Toxicity of nitrite to three species of freshwater invertebrates

• DOI: 10.1002/tox.20155
• Publication Date: 2006-02-03T16:16:54Z
• Authors: Alvaro Alonso; Julio A. Camargo
• Keywords: 0106 biological sciences; Ecology; Nitrite; Planarians; Amphipods; Ecología; Short-term toxicity; Invertebrates; 01 natural sciences; 6. Clean water; Lethal Dose 50; Freshwater; Rivers; Spain; 13. Climate action; Animals; Amphipoda; Nitrites; Water Pollutants, Chemical

Nitrite is a compound with high toxicity to aquatic animals. Several anthropogenic pollution sources are increasing the concentrations of this component nitrogen cycle. Despite toxicity, there little available literature on its effects freshwater invertebrates. Laboratory bioassays were performed obtain data lethal nitrite three species invertebrates: planarian Polycelis felina and amphipods Echinogammarus echinosetosus Eulimnogammarus toletanus. The LC(50), LC(10), LC(0.01) values (mg/L NO(2)--N) at 24, 48, 72, 96 h calculated for each species. E. toletanus most sensitive species, LC(50) 2.09 2.59 mg/L NO(2)--N, respectively. In contrast, P. showed higher tolerance nitrite, value 60.0 NO(2)--N. obtained results compared reported other This study may contribute more appropriate assessment ecological risk in ecosystems.