Welders on railroads have contracted permanent lung diseases, cancers or permanent neurological and memory disorders due to long term inhalation of the harmful particulates in welding fumes. These types of cases require careful investigation and it requires our law firm to engage some of the top experts in the fields involved in order to determine whether a particular cancer or disease was caused by the harmful toxic welding fume exposure in question. Manganese is but one known toxic substance in welding fumes that is a known cause of neurological injuries, and other known carcinogens are constituents of the fumes.