Pesticide traces in local crops of Sancti Spíritus, Cuba: risk assessment study

Food Safety and Risk

Table 3 Vegetable and rice samples with pesticide residues detected by LC-MS/MS in 2017, 2018, and 2019

Samples		difenoconazole	tebuconazole	imidacloprid	triadimenol	azoxystrobin	propiconazole	pyrimethanil	methamidophos	acephate	dimethoate	fenpropimorph
2017	onion	nd	nd	nd-0.018	nd	nd-0.021	nd	nd	nd	nd	nd	nd
	sweet pepper	nd-0.018	nd-0.095	nd-0.516	nd-0.045	nd-0.086	nd- < LOQ	nd	nd	nd	nd	nd
	tomato	nd-0.024	nd-0.096	nd-0.129	nd-0.027	nd-0.136	nd- < LOQ	nd- < LOQ	nd- < LOQ	nd- < LOQ	nd	nd
2018	cucumber	nd	nd	nd-0.021	nd	nd	nd	nd-0.113	nd	nd	nd	nd
	onion	nd	nd- < LOQ	nd-0.071	nd	nd	nd- < LOQ	nd-0.302^b	nd-0.038^b	nd	nd	nd
	sweet pepper	nd	nd	nd	nd	nd-0.051	nd-0.037^b	nd	nd	nd	nd	nd
	rice	nd	nd	nd-0.113	nd	nd	nd	nd	nd	nd	nd	nd
	tomato	nd	nd-0.070	nd-0.020	nd- < LOQ	nd-0.014	nd	nd-0.505	nd-0.293^b	nd	nd	nd
2019	cucumber	nd- < LOQ	nd	nd-0.002	nd	nd	nd	nd	nd	nd	nd- < LOQ	nd- < LOQ
	sweet pepper	nd-0.006	nd-0.002	nd-0.021	nd	nd-0.003	nd-0.007	nd	nd	nd	nd- < LOQ	nd- < LOQ
	tomato	nd	nd	nd- < LOQ	nd	nd- < LOQ	nd	nd-0.005	nd	nd- < LOQ	nd- < LOQ	nd-0.003
MRL (mg kg⁻¹) European/Cuban	tomato	2/−	0.9/0.2	0.5/0.5	0.3/−	3.0/3.0	3/−	1/−	0.01^a/−	0.01^a/−	0.01^a/−	0.01^a/−
	onion	0.5/−	0.15/−	0.1/0.1	0.01^a/−	10.0/10.0	0.01^a/−	0.2/−	0.02^a/−	0.02^a/−	0.01^a/−	0.01^a/−
	Sweet pepper	0.8/−	0.6/0.5	1.0/1.0	0.5/−	3.0/3.0	0.01^a/−	2/−	0.01^a/−	0.01^a/−	0.01^a/0.5	0.01^a/−
	cucumber	0.3/−	0.6/0.2	1.0/1.0	0.15/0.2	1.0/1.0	0.01^a/−	0.7/−	0.01^a/−	0.01^a/−	0.01^a/−	0.01^a/−
	rice	3/−	1/−	1.5/−	0.01^a/−	5.0/5.0	1.5/−	0.05^a/−	0.01^a/−	0.01^a/−	0.01^a/−	0.01^a/−

In certain cases, pesticide residues are detected but are below the limit of quantification (0.001 mg kg-1) and are therefore reported as “<LOQ”. “^a” Indicates lower limit of analytical determination (default value). “^b” Indicates exceedances of MRL values

ISSN: 2731-9245