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).
This way you can cut your water consumption by a third! Pause the water flow when soaping and avoid long showers. A shower uses about 30 to 80 litres, while a bath uses 150 to 200 litres of precious water. Install low-flow shower heads and think before buying a power shower.
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