Endo Tetsuya, Hayasaka Moriaki, Ogasawra Hideki, Kimura Osamu, Kotaki Yuichi, Haraguchi Koichi
School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan.
Sapporo Higashi-Tokusyukai Hospital, N33-E14, Higashi-ku, Sapporo, Hokkaido, 065-0033, Japan.
PLoS One. 2015 Jun 12;10(6):e0128149. doi: 10.1371/journal.pone.0128149. eCollection 2015.
We analyzed the Hg concentration, and δ¹³C and δ¹⁵N values in the scalp hair of residents from seven countries; Vietnam, New Zealand, Spain, the USA, South Korea, Brazil and Japan. Relationships among the data in each country and among the seven countries were then examined. The highest Hg concentration as well as the highest or higher δ¹⁵N value in each country was found in the hair of a heavy marine fish-eater, whereas the lowest Hg concentration and δ¹⁵N value were found in the hair of a vegetarian or non (marginal)-fish eater. Hg concentrations were positively correlated with the δ¹⁵N values in each country, and increased markedly in samples with δ¹⁵N values exceeding 9.0 ‰, probably due to fish consumption. The highest Hg concentration could be found in sample, with a δ¹³C value between -19 and -18‰, probably reflecting the δ¹³C value of the marine food web.
我们分析了来自七个国家（越南、新西兰、西班牙、美国、韩国、巴西和日本）居民头皮头发中的汞浓度、δ¹³C和δ¹⁵N值。然后研究了每个国家以及这七个国家的数据之间的关系。在每个国家，食用大量海鱼者的头发中汞浓度最高，δ¹⁵N值最高或较高，而素食者或非（少量）食鱼者的头发中汞浓度和δ¹⁵N值最低。在每个国家，汞浓度与δ¹⁵N值呈正相关，并且在δ¹⁵N值超过9.0‰的样本中显著增加，这可能是由于食用鱼类所致。汞浓度最高的样本中，δ¹³C值在-19至-18‰之间，这可能反映了海洋食物网的δ¹³C值。
