Triton-X100 is used in many medicinal products. However the main ingredient in pesticides ist water, which is also the main ingredient in vaccines - its not drinking water that would be to risky, its water for injection pyrogen free.
3) Heavy Metals Like Mercury & Aluminum
An Organomercurial -but no metal was used- in many vaccines as preservative 12 yrs ago. Well and Aluminium ist not a heavy metal, and metalls are not in vaccines, but rather insoluble Aluminium salts in adjuvanted vaccines.