Full
Outline
To investigate and analyze the contamination status of 27 kinds of elements and inorganic arsenic in seaweed and their products from markets in Hebei Province, and conduct risk exposure assessment.
nductively coupled plasma mass spectrometry (ICP-MS) and high performance liquid chromatography-ICP-MS (HPLC-ICP-MS) were employed to detect multiple elements and inorganic arsenic in 50 samples of seaweed and their products from markets in Hebei Province. Statistical analysis was performed on the detection results. Health risk assessment was conducted using internationally recognized evaluation indicators, including the Nemerow pollution index method, target hazard quotient (THQ), total target hazard quotient (TTHQ), carcinogenic risk (CR), exposure assessment and consumption recommendations.
All 27 kinds of elements and inorganic arsenic were detected,with 22 kinds of elements being fully detected. The lead exceedance rate was 14.6%. The highest single-factor pollution index of nori was Cr (at 1.88), indicating mild pollution. Among the 13 kinds of elements, the THQ of all elements except As was significantly less than 1. The TTHQ of 3 kinds of dried algae species ranked from highest to lowest as porphyra>wakame>kombu, and were all less than 1, indicating no significant adverse impact on human health.
The pollution status of 50 algal samples and their products is relatively safe. However, the comprehensive pollution index of Porphyra reached a mild pollution level. Except for As, both THQ and TTHQ were less than 1,indicating that long-term intake poses no potential health risks to humans.
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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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