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SUMMARY detected. The calculated values for the
Estimated Daily Intake (EDI) for each of
the pesticides ranged from 4.16 E-06
he presence of pesticide residues to 1.58 E-04mg/kg body weight. These
in plant products, as a result of results were compared with the daily
Tinappropriate application in some intake (ADI) values established by the
cases, constitutes a risk to the health of World Health Organisation (WHO) [3].
the exposed population. In Mexico, the In principle it could be thought that the
oficial standard, NOM-003-STPS-1999 presence of these compounds does not
[1], only allows the use of pesticides represent a health risk; however, the
with phytosanitary registration, which consumption of the same substances
stipulates the doses and crops allowed. in other foodstuffs cannot be ruled
However, pesticide residues are still out. In conclusion, the presence of
common in some plant products. The organochlorine pesticide residues in
present study was carried out in two Nopal suggests the clandestine sale of
collection centers located in the state of these compounds, already banned more
Morelos, Mexico, to detect the possible than two decades ago. In the same way,
presence of organochlorine pesticides it turns out worrying given the multiple
in Nopal. A total of eight samples impacts that this family of compounds
were taken and processed according represents for human health.
to the methodology established by
procedure for pesticide residues was REFERENCIAS
SANTE/11945/2015 [2]. The extraction
performed using the QuEChERS
method. The analytical methodology European Commission. (2015) Guidance
was validated for the evaluation of 14 Document on Analytical Quality
pesticides, by enrichment of the plant Control and Method Validation
and processed in the same way as Procedures for Pesticides Residues
the actual samples. The percentages Analysis in Food and Feed.
of recovery of the pesticides ranged SANTE/11945/2015.
between 55.2 and 99.6%. The analysis Norma Oficial Mexicana NOM-003-
of the samples was carried out by STPS-1999. (2002). Actividades
gas chromatography coupled to mass agrícolas-Uso de insumos
spectrometry. The pesticides detected fitosanitarios o plaguicidas e
were a-HCH (0.038mg/kg), b-HCH insumos de nutrición vegetal
(0.011mg/kg), lindane (0.023mg/ o fertilizantes-Condiciones de
kg), d-HCH (0.010mg/kg), heptachlor seguridad e higiene. RESPYN, 3 (3).
(0.035mg/kg), aldrin (0.034mg/ World Health Organization, WHO.
kg), heptachlor epoxide (0.026mg/ (2016). Pesticide Evaluation
kg), p,p ‘ -DDE (0.010mg/kg), dieldrin Scheme, Department of Control of
(0.025mg/kg). The risk to human health Neglected Tropical Diseases. Use of
associated with the intake of Nopal Malathion for Vector Control; WHO:
was also determined, considering Geneva, Switzerland.
the concentrations of the pesticides

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