Berkeley Lab Thirdhand Smoke Researchers (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption These are Berkeley Lab scientists (from left) Altaf Sarker, Mohamad Sleiman, Lara Gundel, Bo Hang and Hugo Destaillats, who worked on the thirdhand smoke study. Credit Berkeley Lab Usage Restrictions credit Berkeley Lab License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.