Full
Outline
To learn the situation of pesticide residues in vegetables sold in Hohhot in 2024, and dietary exposure risk assessment should be conducted.
Vegetables sold in the local market were taken as research objects. A total of 68 samples were taken to carry out pesticide residue analysis and measurement, and a model that can be used to assess chronic and acute dietary intake risks was established. The method of food safety index was used to assess vegetables’ safety risks, and the hazards of pesticide residues in vegetables for consumers were comprehensively evaluated.
The 22 kinds of pesticide residues were detected in samples, with a content between 0.012 mg/kg and 1.870 mg/kg. Parameters that exceeded standards included thiamethoxam, dichlorvos, omethoate, methylamino benzoate, parathion and phorate, with an over-standard rate of 8.82%. Except for omethoate, the chronic intake risks of other pesticides were low, with a low possibility of causing damage to human health. The chronic dietary exposure risk acceptable daily intake of omethoate was higher than 100, which should be regarded as an unacceptable risk. An acute exposure risk assessment was carried out immediately. The acute reference dose value was no higher than 100. The acute exposure risk was acceptable. The index of food safety value of omethoate in circulation was higher than 1, there was a certain risk.
Vegetable products sold in Hohhot have pesticide residues and pollution to varying degrees, and prohibited pesticides have still been detected in vegetables. This study can provide references for pesticide residue assessment of other agricultural products, thus providing scientific support for ensuring food safety.
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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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