TABLE 1

Evaluation of potential respiratory irritants among popular e-cigarette refill liquids (n=122), across nine European Union member states in 2016

SubstancePositive samples %Detected values % (w/w)
MeanMinimumMaximum
Menthol41.00.12220.00010.4991
Ethyl maltol36.90.44090.00437.0960
Linalool31.10.02680.00040.2630
Methyl cyclopentanolone26.20.26420.00912.5067
β-damascone18.90.00700.00020.0742
Ethyl vanillin18.00.1714000570.9135
b-Ionone10.70.00290.00050.0076
Acetyl pyrazine9.00.04660.01590.1067
a-Ionone9.00.00480.00050.0120
Ethyl hexanoate8.20.01240.00090.0554
2,5 dimethylpyrazine4.10.00770.00070.0197
α-damascone2.50.00290.00020.0078
3,4 dimethoxy benzaldehyde1.60.02570.01560.0359
Limonene0.80.00010.00010.0001