Apology letter Chicgoua Noubactep Angewandte Geologie, Universität Göttingen, Goldschmidtstraße 3, D - 37077 Göttingen, Germany. Kultur und Nachhaltige Entwicklung CDD e.V., Postfach 1502, D - 37005 Göttingen, Germany. e-mail: cnoubac@gwdg.de; Tel. +49 551 39 3191, Fax. +49 551 399379 Dear Editor, I would like to sincerely apologize for a Letter to the Editor entitled “Comment on JHM 175 (2010) 680-687 "Reductive dechlorination of γ-hexachloro-cyclohexane using Fe-Pd bimetallic nanoparticles” that I submitted and was published in volume 177 of The Journal of Hazardous Materials (available online 15 January 2010). This letter contained unfounded accusations against V. Nagpal, A.D. Bokare, R.C. Chikate, C.V. Rode and K.M. Paknikar. The false claims should never have been submitted. In addition, I apologize to The Journal of Hazardous Materials for my lapse in judgment and I regret having made the claims in the letter. Sincerely, Chicgoua Noubactep