{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T14:18:20Z","timestamp":1783520300693,"version":"3.55.0"},"reference-count":26,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"},{"start":{"date-parts":[[2015,1,30]],"date-time":"2015-01-30T00:00:00Z","timestamp":1422576000000},"content-version":"vor","delay-in-days":29,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100004814","name":"California State Water Resources Control Board","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100004814","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["setac.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,1,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Many watersheds in the Central Valley region of California are listed as impaired due to pyrethroid-associated sediment toxicity. The Central Valley Regional Water Quality Control Board is developing numeric sediment quality criteria for pyrethroids, beginning with bifenthrin. Criteria are being developed using existing data, along with data from 10\u2009d and 28\u2009d toxicity tests with Hyalella azteca conducted as part of the current study. A single range-finder and 2 definitive tests were conducted for each test duration. Median lethal concentrations (LC50s), as well as LC20s and inhibition concentrations (IC20s) were calculated based on measured whole sediment bifenthrin concentrations and interstitial water concentrations. Sediment LC50s were also corrected for organic C content. Average LC50s were not significantly different in 10\u2009d versus 28\u2009d tests with H. azteca: 9.1 and 9.6\u2009ng\/g bifenthrin for 10\u2009d and 28\u2009d tests, respectively. Average LC20 values were also similar with concentrations at 7.1 and 7.0 for 10\u2009d and 28\u2009d tests, respectively. Bifenthrin inhibition concentrations (IC20s) based on amphipod growth were variable, particularly in the 28\u2009d tests, where a clear dose-response relationship was observed in only 1 of the definitive experiments. Average amphipod growth IC20s were 3.9 and 9.0\u2009ng\/g for 10\u2009d and 28\u2009d tests, respectively. Amphipod growth calculated as biomass resulted in IC20s of 4.1 and 6.3\u2009ng\/g for the 10\u2009d and 28\u2009d tests, respectively. Lack of a clear growth effect in the longer term test may be related to the lack of food adjustment to account for amphipod mortality in whole sediment exposures. The average C-corrected LC50s were 1.03 and 1.09\u2009\u03bcg\/g OC for the 10\u2009d and 28\u2009d tests, respectively. Interstitial water LC50s were determined as the measured dissolved concentration of bifenthrin relative to interstitial water dissolved organic carbon. The average LC50s for dissolved interstitial water bifenthrin were 4.23 and 4.28\u2009ng\/L for the 10\u2009d and 28\u2009d tests, respectively. In addition, a set of 10\u2009d and 28\u2009d tests were conducted at 15\u2009\u00b0C to assess the relative toxicity of bifenthrin at a lower temperature than the standard 23\u2009\u00b0C test temperature. These results showed that bifenthrin was more toxic at the lower temperature, with LC50s of 5.1 and 3.4\u2009ng\/g bifenthrin in 10\u2009d and 28\u2009d tests, respectively. Amphipod growth at 15\u2009\u00b0C after a 28\u2009d exposure resulted in the lowest effect concentration of all experiments conducted (IC20\u2009=\u20090.61\u2009ng\/g). This article discusses how bifenthrin dose\u2013response data from 10\u2009d and 28\u2009d exposures inform development of sediment quality criteria for this pesticide for California Central Valley watersheds. Integr Environ Assess Manag 2015;11:319\u2013328. \u00a9 2015 SETAC<\/jats:p>\n               <jats:p>Key Points<\/jats:p>\n               <jats:p>Sediment toxicity due to pyrethroid pesticides, in particular bifenthrin, is widespread in California and has lead to statewide regulatory actions to reduce pyrethroid loading in watersheds. The Central California Water Board is developing sediment quality criteria for bifenthrin and other pyrethroids. The process for developing sediment quality criteria requires acute and chronic toxicity data for a number of species and the results of the current study provide 10d and 28d data for bifenthrin using the amphipod Hyalella azteca in sediment, and sediment interstitial. Pyrethroids are more toxic at colder temperatures, so data are also provided for acute and chronic tests conducted at two temperatures. Results showed little difference in response between 10d and 28d tests conducted at the standard test temperature, and more toxicity at the lower temperature. The paper discusses how these results will be used in the development of sediment quality criteria for bifenthrin.<\/jats:p>","DOI":"10.1002\/ieam.1609","type":"journal-article","created":{"date-parts":[[2015,1,6]],"date-time":"2015-01-06T11:38:31Z","timestamp":1420544311000},"page":"319-328","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Relative toxicity of bifenthrin to <i>Hyalella azteca<\/i> in 10 day versus 28 day exposures"],"prefix":"10.1093","volume":"11","author":[{"given":"Brian S","family":"Anderson","sequence":"first","affiliation":[{"name":"Department of Environmental Toxicology University of California Davis California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bryn M","family":"Phillips","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer P","family":"Voorhees","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Megan A","family":"Petersen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lydia L","family":"Jennings","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tessa L","family":"Fojut","sequence":"additional","affiliation":[{"name":"Central Valley Regional Water Quality Control Board Rancho Cordova California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martice E","family":"Vasquez","sequence":"additional","affiliation":[{"name":"California Department of Fish and Wildlife Rancho Cordova California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Catherine","family":"Siegler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronald S","family":"Tjeerdema","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2015,1,1]]},"reference":[{"key":"2025010717401785200_ieam1609-bib-0001","doi-asserted-by":"crossref","first-page":"966","DOI":"10.1897\/04-146R1.1","article-title":"Use and toxicity of pyrethroid pesticides in the Central Valley, CA, U. S","volume":"24","author":"Amweg","year":"2005","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0002","doi-asserted-by":"crossref","first-page":"2375","DOI":"10.1897\/02-427","article-title":"Ecotoxicologic impacts of agricultural drain water in the Salinas River, California, USA","volume":"22","author":"Anderson","year":"2003","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0003","doi-asserted-by":"crossref","first-page":"402","DOI":"10.1016\/j.envpol.2005.08.056","article-title":"Identifying primary stressors impacting macroinvertebrates in the Salinas River (California, USA): Relative effects of pesticides and suspended particles","volume":"141","author":"Anderson","year":"2006","journal-title":"Environ Poll"},{"key":"2025010717401785200_ieam1609-bib-0004","author":"Anderson","year":"2007"},{"key":"2025010717401785200_ieam1609-bib-0005","first-page":"370","volume-title":"Recent advances in sediment toxicity identification evaluations emphasizing pyrethroid pesticides. Synthetic Pyrethroids: Occurrence and Behavior in Aquatic Environments","author":"Anderson","year":"2008"},{"key":"2025010717401785200_ieam1609-bib-0006","author":"Anderson","year":"2011"},{"key":"2025010717401785200_ieam1609-bib-0007","doi-asserted-by":"crossref","first-page":"2587","DOI":"10.1897\/07-286.1","article-title":"Analysis of pyrethroids in sediment porewater by solid phase microextraction","volume":"26","author":"Bondarenko","year":"2007","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0008","doi-asserted-by":"crossref","first-page":"4663","DOI":"10.1021\/es001269l","article-title":"Estimating dissolved organic carbon partition coefficients for nonionic organic chemicals","volume":"34","author":"Burkhard","year":"2000","journal-title":"Environ Sci Technol"},{"key":"2025010717401785200_ieam1609-bib-0009","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1002\/etc.5620080805","article-title":"Toxicology of synthetic pyrethroids in aquatic organisms: An overview","volume":"8","author":"Coats","year":"1989","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0012","first-page":"51","article-title":"Aquatic life water quality criteria derived via the UC Davis Method II. Pyrethroid insecticides","volume":"216","author":"Fojut","year":"2012","journal-title":"Rev Environ Contam Toxicol"},{"key":"2025010717401785200_ieam1609-bib-0013","first-page":"175","article-title":"Methods for deriving pesticide aquatic life criteria for sediments","volume":"224","author":"Fojut","year":"2013","journal-title":"Rev Environ Contam Toxicol"},{"key":"2025010717401785200_ieam1609-bib-0014","doi-asserted-by":"crossref","first-page":"1051","DOI":"10.1897\/08-291.1","article-title":"Temperature as a toxicity identification evaluation tool for pyrethroid insecticides: Toxicokinetic confirmation","volume":"28","author":"Harwood","year":"2009","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0015","doi-asserted-by":"crossref","first-page":"7003","DOI":"10.1021\/es801346g","article-title":"Statewide investigation of the role of pyrethroid pesticides in sediment toxicity in California's urban waterways","volume":"42","author":"Holmes","year":"2008","journal-title":"Environ Sci Technol"},{"key":"2025010717401785200_ieam1609-bib-0016","doi-asserted-by":"crossref","first-page":"411","DOI":"10.1016\/j.ibmb.2011.03.003","article-title":"The biology of insecticidal activity and resistance","volume":"41","author":"Perry","year":"2011","journal-title":"Insect Biochem Mol Biol"},{"key":"2025010717401785200_ieam1609-bib-0017","doi-asserted-by":"crossref","first-page":"648","DOI":"10.1016\/j.chemosphere.2008.10.026","article-title":"Evaluation of phase II sediment toxicity identification evaluation methods for freshwater whole sediment and interstitial water","volume":"74","author":"Phillips","year":"2009","journal-title":"Chemosphere"},{"key":"2025010717401785200_ieam1609-bib-0018","author":"Phillips","year":"2014"},{"key":"2025010717401785200_ieam1609-bib-0019","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1002\/etc.5620200326","article-title":"Probabilistic risk assessment of cotton pyrethroids: I. Distributional analysis of laboratory aquatic toxicity data","volume":"20","author":"Solomon","year":"2001","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0020","doi-asserted-by":"crossref","first-page":"80","DOI":"10.1007\/s00244-009-9453-1","article-title":"Predicting the bioavailability of sediment-associated spiked compounds by using the polyoxymethylene passive sampling and Tenax\u00ae extraction methods in sediments from three river basins in Europe","volume":"58","author":"Somunen","year":"2010","journal-title":"Arch Environ Contam Toxicol"},{"key":"2025010717401785200_ieam1609-bib-0021","first-page":"1","article-title":"The University of California-Davis methodology for deriving aquatic life pesticide water quality criteria","volume":"209","author":"TenBrook","year":"2010","journal-title":"Rev Environ Contam Toxicol"},{"key":"2025010717401785200_ieam1609-bib-0010","year":"2000"},{"key":"2025010717401785200_ieam1609-bib-0011","year":"2012"},{"key":"2025010717401785200_ieam1609-bib-0022","volume-title":"The Pesticide Book","author":"Ware","year":"2004","edition":"6th Edition"},{"key":"2025010717401785200_ieam1609-bib-0023","doi-asserted-by":"crossref","first-page":"5514","DOI":"10.1021\/es900434z","article-title":"Use of engineered enzymes to identify organophosphate and pyrethroid-related toxicity in toxicity identification evaluations","volume":"43","author":"Weston","year":"2009","journal-title":"Environ Sci Tech"},{"key":"2025010717401785200_ieam1609-bib-0024","doi-asserted-by":"crossref","first-page":"1833","DOI":"10.1021\/es9035573","article-title":"Urban and agricultural sources of pyrethroid insecticides to the Sacramento-San Joaquin Delta of California","volume":"44","author":"Weston","year":"2010","journal-title":"Environ Sci Technol"},{"key":"2025010717401785200_ieam1609-bib-0025","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1897\/08-143.1","article-title":"Whole sediment toxicity identification evaluation tools for pyrethroid insecticides: III. Temperature manipulation","volume":"28","author":"Weston","year":"2009","journal-title":"Environ Toxicol Chem"},{"key":"2025010717401785200_ieam1609-bib-0026","doi-asserted-by":"crossref","first-page":"8394","DOI":"10.1021\/es071911c","article-title":"Comparison of five methods for measuring sediment toxicity of hydrophobic contaminants","volume":"41","author":"Xu","year":"2007","journal-title":"Environ Sci Technol"}],"container-title":["Integrated Environmental Assessment and Management"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fieam.1609","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/academic.oup.com\/ieam\/article-pdf\/11\/2\/319\/59414217\/ieam1609.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/ieam\/article-pdf\/11\/2\/319\/59414217\/ieam1609.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,7]],"date-time":"2025-01-07T18:24:12Z","timestamp":1736274252000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/ieam\/article\/11\/2\/319\/7732218"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,1,1]]},"references-count":26,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2015,1,1]]},"published-print":{"date-parts":[[2015,1,1]]}},"URL":"https:\/\/doi.org\/10.1002\/ieam.1609","relation":{},"ISSN":["1551-3777","1551-3793"],"issn-type":[{"value":"1551-3777","type":"print"},{"value":"1551-3793","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2015,1,1]]},"published":{"date-parts":[[2015,1,1]]},"assertion":[{"value":"2014-07-29","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2014-11-20","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2015-01-30","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}