Representative comet images for a healthy donor, benzo[a]pyrene diol epoxide treated cells from a healthy donor, a participant with low DNA damage and a participant with some DNA damage

Representative comet images for (a) a healthy donor (%DNA in tail = 0.67); (b) benzo[a]pyrene diol epoxide treated cells from a healthy donor (%DNA in tail = 32.9); (c) a participant with low DNA damage (%DNA in tail = 0.28); (d) a participant with some DNA damage (%DNA in tail = 9.50).