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Distribution and fate of 14C-carbofuran in model rice-fish ecosystem

Distribution, metabolism and persistence of 14C-carbofuran in model rice-fish ecosystem was studied using nuclear technique. Carbofuran, when applied to the water disappeared within a short period. About 80% of the total carbofuran applied was loss within 14 days after the' application. Corresp...

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Main Authors: R. B., Mohamad, H. A., Juzu, A. R., Ismail
Format: Conference or Workshop Item
Language:English
English
Published: 1988
Online Access:http://psasir.upm.edu.my/id/eprint/18650/1/ID%2018650.pdf
http://psasir.upm.edu.my/id/eprint/18650/
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spelling my.upm.eprints.186502013-11-04T02:53:06Z http://psasir.upm.edu.my/id/eprint/18650/ Distribution and fate of 14C-carbofuran in model rice-fish ecosystem R. B., Mohamad H. A., Juzu A. R., Ismail Distribution, metabolism and persistence of 14C-carbofuran in model rice-fish ecosystem was studied using nuclear technique. Carbofuran, when applied to the water disappeared within a short period. About 80% of the total carbofuran applied was loss within 14 days after the' application. Correspondingly, an increase of about 70% of the total application was recorded in thes soil within. 21 days, with higher concentration in the upper 5 cm layer. Most residues in the soil remained bound to the soil particles, which increased over time. Extractable residues depleted with time.Build up of absorbed residues in the plant was slow, reaching maximum level of 28% of the total applied carbofumn after 28 days. In the plant, active transport to and accumulation in the aerial parts occured during the early growth period (about 28 days after transplanting), but later the chemical was accumulating in the root. Some residues were also detectable in the rice grains. Perch fish cannot willlstand direct application of carbofuran inlo the water. All the fish died wilhin 24h. Toxic metnbolilcs of 3-kelO and/or 3-hydrox)' carbofuran were detectable in the water. Only carbofuran phenol and 3-hydroxy carbofuran were found in the soil and paddy plant, respectively. 1988 Conference or Workshop Item NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/18650/1/ID%2018650.pdf R. B., Mohamad and H. A., Juzu and A. R., Ismail (1988) Distribution and fate of 14C-carbofuran in model rice-fish ecosystem. In: FAO/IAEA Research Coordination Meeting on the Use of Isotopes in Studies of Pesticide in Rice-Fish Ecosystem, 10-14 Oct 1988, China. (pp. 1-14). (Unpublished) English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Distribution, metabolism and persistence of 14C-carbofuran in model rice-fish ecosystem was studied using nuclear technique. Carbofuran, when applied to the water disappeared within a short period. About 80% of the total carbofuran applied was loss within 14 days after the' application. Correspondingly, an increase of about 70% of the total application was recorded in thes soil within. 21 days, with higher concentration in the upper 5 cm layer. Most residues in the soil remained bound to the soil particles, which increased over time. Extractable residues depleted with time.Build up of absorbed residues in the plant was slow, reaching maximum level of 28% of the total applied carbofumn after 28 days. In the plant, active transport to and accumulation in the aerial parts occured during the early growth period (about 28 days after transplanting), but later the chemical was accumulating in the root. Some residues were also detectable in the rice grains. Perch fish cannot willlstand direct application of carbofuran inlo the water. All the fish died wilhin 24h. Toxic metnbolilcs of 3-kelO and/or 3-hydrox)' carbofuran were detectable in the water. Only carbofuran phenol and 3-hydroxy carbofuran were found in the soil and paddy plant, respectively.
format Conference or Workshop Item
author R. B., Mohamad
H. A., Juzu
A. R., Ismail
spellingShingle R. B., Mohamad
H. A., Juzu
A. R., Ismail
Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
author_facet R. B., Mohamad
H. A., Juzu
A. R., Ismail
author_sort R. B., Mohamad
title Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
title_short Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
title_full Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
title_fullStr Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
title_full_unstemmed Distribution and fate of 14C-carbofuran in model rice-fish ecosystem
title_sort distribution and fate of 14c-carbofuran in model rice-fish ecosystem
publishDate 1988
url http://psasir.upm.edu.my/id/eprint/18650/1/ID%2018650.pdf
http://psasir.upm.edu.my/id/eprint/18650/
_version_ 1643826858185195520
score 13.211869

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