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. 2016 Sep 23;13(10):943. doi: 10.3390/ijerph13100943

Table 2.

Total number of active substances (a.s.) detected, average number of a.s. per sample (min-max), average total concentration of residues (mg/kg), median concentration, and maximum cumulated deposit (sample with the highest total amount of pesticide residues, in mg/kg) observed on a bouquet, for the three species.

Flower Species Roses Gerberas Chrysanthemums
Total number of active substances detected 97 30 31
Average number of active substances/sample 13.6 4.3 6.2
(minimum–maximum number) (3–28) (1–9) (0–15)
Total load average in pesticides/sample (mg/kg) 26.03 1.70 3.99
Median concentration/sample (mg/kg) 24.35 1.73 2.65
Maximum cumulated deposit/sample (mg/kg) 97.03 4.41 15.73