In the air quality directive (2008/EC/50), the EU has set a limit value for carbon monoxide (CO) for the protection of human health: the CO maximum daily 8-hour mean values may not exceed 10 milligrams per cubic metre (mg/m3).
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
If you're a meat eater, consider reducing your meat consumption and going for quality rather than quantity. Production of meat consumes enormous amounts of energy, not only for the growth and transport of animal feed, but also for the heating, air conditioning, and lighting of the immense animal farms. Changing to a diet with less meat helps the environment, but is also good for your health. It is best to buy meat from local producers and buy organic too.
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