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In the new study, the researchers tested 148 e-liquids. They found that the e-liquids contained a total of 143 chemicals, which indicates that the ingredients in e-cigarettes are extremely diverse, said senior study author Robert Tarran, [...]

With more than 7,700 commercially available e-liquid flavors [...] a quicker method is needed to screen e-liquids to evaluate their safety and chemical makeup, according to the study.