Pesticides, herbicides, and fungicides are common quick fixes for the garden and home, and despite their known toxicity, 1400 of them are used as ingredients in home and garden products. They are often combined with other toxic substances, including solvents, and make their way into over 34,000 products. Barbeque charcoal lighters contain petroleum distillates, which aside from tainting food, often contain benzene, a human carcinogen.