[5] It protects polymers and organic pigments from UV radiation and helps maintain the original appearance and physical integrity of moldings, films, sheets and fibers during outdoor weathering.

[8] A bioaccumulation factor (log BAF) of 2,6–3,4 was determined in fish from Canadian rivers.

[10] UV-328 has been found to be associated with adverse health effects in mammals based on repeated-dose toxicity studies conducted in rats and dogs, with the primary health effect being liver toxicity.

[11] The finding of UV-328 in plastics sampled on remote beaches,[12] in stomachs of seabirds[13] and in preen gland oil[14][15] show that it is also transported over long distances and is taken up by biota.

[16] Detections in Arctic biota include eggs of common eider, kittiwake, European shag and glaucous gull as well as the livers of mink.