The monitoring of organophosphorus and carbamate insecticides and heavy metal contents in paddy field soils water and rice (Oryza sativa l.)

Ruengwiroon Penpuck, . and Sangdee Chanon, . and Silprasit Kun, . and Thummajitsakul Sirikul, . and Thaisa Suteema, . The monitoring of organophosphorus and carbamate insecticides and heavy metal contents in paddy field soils water and rice (Oryza sativa l.). pp. 61-77. ISSN 1511-3701

The aim of this work was to monitor organophosphorus and carbamate insecticides in paddy field soils water and rice plants by measuring anti-acetylcholinesterase activity and heavy metal contents by an atomic absorption spectrometry. The results showed that the percentages of anti-acetylcholinesterase activities were found in the order of shoot soil root grain water. Concentrations of heavy metals in all samples were found in the following order: FeMnNiPbZn particularly Fe Ni and Pb were found in concentrations exceeding their maximum permissible levels in all samples of water and rice plants. Interestingly principal component analysis confirmed positive correlations (significantly: P 0.05) between the percentages of anti-acetylcholinesterase activities and heavy metal contents between Zn and Mn contents between Zn and Pb contents between Pb and Mn contents and between Pb and Ni contents. Additionally the translocation factors (TFsoil TFroot and TFshoot) and bioaccumulation factor (BAF) above 1 of the rice plant were observed in order of ZnFeMnNi or Pb Zn or Ni Pb or Mn Fe PbZn or Mn or FeNi and ZnPbMnNiFe respectively. These data support developing a useful biomarker to monitor organophosphorus and carbamate insecticides and heavy metals and management programs in health promotion and toxic surveillance for insecticides and heavy metals in food and environments.

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Abstract

The aim of this work was to monitor organophosphorus and carbamate insecticides in paddy field soils water and rice plants by measuring anti-acetylcholinesterase activity and heavy metal contents by an atomic absorption spectrometry. The results showed that the percentages of anti-acetylcholinesterase activities were found in the order of shoot soil root grain water. Concentrations of heavy metals in all samples were found in the following order: FeMnNiPbZn particularly Fe Ni and Pb were found in concentrations exceeding their maximum permissible levels in all samples of water and rice plants. Interestingly principal component analysis confirmed positive correlations (significantly: P 0.05) between the percentages of anti-acetylcholinesterase activities and heavy metal contents between Zn and Mn contents between Zn and Pb contents between Pb and Mn contents and between Pb and Ni contents. Additionally the translocation factors (TFsoil TFroot and TFshoot) and bioaccumulation factor (BAF) above 1 of the rice plant were observed in order of ZnFeMnNi or Pb Zn or Ni Pb or Mn Fe PbZn or Mn or FeNi and ZnPbMnNiFe respectively. These data support developing a useful biomarker to monitor organophosphorus and carbamate insecticides and heavy metals and management programs in health promotion and toxic surveillance for insecticides and heavy metals in food and environments.

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Item Type:	Article
AGROVOC Term:	Oryza sativa
AGROVOC Term:	Rice fields
AGROVOC Term:	Monitoring
AGROVOC Term:	Bioaccumulation
AGROVOC Term:	Atomic absorption spectrometry
AGROVOC Term:	Paddy soil
AGROVOC Term:	Water
AGROVOC Term:	Rice
AGROVOC Term:	Plant insecticides
AGROVOC Term:	Organophosphorus compounds
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8123

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