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Dr Geoffrey Fong, Principal Investigator of the ITC Project in Waterloo Dr Fong will present the study findings at a conference of tobacco researchers and policymakers in Berlin on February 20, 2020

Exposure to biomass smoke and chronic airway disease in Mexican women

"We found that smokers who consume cigarettes immediately after waking have higher levels of NNAL -- a metabolite of the tobacco-specific carcinogen NNK -- in their blood than smokers who refrain from smoking a half hour or more after waking, regardless of how many cigarettes they smoke per day," said Steven Branstetter, assistant professor of biobehavioral health, Penn State

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This high average confirms cigarette butts as the most prevalent littered item worldwide [3, 14], while the broad standard deviation reflects substantial variability among regions and environmental settings