Figure 1
From: High concentrations of flavor chemicals are present in electronic cigarette refill fluids
Total Concentrations of Flavor Chemicals and Nicotine in EC Refill Fluids. (a) The total concentration of flavor chemicals ranged from <1 mg/ml to 362 mg/ml. Total weight concentration of the flavor chemicals (mg/ml) was determined for each product and plotted according to the ranges in the figure. The numbers above the frequency bars represent the percentage of products in each group. (b) The concentration of nicotine (x-axis) plotted against the total concentration of flavor chemicals (y-axis) for each product, which ranged from 0.005–362 mg/ml.
