A freshwater mesocosm study into the effects of the neonicotinoid insecticide thiamethoxam at multiple trophic levels

Autor: Simon N Emburey, Helen M. Thompson, Udo Hommen, Leilan R. Baxter, Meaghean C. Finnegan, Paul F. Hoekstra, Mick Hamer, Mark L. Hanson
Přispěvatelé: Publica
Rok vydání: 2018
Předmět:
Zdroj: Environmental Pollution. 242:1444-1457
ISSN: 0269-7491
Popis: Thiamethoxam is a neonicotinoid insecticide used widely in agriculture to control a broad spectrum of insect pests. To assess potential risks from this compound to non-target aquatic organisms, an outdoor mesocosm study was performed. Mesocosms (1300 L) were treated once with a formulated product with the active substance (a.s.) thiamethoxam at nominal concentrations of 1 (n = 3), 3 (n = 3), 10 (n = 4), 30 (n = 4), and 100 (n = 2) mg a.s./L, plus untreated controls (n = 4). Primary producers (phytoplankton), zooplankton, and macroinvertebrates were monitored for up to 93 days following treatment. Thiamethoxam was observed to have a water column dissipation half-life (DT50) of
Databáze: OpenAIRE