The iron foundries are still well represented in the area of Brescia and, despite having been involved in a major technological developments, have still risks to the health of workers. In order to verify the state of the art and effectiveness of prevention measures implemented by various companies, in recent years have carried out numerous inspections, environmental monitoring and biological. Furthermore, there were in the regional information system diseases reported and/or by the reported health. In particular it is shown that, in addition to chemical and physical risk factors, although in a much reduced compared to the 80s, are still present in our workplace pollutants (PAHs, silica, metal fumes, formaldehyde) at the base of classification of iron foundries in group 1, carcinogenic to humans, IARC, 1987 e 2012.