Full
Outline
To investigate the contamination status of foods in and around schools in Nanjing and to assess the health risks of different contaminants, so as to provide scientific evidence for ensuring school food safety and strengthening supervision.
From 2020 to 2024, 458 samples of foods from in and around campuses, covering four categories, were collected and tested, based on the occurrence of additives and acrylamide in diverse food. Health-based guidance values and benchmark doses were used to construct a risk-ranking matrix that incorporated contaminant toxicity characteristics and population food consumption patterns to evaluate health risks.
The results of the analysis showed that the overall exceeding standard rate of pollutants for food in and around the campuses in Nanjing was 4.59%. The issue of acrylamide and aluminum-containing additives in puffed food was serious particularly, with the exceeding standard rate of acrylamide and aluminum-containing additives reaching an alarming 10.6% and 4.3%, respectively, and the exceeding standard rates of sorbic acid and sodium cyclamate in prepared beverages were both 1.59%.
Risk ranking results indicated that aluminum-containing additives and acrylamide in puffed foods, as well as sodium cyclamate in freshly prepared beverages, posed elevated health risks. Particular attention should be paid to health risks in puffed foods and prepared beverages especially among populations with high and frequent consumption of these foods. The findings provide a scientific foundation for identifying potential hazards and regulatory priority of food safety in food around schools.
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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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