Abstract

Abstract Benzotriazoles (BZTs) are a class of organic compounds that have been used as metal anticorrosive and ultraviolet stabilizer additives in a wide range of commercial and industrial applications. These chemicals have been in commercial production and use since the late 1950s with many compounds being produced at volumes exceeding one half million kilograms annually. Some BZT compounds exhibit behaviors characteristic of persistent organic pollutants, and emerging evidence indicates long-term preservation and persistence in sediments. Other BZTs associated with anticorrosion applications appear to be highly resistant to degradation, relatively water soluble, and toxic to aquatic organisms. A significant number of BZTs have been discovered in different environmental compartments at levels justifying further study for fate, transport, environmental persistence, and potential adverse effects. Consequently, BZTs should be considered contaminants of emerging concern in the environment with POP-like characteristics.

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