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ASHEVILLE -- An expert witness says there's no scientific evidence that emissions from the Tennessee Valley Authority's coal-fired power plants cause health problems.
The Asheville Citizen-Times reports that epidemiologist Suresh Moolgavkar testified Friday on behalf of TVA, saying "there wasn't sufficient evidence to support a causal relationship."
The University of Washington professor testified during a federal court hearing in North Carolina's lawsuit against TVA. The lawsuit accuses the utility of illegally allowing emissions to cross state lines.
Moolgavkar's testimony clashed with North Carolina witness Jonathan Levy of the Harvard School of Public Health. Levy said reducing sulfur dioxide, mercury and other pollutants could reduce several health problems.
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