Chen Shao-Wei, Chen Zi-Hui, Wang Ping, Huang Rui, Huo Wei-Lun, Huang Wei-Xiong, Yang Xing-Fen, Peng Jie-Wen
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.
Bull Environ Contam Toxicol. 2018 Sep;101(3):398-402. doi: 10.1007/s00128-018-2388-3. Epub 2018 Jul 3.
The offshore area of the South China Sea is an important fishing ground in China. We used a food frequency questionnaire to determine marine fish consumption by local residents, and we detected mercury concentrations in commonly consumed marine fish species. In total, 127.9 g/day of the marine fish consumed was identified in 178 local residents. THg and MeHg concentrations in 209 samples of 22 fish species ranged from 11.3 to 215.0 µg/kg wt and 2.0 to 160.0 µg/kg wt, respectively. The mean MeHg exposure from marine fish to local residents was 0.099 µg/kg bw, accounting for 43.0% of the provisional tolerated weekly intake (PTWI) (1.6 µg/kg bw/week), suggesting a low health risk. However, a potentially high health risk (202.2% of PTWI) was identified in those with 97.5% MeHg exposure.
中国南海近海海域是我国重要的渔场。我们使用食物频率问卷来确定当地居民的海鱼消费量，并检测了常见食用海鱼品种中的汞浓度。在178名当地居民中，共确定每日食用海鱼量为127.9克。22种鱼类的209个样本中的总汞（THg）和甲基汞（MeHg）浓度分别为11.3至215.0微克/千克体重和2.0至160.0微克/千克体重。当地居民从海鱼中摄入的甲基汞平均暴露量为0.099微克/千克体重，占暂定每周耐受摄入量（PTWI）（1.6微克/千克体重/周）的43.0%，表明健康风险较低。然而，甲基汞暴露量处于第97.5百分位数的人群存在潜在的高健康风险（占PTWI的202.2%）。
