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Fig. 5 | Environmental Sciences Europe

Fig. 5

From: Chemical surveillance in freshwaters: small sample sizes underestimate true pollutant loads and fail to detect environmental quality standard exceedances

Fig. 5

Sample size simulations for the weekly composite samples of fluoranthene. a represents the original data set and b the manipulated data set in which the outliers of the original data set were manually set to the mean value of the original data set. The distribution of the 100,000 randomly sampled and calculated sample means of fluoranthene per chosen sub-sample size is shown as boxplots

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