Methylmercury level in umbilical cords from patients with congenital Minamata disease

Masazumi Harada, Hirokatsu Akagi, Toshihide Tsuda, Takako Kizaki, Hideki Ohno

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A total of 151 umbilical cords during the period from 1950 to 1969 were collected from the residents of the Minamata area (including 25 patients with congenital Minamata disease) for methylmercury (MeHg) analysis. When the MeHg discharge from the Chisso Company's Minamata factory into the Minamata Bay is compared with the incidence of congenital Minamata disease, the abrupt increase of the former in 1952 [Nishimura H. Chem. Today 1998;323:60-66] was found to precede that of the latter by approximately 2 years, thereby indicating that MeHg is the cause of the disaster. This was confirmed by the elevated levels of MeHg in the umbilical cords from residents of the Minamata area [from 0.35±0.30 (S.D.) ppm in 1952 to 0.96±0.75 ppm in 1955], the MeHg levels (1.60±1.00 ppm) in the cords from patients with congenital Minamata disease showing the highest values [P

Original languageEnglish
Pages (from-to)59-62
Number of pages4
JournalScience of the Total Environment
Volume234
Issue number1-3
DOIs
Publication statusPublished - Aug 30 1999

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Keywords

  • Congenital Minamata disease
  • Methylmercury
  • Umbilical cord

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)

Cite this

Methylmercury level in umbilical cords from patients with congenital Minamata disease. / Harada, Masazumi; Akagi, Hirokatsu; Tsuda, Toshihide; Kizaki, Takako; Ohno, Hideki.

In: Science of the Total Environment, Vol. 234, No. 1-3, 30.08.1999, p. 59-62.

Research output: Contribution to journalArticle

Harada, Masazumi ; Akagi, Hirokatsu ; Tsuda, Toshihide ; Kizaki, Takako ; Ohno, Hideki. / Methylmercury level in umbilical cords from patients with congenital Minamata disease. In: Science of the Total Environment. 1999 ; Vol. 234, No. 1-3. pp. 59-62.
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