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. 2018 Jun 19;5:744–749. doi: 10.1016/j.toxrep.2018.06.008

Table 2.

Concentrations (ng/g ww) and the % frequencies of detection of neonicotinoids in Japanese tea leaves and Japanese bottled green tea beverage.

Japanese tea leaves
Japanese bottled green tea beverage#
Freq (%) Min 25th 50th 75th Max Freq (%) 25th 50th 75th Max
Acetamiprid 67 <LOQ <LOD 2 4 472 78 0.02 0.04 0.26 2.01
Clothianidin 74 2 10 20 233 100 0.05 0.59 1.01 2.08
Dinotefuran 100 52 274 581 3004 100 3.09 17.51 23.30 59.00
Imidacloprid 92 4 6 13 139 78 0.39 0.43 0.59 1.91
Nitenpyram 3 <LOD <LOD <LOD <LOD 54 <LOQ <LOQ <LOQ <LOQ <LOQ
Thiacloprid 79 2 7 15 910 100 0.22 0.65 0.81 2.35
Thiamethoxam 79 5 13 27 650 100 1.45 1.71 2.50 5.53

Freq (%): Frequency (%); Max: Maximum; <LOQ: below detection quantification;#: indicates concentrations expressed in ng/mL.