Assessment of Heavy Metals in Bivalves Molluscs of Apulian Region: a 3-years control activity of a EU LaboratoryO. Miedico, C. Pompa, M. Tarallo and A. E. ChiaravalleE3S Web of Conferences, 1 (2013) 11006DOI: https://doi.org/10.1051/e3sconf/20130111006