Navigating the TMDL Process by R. Tjeerdema - 9781843397663

IWA Publishing

Navigating the TMDL ProcessSediment Toxicity\nAuthor(s): R. Tjeerdema\nFormat: Paperback\nPublisher: IWA Publishing, United Kingdom\nImprint: IWA Publishing\nISBN-13: 9781843397663, 978-1843397663\nSynopsis\nA key step in the development of Total Maximum Daily Load (TMDL) allocations for water bodies impaired due to sediment toxicity is the identification of chemicals responsible for toxicity. Sediment toxicity identification evaluation procedures (TIEs) are one of the primary tools used in this process.\nThis project evaluated standardized and recently developed sediment TIE methods developed by the US EPA and others, to determine their utility for identifying chemicals responsible for toxicity. In this study, formulated sediments were spiked with five chemicals: copper, fluoranthene, tetrachlorobenzene, nonylphenol and ammonia. Experiments were conducted using sediments spiked with single chemicals and chemical mixtures. Toxicity tests used the estuarine amphipod Eohaustorius estua.