Objective To investigate the current situation of cadmium contamination in food and explore the dietary exposure risk of cadmium in the daily diet of residents in the southeast coastal areas. Methods Random sampling was conducted in major large-scale agricultural markets, commercial supermarkets, restaurants and other places throughout the city, with common commercially available foods as the research object. A total of 1285 food samples were collected from 7 categories, including grains and their products, vegetables, aquatic animals and their products, meat products, nuts and seeds, fresh edible fungi and seasonings. Inductively coupled plasma mass spectrometry method (ICP-MS) was applied for quantitative detection of cadmium content. The single factor pollution index (Pi) and target hazard factor (THQ) were used to evaluate the quality and consumption safety of each category of samples. Results After statistical analysis, there were significant differences in cadmium content among different categories of food. In the tested samples, the total detection rate of cadmium was 54.24%, and the detection result was undetected-2.86 mg/kg. Among them, crustaceans (sea crabs, shrimp) had the highest average detection value (1.2264 mg/kg). Conclusion The dietary exposure risk assessment results of tested sample indicate THQ<1. Therefore, the cadmium contamination in this region shows a low health risk to residents.
| 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 |