CERN and the environment

CERN is strongly committed to maintaining a minimal environmental impact as expressed in the CERN Safety Policy. CERN strives to:

  • Ensure the level of environmental safety and protection specified by the Host States regulations, European standards and directives.
  • Monitor all parameters that might reveal any impact on the environment, such as those related to atmospheric emissions, effluent water, ionising radiation, consumption of water and electricity, production of waste, etc.
  • Inform and report regularly to the Host States, France and Switzerland, the results of its Environmental Monitoring Programme.

     

More than 100 CERN monitoring stations are constantly checking the quality of CERN’s water effluents before release as well as emissions into the atmosphere including ionising radiation. The...

CERN is constantly checking that its activities have an impact as little as possible on the air quality of nearby areas. Filters on the ventilation systems reduce CERN’s atmospheric emissions and...

CERN actively mitigates the noise impact of its activities and facilities already at the planning stage by choosing material or settings that minimises noise. In addition, CERN yearly monitors its...

CERN collects approximately 5500 tonnes of waste per year of which roughly 1700 tonnes are conventional waste and 1100 tonnes are hazardous waste (e.g. impregnated cable drums, chemicals waste,...

To study the composition of matter, CERN uses particle collisions that generate ionising radiation. CERN continuously monitors its ionising radiation levels to ensure that its releases to the...

To reduce the visual impact of new buildings on the landscape, plans are discussed with local authorities to ensure that additions to CERN sites do not alter the overall appearance. Landscaping...

With a growing number of users and various sites, relatively distant from each other, transport is a major concern at CERN. Several initiatives have been launched over the past years to facilitate...

CERN consumes the most electricity when its most powerful accelerator, the Large Hadron Collider (LHC), is running, which consumes roughly half of CERN’s electricity. CERN has a typical yearly...

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