In the air quality directive (2008/EC/50), the EU has set a target value and a long term objective value for ozone (O3) for the protection of human health. Target value: the maximum daily eight-hour mean may not exceed 120 micrograms per cubic metre (µg/m3) on more than 25 days per calendar year averaged over three years. Long term objective value: the maximum daily eight-hour mean may not exceed 120 micrograms per cubic metre (µg/m3) within a calendar year.
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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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