Distribution of rural stations by thresholds of AOT40 concentrations measured in stations for the year 2011. AOT40 concentrations for the protection of vegetation is the accumulated dose of hourly concentrations of O3 over a threshold of 40 ppb, equivalent to 80 μg/m3, accumulated over three month (May to July).
Start a composting scheme by inviting your neighbours and even your local school to compost organic waste. It is a natural fertiliser and it can increase the soil's ability to retain water and air.
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