Dr. Najat Saliba is a Professor of Analytical Chemistry and the Director of the Centre for Nature Conservation at the American University of Beirut. She was appointed a laureate of the L’Oréal-UNESCO For Women in Science program in 2019. Her research considers ambient pollutants in Lebanon and the Middle East. Dr. Saliba investigates the toxic and carcinogenic chemical constituents of electronic cigarettes and hookahs. She was the first to identify compounds such as formaldehyde in hookahs and went on to show that electronic cigarettes can generate carbon monoxide. She is part of the Center for the Study of Tobacco Products at Virginia Commonwealth University. Dr. Saliba is part of a National Institutes of Health project to investigate the impact of smoking shisha. She was part of a $2.8 million grant to develop computer models to analyze tobacco toxicity. Dr. Saliba contributed to the World Health Organization Air Quality Expert Meetings. She established the first Lebanese atmospheric pollutants database. She showed a variety of toxins are emitted during the burning of waste and measured their concentration at the top of a four-story apartment building in Beirut.