Heather Lynch

Heather Lynch, MPH is a Senior Toxicologist and Senior Project Manager at Gradient, an environmental consulting firm in Cambridge, MA.  She received an undergraduate degree in Environmental Studies from Knox College and a Master of Public Health Degree in environmental health from the Boston University School of Public Health.  Her areas of expertise include systematic review and weight of evidence methodologies, controlled human exposure study design, and the toxicology of heavy metals (e.g., arsenic and lead) and perfluoroalkyl substances.

 Ms. Lynch's primary responsibilities at Gradient include critical review of toxicology and epidemiology studies for regulatory comment, human health risk assessment, and litigation project support.  She has authored numerous peer-reviewed publications on various risk assessment topics in collaboration with colleagues at Gradient.

Prior to joining Gradient, Ms. Lynch worked at the non-profit Center for Health, Environment, and Justice, writing and updating informational materials for the public on a wide range of environmental health and justice issues.  She also worked as a toxicologist for the environmental consulting firm ICF International, working predominantly on large, chemical-specific risk assessments for several programs within the US EPA National Center for Environmental Assessment.


Ms. Lynch was nominated for the SAB by the Executive Office of Housing and Economic Development.