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EPA's secret gas chamber experiments: A deceitful failure

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A man — we’ll call him “Subject No. 1” — had a clear plastic pipe stuck into his mouth with his lips sealed around it, while the diesel exhaust from a parked truck outside the gas chamber was mixed with particulate matter and pumped straight into his lungs. The pumped mixture level was 135 times the mean diesel truck emissions exposure in the United States. Scientists Andrew Ghio, Jon Sobus,...

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