Full
Outline
To investigate the pesticide residue levels and exposure risks of Fragaria ananassa in Qingdao.
A total of 150 batches of fresh Fragaria ananassa from the production bases in Qingdao were randomly selected. Based on the results of visits and investigations, typical pesticides in the 150 batches of samples were tested, and dietary intake risk assessment of typical pesticide residues in Fragaria ananassa was conducted.
It was found that 17 kinds of pesticide residues were detected in 150 batches of Fragaria ananassa in Qingdao, and 10 kinds of pesticides were registered for use in Fragaria ananassa, accounting for 58.8% of the total number of pesticides detected. The 7 kinds of unregistered pesticides were detected in Fragaria ananassa, accounting for 41.2% of the total detected pesticides. The types and quantities of pesticides detected were fungicides>insecticides>acaricides, and plant growth regulators were not detected. In the 5 different harvest periods,the highest pesticide residue levels and the detection frequency were detected in Februry and March. The risk coefficients of the 17 kinds of detected pesticides were all less than 1.5, indicating that the detected pesticides were at a low risk. The dietary intake risk of the detected pesticide residues in fresh Fragaria ananassa was also relatively low. This suggested that the impact of the 17 kinds of detected pesticides on the safety of Fragaria ananassa was acceptable.
Through the monitoring of pesticide residues of Fragaria ananassa in Qingdao, it is found that the qualified rate of pesticide residues in Fragaria ananassa is relatively high, the quality and safety status of Fragaria ananassa is good and acceptable. However, judging from the monitoring data, the use of unregistered pesticides in Fragaria ananassa still occurs, so the supervision of the use of unregistered pesticides in Fragaria ananassa should be further strengthened.
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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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