Toxicity Studies:

Study Title	Study Result	Toxicity Category
Acute Inhalation Toxicity	LC 50 > 2.71 mg/L	IV
Acute Dermal Irritation	slightly irritating	IV
Skin Sensitization	no irritation	Not a sensitizer
Acute Oral Toxicity	LD 50 > 5050 mg/kg	IV
Acute Eye Irritation	minimally irritating	IV
Acute Dermal Toxicity	LD 50 > 5050 mg/kg	IV

•	Based on the acute toxicity study results, the colorants Sylva uses are considered to be at the lowest toxicity level (Category IV) possible, and are not a skin sensitizer. These studies were performed under GLP, and by following the EPA accepted procedures.
•	Based on study results to be considered toxic:
	- 200 lbs. man would have to consume more than 1 pound of the colorants Sylva uses in concentrate
	- or -
	- 200 lbs. man would have to consume 150-216 lbs. of wood mulch treated with colorant (application rate of 3 lbs. per cubic yard)

http://www.epa.gov/superfund/resources/soil/appd_a.pdf

Toxicity Studies | Heavy Metal & VOC Studies | Arsenic Study