Learn Glossary preservative

Chlorine

Level 4Significant concernsIn Winter's Dictionary

Chlorine is a preservative — Used in water disinfection, manufacture of carbon tetrachloride, sanitizing fresh produce

What it does

Used in water disinfection, manufacture of carbon tetrachloride, sanitizing fresh produce

Where you'll see it

Drinking water, fresh-cut vegetables

What the research says

May contain carcinogenic compounds (toluene, xylene, styrene). National Cancer Institute 1987 study linked bladder cancer to people drinking chlorinated surface water >40 years. Powerful irritant, fatal upon inhalation, military poison gas.

Regulatory status

  • US FDA: ASP

Sources

  • A Consumer's Dictionary of Food Additives (Winter): A National Cancer Institute study published in 1987 linked bladder cancer to people who had been drinking chlorinated surface water for more than forty years