Ishak@ Mohd Farid, Zahira (2018) Contamination of isoprothiolane, propiconazole and pretilachlor in paddy soil and potential dermal health risk to paddy farmers in Tanjung Karang, Kuala Selangor. [Project Paper] (Submitted)
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Abstract
Introduction: Tanjung Karang, Kuala Selangor is the third largest paddy field in Peninsular Malaysia. The pesticide can give a positive impact on destroying pest in agricultural activities but it can also contribute to the adverse environmental and health consequences. Besides, the paddy farmers in Tanjung Karang, Kuala Selangor are not using proper personal protective equipment (PPE) when working in paddy field. Therefore, this would increasing their exposure to the pesticides, particularly through dermal exposure. Objective: To determine the concentration of isoprothiolane, propiconazole and pretilachlor in paddy soil and their potential dermal health risk among paddy farmers at Tanjung Karang, Kuala Selangor. Methodology: This study was conducted at Kampung Sawah Sempadan, Tanjung Karang, Kuala Selangor which consists of 24 paddy blocks (Block A to Block X). Questionnaires were distributed among 152 paddy farmers to obtain the information regarding the socio-demographic, the personal hygiene and usage of personal protective equipment and their exposure to the pesticides. 72 soil samples were randomly collected from 24 paddy blocks. The samples were extracted using dispersive solid phase extraction ( dSPE) and analysed by ultra performance liquid chromatography - tandem mass spectrometry (UPLCMS/ MS). Dermal health risk assessment of the paddy farmers was calculated using Hazard Quotient (HQ). Result and discussion: The fin dings showed that the concentration of isoprothiolane, propiconazole and pretilachlor in paddy soil samples were ranged from 0.546 mg kg- 1 to 42.917 mg kg- 1 , 0.773 mg kg- 1 to 25.502 mg kg- 1 and 0.435 mg kg- 1 to 9.942 mg kg- 1 , respectively. The HQ calculated for propiconazole was less than one for all of the paddy blocks. There were significant correlations between (i) pretilachlor and C/N ratio (r = -0.664 p = 0.007) and between (ii) pretilachlor and total organic carbon (TOC) (r = -0.677, p = 0.006). Conclusion: There was no significant non-carcinogenic dermal health risks due to occupational exposure of propiconazole in paddy soil (HQ< 1) for paddy farmers that worked in Block A to Block X. Keywords: Pesticides contamination, hazard quotient (HQ), dermal health risk assessment, ultra performance liquid chromatography - tandem mass spectrometry (UPLC-MS/MS), dispersive solid phase extraction (dSPE)
| Item Type: | Project Paper |
|---|---|
| Faculty: | Faculty of Medicine and Health Science |
| Depositing User: | Ms Norafizah Radzuan |
| Date Deposited: | 05 Nov 2024 01:03 |
| Last Modified: | 05 Nov 2024 01:03 |
| URI: | http://psaspb.upm.edu.my/id/eprint/2088 |
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