sensitive to air pollutants may show some symptoms. The graph shows the air quality indices from the last 12 hours (unverified hourly values).