Although second hand e-cig smoke contains fewer of the toxins found in conventional cigarettes, they also contain toxins that are not found in a conventional cigarette, according to a new study.

The study, which was published in the Journal of Environmental Science, Processes and Impacts, showed that there is there is 10 fold decrease in exposure to the organic carcinogens usually found in conventional cigarettes.

However, the researchers also found that e-cigarette smoke contains the toxic element chromium, which is absent from traditional cigarettes, as well as nickel at levels four times higher than normal cigarettes.

Worried about how e-cigarettes impact you. Check out our feature story Your E Cig Exclusive.

Also check out What’s Inside an E-Cigarette.