Occurrence of active and inactive herbicide ingredients at selected sites in Iowa

Wang, Wuncheng; Liszewski, M.J.; Buchmiller, Robert C.; Cherryholmes, Keith

doi:10.1007/bf00482591

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…In soil, alachlor is primarily transformed into its metabolites by biodegradation, while in water both photolysis and biodegradation are important in the loss of alachlor. Elevated concentrations of these herbicides and their degradation products have been detected in surface and groundwater (Nielsen and Lee, 1987;Wang et al, 1995). In groundwater, the concentration of the degradation product 2,6-diethylaniline can be twofold higher the parent compound (Potter and Carpenter, 1995).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the potential toxicity of herbicides and their degradation products to nontarget cells using two microorganisms, the bacteria Vibrio fischeri and the ciliate Tetrahymena pyriformis

Bonnet¹,

Bonnemoy

Dusser³

et al. 2007

Environmental Toxicology

107

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ABSTRACT:The potential toxicity of several herbicides-alachlor, diuron and its photo and biotransformation products, glyphosate and its metabolite aminomethyl phosphonic acid (AMPA)-to nontarget cells was assessed using two microorganisms frequently used in ecotoxicology, Vibrio fischeri and Tetrahymena pyriformis. Toxicity assays involved the Microtox 1 test, the T. pyriformis population growth impairment test employing three different processes (flasks, tubes, microplates), and the T. pyriformis nonspecific esterase activities test. Several IC 50 or EC 50 values are reported for each molecule. Alachlor exerted a toxic effect on the two nontarget cells used. The results for diuron and its photo and biotransformation products indicated that most of the metabolites presented nontarget toxicity higher than that of diuron. Glyphosate and AMPA had a less negative effect on T. pyriformis than on V. fischeri. Nevertheless, in all cases, glyphosate was found to be more toxic than AMPA. Comparison analysis of the sensitivity of the different tests showed that, in general, tests using the eukaryotic cell (T. pyriformis) were more sensitive than test using the prokaryotic cell (V. fischeri), and that a population growth criterion is more sensitive than an enzymatic criterion. The three different processes that could be used to evaluate effects on population growth rate were equally sensitive for the herbicides tested. A significant correlation between toxicity data and the hydrophobicity of the chemicals could only be established with the growth population test. This study demonstrates that it is essential to assess the toxicity of the metabolites formed to complete a more comprehensive study of the environmental impact of a polluting agent. # 2007 Wiley Periodicals, Inc. Environ Toxicol 22: 78-91, 2007.

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Section: Introductionmentioning

confidence: 99%

Assessment of the potential toxicity of herbicides and their degradation products to nontarget cells using two microorganisms, the bacteria Vibrio fischeri and the ciliate Tetrahymena pyriformis

Bonnet¹,

Bonnemoy

Dusser³

et al. 2007

Environmental Toxicology

107

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“…Seventeen out of 338 water samples collected from four sites in Iowa using drain tiles, observations wells, or lysimeters contained xylene with a mean concentration of 3.0 μg/L (ppb) and a maximum concentration of 5 μg/L (ppb) (Wang et al 1995). Xylenes were detected above a minimum detection limit of 0.2 μg/L (ppb) in approximately 15% of groundwater samples collected from 30 wells located throughout the Denver, Colorado area with a maximum concentration of 33 μg/L (ppb) (Bruce and McMahon 1996) Concentrations of o-xylene and the combination of mand p-xylene in Antarctic pack ice located at the coast of the Ross Sea range from 10 to 20 ng/L (ppt) and from 29 to 54 ng/L (ppt), respectively (Desideri et al 1998).…”

Section: Potential For Human Exposurementioning

confidence: 99%

Xylene Sensor Using Cr-doped Co3O4 Nanoparticles Prepared by Flame Spray Pyrolysis

Jeong¹,

Jo²,

Kang³

et al. 2020

KSS

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This toxicological profile is prepared in accordance with guidelines developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987. Each profile will be revised and republished as necessary.The ATSDR toxicological profile succinctly characterizes the toxicologic and adverse health effects information for the hazardous substance described therein. Each peer-reviewed profile identifies and reviews the key literature that describes a hazardous substance's toxicologic properties. Other pertinent literature is also presented, but is described in less detail than the key studies. The profile is not intended to be an exhaustive document; however, more comprehensive sources of specialty information are referenced.vii XYLENE QUICK REFERENCE FOR HEALTH CARE PROVIDERSToxicological Profiles are a unique compilation of toxicological information on a given hazardous substance. Each profile reflects a comprehensive and extensive evaluation, summary, and interpretation of available toxicologic and epidemiologic information on a substance. Health care providers treating patients potentially exposed to hazardous substances will find the following information helpful for fast answers to often-asked questions.

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“…The identities of inert ingredients contained in commercial solutions are confidential, which makes it challenging to understand how they affect biodiversity and the environment (European Commission, 2009). Nevertheless, volatile organic compounds such as xylene, toluene, and acetone have been found in the environment (Wang et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Experimental Ecotoxicology Procedures Interfere with Honey Bee Life History

Desclos le Peley,

Grateau,

Moreau‐Vauzelle

et al. 2024

Enviro Toxic and Chemistry

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Apis mellifera was used as a model species for ecotoxicological testing. In the present study, we tested the effects of acetone (0.1% in feed), a solvent commonly used to dissolve pesticides, on bees exposed at different developmental stages (larval and/or adult). Moreover, we explored the potential effect of in vitro larval rearing, a commonly used technique for accurately monitoring worker exposure at the larval stage, by combining acetone exposure and treatment conditions (in vitro larval rearing vs. in vivo larval rearing). We then analyzed the life‐history traits of the experimental bees using radio frequency identification technology over three sessions (May, June, and August) to assess the potential seasonal dependence of the solvent effects. Our results highlight the substantial influence of in vitro larval rearing on the life cycle of bees, with a 47.7% decrease in life span, a decrease of 0.9 days in the age at first exit, an increase of 57.3% in the loss rate at first exit, and a decrease of 40.6% in foraging tenure. We did not observe any effect of exposure to acetone at the larval stage on the capacities of bees reared in vitro. Conversely, acetone exposure at the adult stage reduced the bee life span by 21.8% to 60%, decreased the age at first exit by 1.12 to 4.34 days, and reduced the foraging tenure by 30% to 37.7%. Interestingly, we found a significant effect of season on acetone exposure, suggesting that interference with the life‐history traits of honey bees is dependent on season. These findings suggest improved integration of long‐term monitoring for assessing sublethal responses in bees following exposure to chemicals during both the larval and adult stages. Environ Toxicol Chem 2024;00:1–12. © 2024 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

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Occurrence of active and inactive herbicide ingredients at selected sites in Iowa

Cited by 6 publications

References 9 publications

Assessment of the potential toxicity of herbicides and their degradation products to nontarget cells using two microorganisms, the bacteria Vibrio fischeri and the ciliate Tetrahymena pyriformis

Assessment of the potential toxicity of herbicides and their degradation products to nontarget cells using two microorganisms, the bacteria Vibrio fischeri and the ciliate Tetrahymena pyriformis

Xylene Sensor Using Cr-doped Co3O4 Nanoparticles Prepared by Flame Spray Pyrolysis

Experimental Ecotoxicology Procedures Interfere with Honey Bee Life History

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