A comparative study of the persistence, movement, and metabolism of six carbon-14 insecticides in soils and plants

Fuhremann, T. W.; Lichtenstein, E. P.

doi:10.1021/jf60228a016

Cited by 58 publications

(34 citation statements)

References 10 publications

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“…But in the present investigation the half-life values for higher doses ranged between 3.5-3.7 days and 3.1-3.9 days and for lower doses between 2.8-3.4 days and 1.9-2.3 days respectively for fresh and aged seeds (Table 1). When calculated on the basis of the actual quantum of residues (jUg) the half-life values at higher doses were 11.2, 10.8 and 8.1 days for fresh and 9.1, 9.4 and 7.9 days for aged seeds in respect of (METCALF et al 1968, KNAAK et al 1970, ASHWORTH and SHEETS 1972, MEIKLE 1973, KAPOOR and KALRA 1975, FuHREMANN and LiCHTENSTEiN 1980. Though no attempt was made to identify the metabolites in the degradation process, it is presumed that similar metabolism would have taken place in the present investigation as well.…”

Section: Resultsmentioning

confidence: 99%

Studies on Seed Residues Following Carbofuran Application in Sorghum (Sorghum bicolor [L.] Moench) with Reference to Viability

Ramamoorthy¹,

Kannathasan²,

Kalavathi³

1991

J Agronomy Crop Science

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Soil application of different formulations of carbofuran at 3.0 and 1.5 g.a.i. metre row−1 did not have any impact on vigour and viability of the resultant seeds of sorghum. Fresh seeds from encecap ‘A’, encecap ‘B’ and furadan treated plots contained higher residues than the permissible limits and in artificially aged seeds the quantities were below the permissible limits. The degradation was evident with the growth and development of seedlings grown from fresh and aged seeds. Residues from lower doses dissipated faster than higher doses. The general decline in percentage germination and vigour could not be attributed to the residual toxicity but only to the ageing phenomena.

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Section: Resultsmentioning

confidence: 99%

Studies on Seed Residues Following Carbofuran Application in Sorghum (Sorghum bicolor [L.] Moench) with Reference to Viability

Ramamoorthy¹,

Kannathasan²,

Kalavathi³

1991

J Agronomy Crop Science

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“…Results of several studies where DDT accumulation has been recorded are summarised in Table 1. Residue levels in shoots and leaves are generally less than those found in roots (Fuhremann & Lichtenstein 1980;Verma & Pillai 1991b) indicating that DDT is not readily translocated in the plant. The high levels of DDT recorded in rape seed (Schlosserova 1992) possibly result from the high oil content of the seed.…”

Section: Uptake By Plantsmentioning

confidence: 98%

“…Plant uptake is affected by a number of factors including levels of soil organic matter (Beall & Nash 1969;Fuhremann & Lichtenstein 1980), species (Beall & Nash 1969;Verma & Pillai 1991b;Schlosserova 1992), soil residue level (Nash 1968;Beall & Nash 1969), and plant fat content (Newsom 1967). Results of several studies where DDT accumulation has been recorded are summarised in Table 1.…”

Section: Uptake By Plantsmentioning

confidence: 99%

DDT residues in the environment—A review with a New Zealand perspective

Boul¹

1995

New Zealand Journal of Agricultural Research

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“…11 Sorption behaviour of several classes of pesticide compounds in different soils is described in literature. 2 ' 3 ' 15 ' 19 " 23 The reported data consider various aspects of pollutant/soil interactions, from simple organic matter sorption coefficient, K om , to mobility and persistence of compounds in soil. This paper describes the sorption of four OP pesticides: demeton-S-methyl, methidathion, azinphos-methyl and phosalone, in sediments of two distant ponds adjacent to agricultural areas.…”

Section: Introductionmentioning

confidence: 99%

Sorption behaviour of some organophosphorus pesticides in natural sediments∗

Fröbe

Drevenkar

Štengl

et al. 1989

Toxicological & Environmental Chemistry

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Sorption behaviour of four organophosphorus pesticides: demeton-S-methyl, methidathion, azinphosmethyl and phosalone, in two different pond sediments is reported. The sorption coefficients K d in both sediments are found to follow the same sequence as the lipophilicity of the compounds expressed as their noctanol/water partition coefficients, K ow . The isotherms for demeton-S-methyl and methidathion are approximately linear in the concentration range studied, whereas nonlinear Freundlich isotherm with parameter 1/n significantly less than 1 better fits the experimental data for azinphos-methyl and phosalone. The sorption efficiency for all the four pesticides is higher in the sediment with a lower content of organic matter. Isotherm nonlinearities and discrepancy between K d values and the organic matter content of the sediments both indicate that a simple partition model does not offer indiscriminately an adequate visualization of the sorption behaviour. However, the sorption and partition results reported here are in a good agreement with literature data for a series of eighteen organophosphorus pesticides. This is demonstrated by testing the consistency of the results with the respective literature data in Collander equations relating in log-log linear regressions K ow and organic matter sorption coefficients, K om , to water solubilities of organophosphorus pesticides.

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A comparative study of the persistence, movement, and metabolism of six carbon-14 insecticides in soils and plants

Cited by 58 publications

References 10 publications

Studies on Seed Residues Following Carbofuran Application in Sorghum (Sorghum bicolor [L.] Moench) with Reference to Viability

Studies on Seed Residues Following Carbofuran Application in Sorghum (Sorghum bicolor [L.] Moench) with Reference to Viability

DDT residues in the environment—A review with a New Zealand perspective

Sorption behaviour of some organophosphorus pesticides in natural sediments∗

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