Aquashade: Revised Occupational and Residential Exposure Assessment and Recommendations for the Reregistration Eligibility Decision Document.
A combination of erioglaucine (Acid Blue 9 or FD&C Blue No.1) and tartrazine (Acid Yellow 23 or FD&C Yellow No.5) is commonly referred to as Aquashade. The two dyes work by controlling the portion of the light spectrum required for photosynthesis, thereby limiting the growth of filamentous algae and submerged aquatic vegetation.
|Office of Prevention, Pesticides, and Toxic Substances|
|Office of Reregistration 3|
|Health Effects Division|