Environmental Sciences

Gradient provided expert evaluation and testimony in a water rights case filed in the Supreme Court of the United States. We used hydrological modeling and data analysis to assess historical changes in water use, groundwater conditions, and stream flows.

Gradient assessed the utility and risks of using refrigerants with low global warming potential in retail store and commercial kitchen applications. We determined potential exposure risks and evaluated potential chemical leakage and dispersion using simulations and chemical testing.

Gradient reviewed the approach used to calculate health co-benefits when assessing impacts of the federal Clean Power Plan. We evaluated the scientific validity of the models, data sources, and assumptions underlying the calculations as well as the role of the co-benefits estimates in the program cost-benefit analysis.

Gradient evaluated the potential for saltwater intrusion into an irrigation well on Cape Cod, MA using site-specific groundwater data, well-specific pumping information, and theoretical calculations.

Gradient reviewed a document describing the potential hazards associated with electric vehicle battery components (and their potential breakdown products), focusing on relevant health effects data and regulatory exposure limits.