Ruohao Zhang

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  • Assistant Professor of Agricultural Economics, Penn State
Coal-fired power plants emit both smoke and steam. Paul Souders/Stone via Getty Images

Coal plants emitted more pollution during the last government shutdown, while regulators were furloughed

Ruohao Zhang, Penn State; Huan Li, North Carolina A&T State University, and Neha Khanna, Binghamton University, State University of New York

As soon as the 2018-2019 shutdown began, coal-fired power plants started emitting more particulate matter pollution. And when the inspections resumed, the levels dropped back to normal.
This well was contaminated with high levels of PFAS from firefighting foam used at a small airport nearby. Brian van der Brug/Los Angeles Times via Getty Images

You can be exposed to PFAS through food, water, even swimming in lakes – new maps show how risk from ‘forever chemicals’ varies

Ruohao Zhang, Penn State; Jiameng Zheng, Louisiana State University ; Wendong Zhang, Cornell University, and Xibo Wan, University of Connecticut

PFAS exposure can vary significantly from one community to the next. A close-up view of three Great Lakes states offers some insights for everyone.

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