[Investigation of pesticides residues in vegetables in the central Shaanxi area, 2012-2018]

Objective: To investigate the status of pesticides residues in vegetables in the central Shaanxi area.

Methods: The vegetables collected from central Shaanxi area and the pesticides residues in vegetables were detected by gas chromatography-mass spectrometry during 2012 to 2018.

Results: In 1049 samples, the total detection rate of 50 kinds of pesticides residues was 14. 11%, the over standard rate was 1. 91%. The detection rates of pyrethroid, organophosphate, carbamate, organochlorine were 7. 98%, 5. 89%, 3. 30% and 0. 68%, and the over standard rates were 0. 66%, 0. 90%, 0. 70% and 0. 00%, respectively. The highest detection of pyrethroid was cyhalothrin(3. 61%), the highest detection of organophosphate was chlorpyrifos(2. 70%), the highest detection of carbamate was carbofuran(1. 80%), the highest detection rate of organochlorine was endosulfan(0. 68%). The vegetables with higher detection rates were bulbs, fresh beans and stems. The vegetables with higher over standard rates were Chinese chives, cowpeas and celery.

Conclusion: The pesticides in vegetables are detected in the central Shaanxi area, but the total of exceeding standard is low.