Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China
The fungicides epoxiconazole and pyraclostrobin have been widely used to control wheat fusarium head blight. This study was designed to investigate the dissipation behaviors in different climate regions and provide data for the modification of maximum residue limits of the two fungicides. Wheat samp...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651320310745 |
| _version_ | 1818899199853330432 |
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| author | Zixi Zhao Runxia Sun Yue Su Jiye Hu Xiaolu Liu |
| author_facet | Zixi Zhao Runxia Sun Yue Su Jiye Hu Xiaolu Liu |
| author_sort | Zixi Zhao |
| collection | DOAJ |
| description | The fungicides epoxiconazole and pyraclostrobin have been widely used to control wheat fusarium head blight. This study was designed to investigate the dissipation behaviors in different climate regions and provide data for the modification of maximum residue limits of the two fungicides. Wheat samples were collected from field sites in twelve different regions, China and analyzed with an HPLC-MS/MS method for simultaneous detection of epoxiconazole and pyraclostrobin in wheat. The average recoveries of epoxiconazole and pyraclostrobin in wheat matrix were 87–112% and 85–102%, respectively, with the relative standard deviations ≤8.1%. The limits of quantification of epoxiconazole and pyraclostrobin in grain and straw were both 0.01 mg/kg. The dissipations of epoxiconazole and pyraclostrobin followed first-order kinetics, with the half-lives of 10.3 days and 7.6 days, respectively. The terminal residues of epoxiconazole and pyraclostrobin in grain were below 0.034 and 0.028 mg/kg, separately, both lower than the maximum residue limits recommended by China. Based on Chinese dietary pattern and terminal residue distributions, the risk quotients of epoxiconazole and pyraclostrobin were 13.9% and 65.9%, respectively, revealing the evaluated wheat exhibited an acceptably low dietary risk to consumers. |
| first_indexed | 2024-12-19T19:44:11Z |
| format | Article |
| id | doaj.art-07a6fc8e37e54d42b5255be22baeea7d |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-19T19:44:11Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-07a6fc8e37e54d42b5255be22baeea7d2022-12-21T20:08:11ZengElsevierEcotoxicology and Environmental Safety0147-65132021-01-01207111236Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, ChinaZixi Zhao0Runxia Sun1Yue Su2Jiye Hu3Xiaolu Liu4School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, 210044, ChinaSchool of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.The fungicides epoxiconazole and pyraclostrobin have been widely used to control wheat fusarium head blight. This study was designed to investigate the dissipation behaviors in different climate regions and provide data for the modification of maximum residue limits of the two fungicides. Wheat samples were collected from field sites in twelve different regions, China and analyzed with an HPLC-MS/MS method for simultaneous detection of epoxiconazole and pyraclostrobin in wheat. The average recoveries of epoxiconazole and pyraclostrobin in wheat matrix were 87–112% and 85–102%, respectively, with the relative standard deviations ≤8.1%. The limits of quantification of epoxiconazole and pyraclostrobin in grain and straw were both 0.01 mg/kg. The dissipations of epoxiconazole and pyraclostrobin followed first-order kinetics, with the half-lives of 10.3 days and 7.6 days, respectively. The terminal residues of epoxiconazole and pyraclostrobin in grain were below 0.034 and 0.028 mg/kg, separately, both lower than the maximum residue limits recommended by China. Based on Chinese dietary pattern and terminal residue distributions, the risk quotients of epoxiconazole and pyraclostrobin were 13.9% and 65.9%, respectively, revealing the evaluated wheat exhibited an acceptably low dietary risk to consumers.http://www.sciencedirect.com/science/article/pii/S0147651320310745EpoxiconazolePyraclostrobinWheatDissipation behaviorDietary risk assessment |
| spellingShingle | Zixi Zhao Runxia Sun Yue Su Jiye Hu Xiaolu Liu Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China Ecotoxicology and Environmental Safety Epoxiconazole Pyraclostrobin Wheat Dissipation behavior Dietary risk assessment |
| title | Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China |
| title_full | Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China |
| title_fullStr | Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China |
| title_full_unstemmed | Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China |
| title_short | Fate, residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions, China |
| title_sort | fate residues and dietary risk assessment of the fungicides epoxiconazole and pyraclostrobin in wheat in twelve different regions china |
| topic | Epoxiconazole Pyraclostrobin Wheat Dissipation behavior Dietary risk assessment |
| url | http://www.sciencedirect.com/science/article/pii/S0147651320310745 |
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