Mercury in British fish too-but not too much: Haxton, J., Lindsay, D. G., Hislop, J. S., Salmon, L., Dixon, E. J., Evans, W. H., Reid, J. R., Hewitt, C. J. & Jefries, D. F. (1979). Duplicate diet study on fishing communities in the United Kingdom: Mercury exposure in a ‘ritical grouprs. Envir. Res.18, 351