Department of Health Risk Assessment Research Center, Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, No. 160 Qunxian Road, Panyu District, Guangzhou, 511430, China.
Guangdong Provincial Center for Disease Control and Prevention, No. 160 Qunxian Road, Panyu District, Guangzhou, 511430, China.
Environ Geochem Health. 2019 Oct;41(5):2055-2066. doi: 10.1007/s10653-019-00254-1. Epub 2019 Feb 26.
Even though a growing number of reports indicated favorable health effects with fish consumption, kinds of hazardous substances in fish were detected in fish and to be exceeded advisory limitation. Benefit-risk assessment of commonly consumed fish is urgently needed. We conducted fish consumption survey and fish sampling in the coast of South China Sea to assess benefit-risk effect of commonly consumed fish species. For local residents, weekly methyl mercury (MeHg) exposures from commonly consumed fish species ranged from 0.12 to 2.11 μg/kg bw. Apart from Muraenesox cinereus and Acanthopagrus latus, the rest of 92% (23/25) fish species were at low risk of MeHg exposure. Daily docosahexaenoic acid intakes via consuming specific fish were between 42.18 and 1687.04 mg/day. A total of 72% (18/25) fish species could provide 200 mg/day of DNA for local residents. Benefit-risk assessment assuming intelligence quotient (IQ) score model showed net IQ point gains between 1.53 and 5.65 points with consuming various fish species, indicative of large distinction of health benefit from various fish species. This study suggests commonly consumed fish species from China South Sea could bring much more positive effect than negative effect. Species-specific fish should be considered when providing recommendations of fish consumption. Muraenesox cinereus and Acanthopagrus latus should be minded with risk of MeHg exposure in taking large amounts.
尽管越来越多的报告表明鱼类消费对健康有益，但鱼类中仍检测到各种有害物质，且这些物质的含量超过了建议限量。因此，迫切需要对常见食用鱼类进行效益-风险评估。我们在中国南海沿海进行了鱼类消费调查和鱼类采样，以评估常见食用鱼类品种的效益-风险效应。对于当地居民，每周从常见食用鱼类中摄入的甲基汞（MeHg）的暴露量从 0.12 至 2.11μg/kg bw 不等。除了灰鳍鲷和倒刺鲃，其余 92%（23/25）的鱼类品种的 MeHg 暴露风险较低。通过食用特定鱼类，每天摄入的二十二碳六烯酸（DHA）在 42.18 至 1687.04mg 之间。共有 72%（18/25）的鱼类品种可为当地居民提供 200mg/天的 DNA。假设智商（IQ）评分模型的效益-风险评估表明，食用各种鱼类可使净智商得分提高 1.53 至 5.65 分，这表明不同鱼类品种的健康效益有很大差异。本研究表明，中国南海的常见食用鱼类可能带来的正面影响大于负面影响。在提供鱼类消费建议时，应考虑具体的鱼类品种。对于大量食用灰鳍鲷和倒刺鲃，应注意 MeHg 暴露的风险。
