- Fracking chemical cocktail
- Ultrafine particulate matte
- Chloropicrin
- Sodium hydroxide
- Halogenated flame retardants
- Dioxin
- Lead
- Genetically modified organisms (GMOs)
- Nitrates
- Perchloroethylene (Perc)
- Trichloroethylene (TCE)
- Formaldehyde
- Phthalates
- Bisphenol-a (BPA)
- Mercury
- Polychlorinated biphenyls (PCBs)