Pesticide concentrations in water and in suspended and bottom sediments in the New and Alamo rivers, Salton Sea Watershed, California, April 2003

LeBlanc, Lawrence A.; Orlando, James L.; Kuivila, Kathryn M.

doi:10.3133/ds104

Cited by 15 publications

(12 citation statements)

References 7 publications

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“…Detailed methodology for the extraction of pyrethroid insecticides from suspended sediments is given by Smalling and Kuivila [13], based on methods described by Smalling et al [14] and LeBlanc et al [12].…”

Section: Methodsmentioning

confidence: 99%

Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USA

Domagalski

Weston

Zhang

et al. 2010

Enviro Toxic and Chemistry

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Pyrethroid insecticide use in California, USA, is growing, and there is a need to understand the fate of these compounds in the environment. Concentrations and toxicity were assessed in streambed sediment of the San Joaquin Valley of California, one of the most productive agricultural regions of the United States. Concentrations were also measured in the suspended sediment associated with irrigation or storm-water runoff, and mass loads during storms were calculated. Western valley streambed sediments were frequently toxic to the amphipod, Hyalella azteca, with most of the toxicity attributable to bifenthrin and cyhalothrin. Up to 100% mortality was observed in some locations with concentrations of some pyrethroids up to 20 ng/g. The western San Joaquin Valley streams are mostly small watersheds with clay soils, and sediment-laden irrigation runoff transports pyrethroid insecticides throughout the growing season. In contrast, eastern tributaries and the San Joaquin River had low bed sediment concentrations (<1 ng/g) and little or no toxicity because of the preponderance of sandy soils and sediments. Bifenthrin, cyhalothrin, and permethrin were the most frequently detected pyrethroids in irrigation and storm water runoff. Esfenvalerate, fenpropathrin, and resmethrin were also detected. All sampled streams contributed to the insecticide load of the San Joaquin River during storms, but some compounds detected in the smaller creeks were not detected in the San Joaquin River. The two smallest streams, Ingram and Hospital Creeks, which had high sediment toxicity during the irrigation season, accounted for less than 5% of the total discharge of the San Joaquin River during storm conditions, and as a result their contribution to the pyrethroid mass load of the larger river was minimal.

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Section: Methodsmentioning

confidence: 99%

Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USA

Domagalski

Weston

Zhang

et al. 2010

Enviro Toxic and Chemistry

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“…Pollutants such as nutrients, pesticides [23], trace metals [3,6,37,52,53], polycyclic aromatic hydrocarbons [54], polychlorinated biphenyls [4], radionuclides [13] and a wide range of other industrial and agricultural chemicals may bind with suspended solids and settle in bottom sediments where they may become concentrated. The major part (about 90%) of the input of Cd to the Baltic proper is deposited in the sediments [5].…”

Section: Introductionmentioning

confidence: 99%

Distribution of trace elements and radionuclides in the Curonian Lagoon and the Baltic Sea

Remeikaitė-Nikienė

Lujaniené

Garnaga³

et al. 2012

2012 IEEE/OES Baltic International Symposium (BALTIC)

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This study presents the distribution of trace elements (Hg, Cd, Pb, Cr, As, Cu, Ni, Zn, Co, V, Al, Li), organic carbon, δ 13 C org and radionuclides ( 90 Sr, 137 Cs, 239,240 Pu, 241 Am) in the Lithuanian part of the Baltic Sea and the Curonian Lagoon. Particulate matter (PM) and bottom sediment samples were collected during the sampling campaigns in the frame of the State monitoring and during several other investigations over the period of 1997-2011. The study area is characterized by variable loading with particulate matter. Averaged concentrations of the particulate matter in the water of the Curonian Lagoon area tended to be approximately 3 times higher in comparison with those measured in the Baltic Sea. Results showed a strong relation between metals and organic carbon in particulate matter (r=0.69-0.98, p<0.05). The correlation between metals and organic carbon in sediments was not so strong and varied in the range of 0.45-0.84. It was found out that the highest concentrations of trace elements in the Baltic Sea accumulated in the deepest stations of R7, 12A, 46 with the fine-grained, organic-rich sediments. Pollution was strongly pronounced in the Curonian Lagoon (including Klaipeda Strait area), elevated concentrations of metals were also measured in sediments of the plume of the Lagoon water, dumping of dredged material areas and in the aleurite sediments in the Baltic Sea. Higher level of elements accumulated in the surface sediments (0-3 cm), the difference between core layers was more evident at the deepest stations. According to the results, higher concentrations of radionuclides accumulated in PM and sediments as compared to marine water. The correlation of 137 Cs, 239,240 Pu and 241 Am with total organic carbon in bottom sediments was found to be 0.75-0.98. δ 13 C org in particulate matter, surface bottom sediments and humic substances of the Curonian Lagoon and the Baltic Sea ranged from -22.3 ‰ to -31.8 ‰. δ 13 C org values in the bottom sediment samples well correlated with δ 13 C org values in PM and humic acid samples.

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“…In California (USA), for example, commercial pyrethroid use (excluding retail sales) in 2005 totaled 143,000 kg in agriculture and 325,000 kg for nonagricultural applications, which consist primarily of pest control around buildings and landscape maintenance (http://www.cdpr.ca.gov/docs/pur/purmain/htm). As a result of their ubiquitous use, pyrethroid residues have been detected in sediments from water bodies ranging from small agricultural drains to major rivers [1–3], with the vast majority of available data coming from California. These residues have reached acutely toxic thresholds for the amphipod Hyalella azteca in approximately 20% of the samples collected throughout California agricultural regions [2] and with even greater frequency in urban creeks [4].…”

Section: Introductionmentioning

confidence: 99%

Whole‐sediment toxicity identification evaluation tools for pyrethroid insecticides: I. Piperonyl butoxide addition

Amweg

Weston

2007

Enviro Toxic and Chemistry

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Piperonyl butoxide (PBO) is a synergist used in some pyrethroid and pyrethrin pesticide products and has been used in toxicity identification evaluations (TIEs) of water samples to indicate organophosphate or pyrethroid-related toxicity. Methods were developed and validated for use of PBO as a TIE tool in whole-sediment testing to help establish if pyrethroids are the cause of toxicity observed in field-collected sediments. Pyrethroid toxicity was increased slightly more than twofold in 10-d sediment toxicity tests with Hyalella azteca exposed to 25 microg/L of PBO in the overlying water. This concentration was found to be effective for sediment TIE use, but it is well below that used in previous water and pore-water TIEs with PBO. The effect of PBO on the toxicity of several nonpyrethroids also was tested. Toxicity of the organophosphate chlorpyrifos was reduced by PBO, and the compound had no effect on toxicity of cadmium, DDT, or fluoranthene. Mixtures of the pyrethroid bifenthrin and chlorpyrifos were tested to determine the ability of PBO addition to identify pyrethroid toxicity when organophosphates were present in a sample. The PBO-induced increase in pyrethroid toxicity was not seen when chlorpyrifos was present at or above equitoxic concentrations with the pyrethroid. In the vast majority of field samples, however, the presence of chlorpyrifos does not interfere with use of PBO to identify pyrethroid toxicity. Eleven field sediments or soils containing pyrethroids and/or chlorpyrifos were used to validate the method. Characterization of the causative agent as determined by PBO addition was consistent with confirmation by chemical analysis and comparison to known toxicity thresholds in 10 of the 11 sediments.

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Pesticide concentrations in water and in suspended and bottom sediments in the New and Alamo rivers, Salton Sea Watershed, California, April 2003

Cited by 15 publications

References 7 publications

Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USA

Pyrethroid insecticide concentrations and toxicity in streambed sediments and loads in surface waters of the San Joaquin Valley, California, USA

Distribution of trace elements and radionuclides in the Curonian Lagoon and the Baltic Sea

Whole‐sediment toxicity identification evaluation tools for pyrethroid insecticides: I. Piperonyl butoxide addition

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