The European Space Agency (ESA) is Europe’s gateway to space. Its mission is to shape the development of Europe’s space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world.
Find out more about space activities in our 23 Member States, and understand how ESA works together with their national agencies, institutions and organisations.
Exploring our Solar System and unlocking the secrets of the Universe
Go to topicProtecting life and infrastructure on Earth and in orbit
Go to topicUsing space to benefit citizens and meet future challenges on Earth
Go to topicMaking space accessible and developing the technologies for the future
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The calculated reduction of tropospheric nitrogen dioxide (NO2) columns during the 2008 Olympic Games obtained by comparing GOME-2 data with CHIMERE model results. This comparison is used to compensate for atypical meteorological conditions. A reduction of NO2 concentrations of approximately 60% is found above Beijing. The air quality measures were especially effective in the Beijing area, but also noticeable in surrounding cities of Tianjin (30% reduction) and Shijiazhuang (20% reduction).
GOME-2 is an atmospheric instrument on the MetOp satellite, which was developed by ESA in cooperation with EUMETSAT.