During the war, US forces doused Vietnam with 72 million liters of defoliants in an attempt to deprive enemy forces of cover.

- Flying a bare 100 feet above the jungle hills west of Hue, 5 bulky 'C-123 providers' cut loose a spray of chemical defoliant on August 14, 1968. The chemicals ...

Chemicals used to kill snail, slugs and unwanted plants were among ­pesticides found in public drinking water supplies at ...