Metals are widely spread in the environment. They can have a natural origin or anthropogenic due to industrial processes. Some work environments must be monitorized controlling metals due to the adverse health effects produced from certain exposure levels.


The lab of the National Institute for Silicosis provides analysis by mass spectrometry with plasma source (ICP-MS), that allows the simultaneous analysis of most of the elements at trace (ppm or μg / g) and ultratrace (ppb or ng / g) levels in workplace samples.