2, 4-Dichlorophenoxyacetic acid (or 2, 4-D) is the world’s most commonly used herbicide, used mostly against broad-leafed weeds in crops. It can also be found in common household weed killers, such as Weed B Gon or Killex.
Long-term exposure to 2, 4-D can cause damage to the eyes, possibly causing blindness. While the United States Environmental Protection Agency claims that there is no evidence to connect 2, 4-D to cancer, the International Agency for Research on Cancer has classified it as a Class 2B carcinogen, with a potential for causing cancer in humans.
Refrigerator water filters that can remove 2, 4-D include: