Concentrations of metallothionein in the bivalve molluscs Anodonta spp. and Unio spp. from Latvian lakes with different anthropogenic pressureI. Purina, I. Barda, E. Rimsa, R. Poikane and M. JansonsE3S Web of Conferences, 1 (2013) 34005DOI: https://doi.org/10.1051/e3sconf/20130134005