Effect of Magnacide ® H Herbicide Residuals on Water Quality Within Wildlife Refuges of the Klamath Basin, CA

Nordone, Adrian J.; Matherly, Ron; Bonnivier, B.; Doane, Rebecca A.; Caravello, Halina E.; Paakonen, S.; Winchester, W.; Parent, Richard A.

doi:10.1007/s001289900139

Cited by 11 publications

(12 citation statements)

References 9 publications

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“…The most important variables in the dissipation of acrolein were the concentration of acrolein and the water flow. Acrolein is known to hydrolyse rapidly in water, with first‐order kinetics, resulting in the production of various short‐lived non‐toxic metabolites (Bowmer & Higgins, 1976; Nordone et al. , 1996a,b).…”

Section: Discussionmentioning

confidence: 99%

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Bentivegna¹,

Fernández²

2005

Weed Research

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Growth of the submerged weed Potamogeton pectinatus L. is a major problem in the irrigation channels located in the Lower Valley of the Colorado River (39°10¢-39°55¢S; 62°05¢-63°55¢W) in Argentina. Previous studies indicate that weed control with acrolein is effective in reducing submerged plant biomass. In this study, we evaluated the influence of some variables affecting acrolein and its dissipation in water. Three main parameters, acrolein dosage, the height of the plants and the velocity of water contributed to 80% of the reduction of the submerged weed biomass. Water flow and concentration of the chemical explained 68% of the factors influencing the dissipation of the herbicide. Water velocity, electrical conductivity, pH and the duration of application have a secondary effect in the dissipation process. The constant rate of dissipation (K) was 0.235 L h )1 (SD ±0.125), implying that the chemical will disappear from the system in <24 h. As a practical guideline for the control of mature, dense stands of P. pectinatus within the irrigation system under study, the following conditions are advisable: flow volumes of 500 L s )1 or higher, water velocity of 0.42 m s )1 or more and c. 6.5 mg L )1 concentration of acrolein for at least a 11-h period.

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Section: Discussionmentioning

confidence: 99%

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Bentivegna¹,

Fernández²

2005

Weed Research

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“…Field experiments have demonstrated that the presence of acrolein in agricultural canals is transient (Nordone et al 1996a;Nordone et al 1996b) with a half-life ranging from 2 to 10 hr. The degradation of acrolein in water is due largely to its rapid hydrolysis to 3-hydroxy-propanal and biotransformation to acrylic acid and allyl alcohol (Smith et al 1995).…”

Section: Resultsmentioning

confidence: 99%

[ 14 ]C Acrolein Accumulation and Metabolism in Leaf Lettuce

Aj¹,

Mf²,

Doane

1997

Bulletin of Environmental Contamination and Toxicology

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“…Acrolein, an aquatic herbicide, is applied as MAGNACIDE H® herbicide (Baker Performance Chemicals, Houston, TX, USA; active ingredient, 92% minimum acrolein, inhibited) directly into agricultural irrigation canals at concentrations of 1 to 15 ppm. Water in treated canals is required by the MAGNACIDE H herbicide label to be held for 6 d before being discharged into natural receiving waters, and it has been demonstrated that, when used correctly, acrolein does not adversely affect nontarget aquatic species [1].…”

Section: Introductionmentioning

confidence: 99%

“…The presence of acrolein in canals is transient, with a dissipation half‐life of approx. 7.0 h [1–41] that is both concentration and temperature dependent. Degradation of acrolein in natural water‐sediment and sterile water‐sediment aquatic conditions [5] has indicated that microbial degradation plays a significant role in the transformation of acrolein in aquatic systems, with a reduction in half‐life being associated with the presence of viable microbial populations.…”

Section: Introductionmentioning

confidence: 99%

“…These exposure concentrations were based on the results of a series of preliminary tests and were slightly less than the no‐effect concentrations. Exposure concentrations were nearly three orders of magnitude below the maximum permitted acrolein application rate and were likely more than an order of magnitude above the maximum exposures of the fish and shellfish to acrolein in fish‐bearing waters [1]. The chosen species were the bottom‐feeding channel catfish ( Ictalurus punctatus ), the predatory bluegill sunfish ( Leponomis macrochirus ), the filter‐feeding unionacean clam ( Elliptio complantata ), and the detritivore northern crayfish ( Orconectes virilis ).…”

Section: Introductionmentioning

confidence: 99%

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Metabolism of [¹⁴C]acrolein (Magnacide H® herbicide): Nature and magnitude of residues in freshwater fish and shellfish

Nordone

Dotson²,

Kovacs³

et al. 1998

Enviro Toxic and Chemistry

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Abstract-Acrolein, an aquatic herbicide, is applied as MAGNACIDE H herbicide directly into the water of irrigation canals at concentrations of 1 to 15 ppm. Two representative freshwater fish species, the bluegill sunfish (Lepomis macrochirus) and the channel catfish (Ictalurus punctatus), and two representative freshwater shellfish species, a unionacean clam (Elliptio complanata) and the northern crayfish (Orconectes virilis), were exposed separately to two applications of [ 14 C]acrolein, with 7 d between the two dosings. The nominal water concentrations were 0.02 and 0.1 ppm acrolein for fish and shellfish, respectively. Exposures were terminated 1 d after the second application. Metabolites were identified from the edible tissues of each test species; there was very little similarity in the metabolism of acrolein between them. The most notable observation was that acrolein was never detected in any of the tissues sampled. Glycidol, glycerol, 1,3-propanediol, and glyceric acid were the major metabolites found in the catfish, crayfish, bluegill, and clams, respectively. This study demonstrated that these test species, when exposed under static conditions to [ 14 C]acrolein, are able to metabolize the parent compound and its residues in their edible tissues. The metabolism of [ 14 C]acrolein is so rapid in the edible tissues of these species that neither acrolein nor its major oxidative and reductive metabolites, acrylic acid and allyl alcohol, respectively, were detected.

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Effect of Magnacide ® H Herbicide Residuals on Water Quality Within Wildlife Refuges of the Klamath Basin, CA

Cited by 11 publications

References 9 publications

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

[ 14 ]C Acrolein Accumulation and Metabolism in Leaf Lettuce

Metabolism of [¹⁴C]acrolein (Magnacide H® herbicide): Nature and magnitude of residues in freshwater fish and shellfish

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Effect of Magnacide ® H Herbicide Residuals on Water Quality Within Wildlife Refuges of the Klamath Basin, CA

Cited by 11 publications

References 9 publications

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

Factors affecting the efficacy of acrolein in irrigation channels in southern Argentina

[ 14 ]C Acrolein Accumulation and Metabolism in Leaf Lettuce

Metabolism of [14C]acrolein (Magnacide H® herbicide): Nature and magnitude of residues in freshwater fish and shellfish

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Metabolism of [¹⁴C]acrolein (Magnacide H® herbicide): Nature and magnitude of residues in freshwater fish and shellfish