In 1996, the University of California's Statewide Integrated Pest Management Project reported: Dosages were difficult to control... and as a result soaking or spraying methods are no longer used.

The current application method involves applying metam-sodium products in foam carriers (similar to shaving cream).

[5]The U.S. Food & Drug Administration (FDA, a major operational division of the U.S. Department of Health & Human Services) mentions "dichlobenil" in a report entitled "Herbicidal suppression of bracken and effects on forage production.

"[6] The U.S. Department of Energy - Bonneville Power Administration has reported "high potential" for dichlobenil to enter groundwater.

Dichlobenil is practically nontoxic to birds on a subacute dietary basis, but insufficient data are available to assess chronic avian toxicity.

Since 1995, the U.S. National Institutes of Health has warned about potential damage to humans during indoor usage (see products listed, below): Leave all windows open and fans operating...

[13] As of 2012, the United Nations' International Programme on Chemical Safety (IPCS) has advised that "the substance can be absorbed into the body by inhalation, through the skin and by ingestion... A harmful concentration of airborne particles can be reached quickly when dispersed...

[14] For personal protection during usage, the IPCS advises: Particulate filter respirator adapted to the airborne concentration of the substance...