Overview
- A graduate student told hospital staff on Wednesday that they had synthesized dimethylmercury in Building 18 and sought treatment, prompting a multiagency hazmat response.
- MIT closed the Dreyfus chemistry building on Friday and brought in industrial hygienists and city hazmat teams for targeted testing and specialized cleanup.
- With the student’s permission, MIT disclosed that an initial blood test showed no detectable mercury, though medical monitoring continues because some effects can appear much later.
- Cambridge Fire said meters used to survey surrounding areas appeared to be clear and common areas in the student’s residence were professionally cleaned while the student’s unit was sealed.
- An unverified leaked email attributed to the chemistry chair stated the compound’s use would be unauthorized and prohibited at MIT, and officials say key questions remain about what was actually produced and how exposure may affect the student.