Full
Outline
To investigate the pollution conditions of neonicotinoid pesticides in fruits and vegetables sold in Xingtai, and assess the dietary exposure risk of neonicotinoid pesticide residues to local residents.
A total of 210 vegetable and fruit samples were collected from markets in Xingtai from 2021 to 2024. The 12 kinds of neonicotinoid insecticides were determined by ultra performance liquid chromatography-tandem triple quadrupole mass spectrometry. The detection and over-limit situations of neonicotinoid pesticides were evaluated in accordance with GB 2763—2021 National food safety standard-Maximum residue limits for pesticides in food. Chronic and acute dietary exposure risk assessments of neonicotinoid pesticides were conducted by the point assessment method. Hazard evaluation of the detected pesticides was performed by the food safety index.
Among the 12 kinds of neonicotinoid insecticides monitored in this study, 8 were detected at varying levels, with detection rates ranging from 0.5% to 34.8% and exceedance rates from 1.0% to 6.7%. Moreover, multiple pesticides were detected in a single sample. Both the chronic and acute dietary intake risk values of the 12 kinds of neonicotinoid insecticides were below 100%, the food safety index of each individual pesticide was less than 1, and the overall food safety index was also below 1.
Certain neonicotinoid insecticides are detected and found exceeding standard limits in vegetables and fruits sold in Xingtai City. However, the dietary intake risks identified in this monitoring are all within acceptable ranges, indicating an overall good safety level.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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