<unk>  is of moderate toxicity to the eyes and only mildly toxic on the skin. No history of human intoxication by<unk>  has been documented, so symptoms of acute exposure are difficult to characterize.<unk>  is the most persistent of its family of herbicides. It does not adhere to soil, so may leach to groundwater, and has in fact been detected there. It is degraded in soil and water mainly by microbes.<unk>  has very little tendency to accumulate in aquatic life. Gardeners who use dung as fertilizer should check to make certain that the animal source has not grazed on<unk> -treated hay, as the dung still has broadleaf-killing potency. In regards to occupational exposures, the U. S. Occupational Safety and Health Administration has established a permissible exposure limit of 15 mg/m3 total exposure and 5 mg/m3 for respiratory exposure, over an eight-hour workshift.
Picloram
Ajmalicine
Safrazine
Cyhalothrin
Dimetacrine
Azacyclonol
Phenoxyethanol
Povidone-iodine