TOTAL AND METHYL MERCURY LEVELS IN HUMAN SCALP HAIRS

Chai Chifang，

Feng Weiyue，

Qian Qinfang，

Guan Ming，

Li Xinji，

Lu Yilun，

Zhang Xiumei

Nuclear Science and Techniques

Vol.5, No.2

pp.65-70

Published in print 01 May 1994

42800

The contents of total and methyl mercury in scalp hair samples of 1179 fishermen living at a typical Hg-polluted region in Northeast China and 27 lying-in women and their new born babies in Beijing have been determined by instrumental neutron activation analysis, gas chromatography (electron coupling) and other techniques. Only 18 of all fishermen have the Hg contents above 5 µg/g, which indicates that the Hg pollution there has been substantially alleviated. The longitudinal Hg patterns of the lying-in women show a gradually lowering tendency during pregnant period. Further, the Hg contents of the new-born babies are generally above or close to those of their mothers, confirming the mechanism that the methyl Hg, an organic species of Hg with high toxicity, is readily able to penetrate the placental barrier and accumulated in fetus. Thus, the mercury poison has occurred at the early stage of pregnancy.

Chemical species of mercuryTotal HgMethyl HgNeutron activation analysisGas chromatographyHuman hairHg pollution

REFERENCES

Suzuki T, Miyama T, Katsunuma H. Bull Environ Contam Toxicol, 1971; 5: 502

Tsuchiya H, Mitani K, Kodama K et al. Arch Environ Health, 1984; 37: 11

Lin Y H, Environ Chem (in Chinese), 1983; 2: 10

United Nation Environmental Programme, The determination of methylmercury, total mercury and total selenium in human hair, Reference Methods for marine pollution studies No.46 (draft), October, 1987

Chai Chifang, Qian Qinfang, Feng Weiyue et al. NAHRES-7. Vienna: IAEA, 1991: 41-48

Chai Chifang, Qian Qinfang, Feng Weiyue et al. NAHRES-13, Vienna: IAEA, 1992; 51-58

Lauwerys R, Buchet J P, Roels H et al. Environ Res, 1978; 15: 278

Pitkin R M, Vahns J A, Filer L J et al. Soc Exp Biol Med, 1976; 151: 565

Skerfving S. Bull Environ Cont Toxicol, 1984; 41: 475

Lin Y H. In: Wang K, ed. Trace elements in life sciences (in Chinese). Beijing: Chinese Meteorological Press, 1991: Vol.1, 300-337