The pies show the proportion of stations on map with low (green), moderate (yellow) and high (red) concentrations in the latest monitoring year for each of the seven hazardous substances. In the case of the three metals the boundary between moderate and high is set using foodstuff limits. The arrow indicates the general trend for each category where one can be identified
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By having aerators and water flow restrictors fitted on your taps, the flow of water will feel stronger, but will consist of less water and more air. Aerated taps can reduce the water flow by 30-40 %.
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