Distribution of stations by thresholds of 99.73 percentile of the hourly SO2 concentrations for the year 2011. The chart is based on the 99.73 percentile of the SO2 hourly concentrations, corresponding to the 25th highest SO2 concentration when data availability is 100% over the year.
When shopping for a new washing machine, look for an energy-efficient model that uses the least amount of water. To find out more, visit the Eco-Label web-site that lists energy-efficient appliances:
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