Table 3. Concentration (mg/kg), detection frequency (%), and frequency of samples that contained pesticide exceeding the MRL (%) of each studied pesticide in vegetables collected in Thua Thien Hue and Quang Binh provinces.

Pesticides	TT Hue (n = 162)				Quang Binh Province (n = 128)				Total (n = 290)
	Detection frequency (%)	Median ± MAD (a) (mg/kg)	Min—Max (mg/kg)	Samples > MRL (%) (b)	Detection frequency (%)	Median ± MAD (a) (mg/kg)	Min—Max (mg/kg)	Samples > MRL (%) (b)	Detection frequency (%)	Median ± MAD (a) (mg/kg)	Min—Max (mg/kg)	Samples > MRL (%) (b)
Fenobucarb	36.4	0.004 ± 0.001	< LOD– 0.141	6.2	36.7	0.011 ± 0.004	< LOD -0.083	22.7	36.6	0.008 ± 0.005	< LOD– 0.141	13.4
Acetocrhlo	11.7	0.004 ± 0.001	< LOD– 1.716	2.5	14.1	0.022 ± 0.013	< LOD– 0.653	11.7	12.8	0.010 ± 0.006	< LOD– 1.716	6.6
Fipronil	42.6	0.023 ± 0.018	< LOD– 3.710	24.1	10.2	0.009 ± 0.006	< LOD– 1.295	2.3	28.3	0.021 ± 0.017	< LOD– 3.710	14.5
Pretilachlor	12.3	0.017 ± 0.012	< LOD– 0.110	8.6	17.2	0.019 ± 0.009	< LOD– 1.013	14.1	14.5	0.017 ± 0.008	< LOD– 1.013	11.0
Fluzifop-p-butyl	12.3	0.006 ± 0.003	< LOD– 0.054	3.1	2.3	0.007 ±0.0008	< LOD– 0.008	0.0	7.9	0.007 ± 0.003	< LOD– 0.054	1.7
Isoprothiolane	6.2	0.010 ± 0.006	< LOD– 0.029	3.1	4.7	0.008 ± 0.005	< LOD– 0.491	2.3	5.5	0.010 ± 0.007	< LOD– 0.491	2.8
Trifloxystrobin	21	0.007 ± 0.004	< LOD– 0.593	1.9	0	-	-	0	11.7	0.007 ± 0.004	< LOD– 0.593	1.0
Tebbuconazole	22.2	0.019 ± 0.015	< LOD– 3.594	0.6	2.3	0.012 ± 0.002	< LOD– 0.013	0	13.4	0.014 ± 0.010	< LOD—3.594	0.3
Cypermethrin	79.6	0.040 ± 0.024	< LOD– 11.860	7.4	62.5	0.033 ± 0.021	< LOD– 30.295	6.3	72.1	0.037 ± 0.024	< LOD– 30.295	6.9
Difenoconazole	60.5	0.011± 0.006	< LOD– 4.371	0.6	23.4	0.020 ± 0.014	< LOD– 15.443	0.8	44.1	0.017 ± 0.007	< LOD– 15.443	0.7

(a) MAD—Median absolute deviation

(b) Percentage of samples that contained pesticide exceeding the MRL