Distribution of stations by thresholds of 90.41 percentile of daily PM10 concentrations for the year 2011. The figure is based on the 90.41 percentile of the PM10 daily concentrations, corresponding to the 36th highest PM10 concentration when data availability is 100% over the year.
Let the grass grow higher and thus encourage root growth. It will also allow the grass to self-seed. If you mow a path in the middle, it will show that it is indeed meant to be that way as opposed to being neglected.
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