Manmade organic compounds in the surface waters of the United States; a review of current understanding

Smith, James A.; Witkowski, Patrick J.; Fusillo, Thomas V.

doi:10.3133/cir1007

Cited by 84 publications

(52 citation statements)

References 382 publications

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“…In headwater streams where degradation of stream-water quality is minimal, tissue of fish, primarily suckers, from four of eight sites contained small concentrations of DDT and its breakdown products. Although no obvious sources exist for DDT in headwater areas of the upper Snake River Basin, other studies in the Nation also have documented the presence of DDT in fish tissue and bed sediments in pristine watersheds [25]. Streams draining areas influenced by agricultural and industrial activities contained the largest number of organochlorine compounds and SVOCs and in the largest concentrations [10].…”

Section: Bed Sediment Fish Tissuementioning

confidence: 99%

Water quality in the upper Snake River basin, Idaho and Wyoming, 1992-95

Clark¹,

Maret²,

Rupert³

et al. 1998

Circular

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Section: Bed Sediment Fish Tissuementioning

confidence: 99%

Water quality in the upper Snake River basin, Idaho and Wyoming, 1992-95

Clark¹,

Maret²,

Rupert³

et al. 1998

Circular

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“…PCBs have been used as plasticizers, as hydraulic lubricants in heattransfer systems, and as dielectric fluids in electrical capacitors and transformers [40]. Dioxins and furans were produced inadvertently during Electrofishing for carp on Lake Mead, May 1995.…”

Section: Bottom Sediment Was Enriched With Trace Elements Downstream mentioning

confidence: 99%

“…8B). PAHs can be produced by human activities and natural processes, including incineration of wastes or forest fires [40]. Phthalate esters are used as plasticizers in manufacturing processes, and phenols are used in the production of pesticides, pharmaceuticals, dyes, plastics, and explosives [40].…”

Section: Bottom Sediment Was Enriched With Trace Elements Downstream mentioning

confidence: 99%

“…the manufacture of pesticides and PCBs; they are commonly found in effluent from sewage-treatment plants [40].…”

Section: Major Issues and Findings Urban Activities Have Been Sourcesmentioning

confidence: 99%

“…PAHs can be produced by human activities and natural processes, including incineration of wastes or forest fires [40]. Phthalate esters are used as plasticizers in manufacturing processes, and phenols are used in the production of pesticides, pharmaceuticals, dyes, plastics, and explosives [40]. Only 9 organic compounds were detected in Las Vegas Bay (site 7), the lowest number detected in the Las Vegas Valley area, but 16 compounds were detected at site 6, upstream from Las Vegas Bay.…”

Section: Bottom Sediment Was Enriched With Trace Elements Downstream mentioning

confidence: 99%

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Water quality in the Las Vegas Valley area and the Carson and Truckee River basins, Nevada and California, 1992-96

Bevans¹,

Lico²,

Lawrence³

1998

Circular

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Bioaccumulation and Excretion of Enantiomers of Myclobutanil in Tenebrio molitor Larvae Through Dietary Exposure

Liu

Gao

et al. 2013

Chirality

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The bioaccumulation and excretion of enantiomers of myclobutanil in Tenebrio molitor larvae through dietary exposure under laboratory conditions were investigated using high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) based on a ChiralcelOD-3R [cellulosetris-tris-(3, 5-dichlorophenyl-carbamate)] column. The wheat bran fed to Tenebrio molitor larvae was spiked with racemic myclobutanil at two dose levels of 20 mg/kg and 2 mg/kg (dry weight). The results showed that there was a significant trend of enantioselective bioaccumulation in the larvae with a preferential accumulation of (-)-myclobutanil in 20 mg/kg dose exposure, but it was not obviously observed in the 2 mg/kg dose group. A kinetic model considering enantiomerization between the two enantiomers based on first-order reactions was built and the rate constants were estimated to discuss the kinetic reason for the different concentrations of individual enantiomers in the larvae. The approximations implied an inversion between the two enantiomers with a relatively higher rate of the inversion from (-)-myclobutanil to (+)-myclobutanil. Meanwhile, analysis of data of excretion samples suggested the active excretion is probably an important pathway for the insect to eliminate myclobutanil rapidly with nonenantioselectivity as a passive transport process, which was consistent with the low accumulation efficiency of myclobutanil measured by BAF (bioaccumulation factor).

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Manmade organic compounds in the surface waters of the United States; a review of current understanding

Cited by 84 publications

References 382 publications

Water quality in the upper Snake River basin, Idaho and Wyoming, 1992-95

Water quality in the upper Snake River basin, Idaho and Wyoming, 1992-95

Water quality in the Las Vegas Valley area and the Carson and Truckee River basins, Nevada and California, 1992-96

Bioaccumulation and Excretion of Enantiomers of Myclobutanil in Tenebrio molitor Larvae Through Dietary Exposure

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