Laboratory Testing

The Latest ATSDR Substance Priority List of Chemicals and Elements Posing the Most Significant Risk at NPL sites

The Latest ATSDR Substance Priority List of Chemicals and Elements Posing the Most Significant Risk at NPL sites

The rankings are out and three metals top the chart: arsenic, lead, and mercury. The Agency for Toxic Substances and Disease Registry (ATSDR) has released its 2017 list of substances at EPA-managed contamination sites posing the most significant risk to human health.  A total of 275 substances are listed on the entire ATSDR 2017 Substance Priority list.  Here are the Top 50 substances listed.