dc.contributor.author | Chowdhury, Imtiaz Faruk | |
dc.contributor.author | Rohan, Maheswaran | |
dc.contributor.author | Stodart, Benjamin J | |
dc.contributor.author | Chen, Chengrong | |
dc.contributor.author | Wu, Hanwen | |
dc.contributor.author | Doran, Gregory S | |
dc.date.accessioned | 2021-02-26T04:20:42Z | |
dc.date.available | 2021-02-26T04:20:42Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0269-7491 | |
dc.identifier.doi | 10.1016/j.envpol.2021.116687 | |
dc.identifier.uri | http://hdl.handle.net/10072/402652 | |
dc.description.abstract | Dissipation kinetics of atrazine and trifluralin in a clay loam soil was investigated in a laboratory incubation experiment under different temperature and moisture conditions. The soil was spiked with diluted atrazine and trifluralin concentrations at 4.50 and 4.25 mg/kg soil, respectively, the moisture content adjusted to 40, 70, and 100% of field capacity (FC) and then incubated in three climatic chambers at 10, 20, and 30 °C. For each of the herbicides, soil samples were collected at 0, 7, 21, 42, 70, and 105 days and analysed by Gas Chromatography-Electron Capture Detector (GC-ECD). A stochastic gamma model was used to model the dissipation of herbicides from the clay loam soil by incorporating environmental factors as covariates to determine half-life and days to complete dissipation. Results showed that temperature played a greater role on atrazine persistence than soil moisture; while the interaction effect of temperature and moisture was significant on the persistence of trifluralin over time. Atrazine dissipated more rapidly at 30 °C compared to 10 and 20 °C, with a half-life of 7.50 days and 326.23 days to reach complete dissipation. Rapid loss of trifluralin was observed at 70% moisture content when incubated at 30 °C, with a half-life of 5.80 days and 182.01 days to complete dissipation. It was observed that the half-life of both herbicides tended to double with every 10 °C decreases of temperature over the range tested. The model indicated that both atrazine and trifluralin have the potential to persist in clay loam soil for several years at temperature ≤20 °C; which could potentially affect following crops in rotation. | |
dc.description.peerreviewed | Yes | |
dc.language | eng | |
dc.publisher | Elsevier BV | |
dc.relation.ispartofpagefrom | 116687 | |
dc.relation.ispartofjournal | Environmental Pollution | |
dc.relation.ispartofvolume | 276 | |
dc.subject.fieldofresearch | Soil sciences | |
dc.subject.fieldofresearch | Pollution and contamination | |
dc.subject.fieldofresearch | Chemical sciences | |
dc.subject.fieldofresearchcode | 4106 | |
dc.subject.fieldofresearchcode | 4105 | |
dc.subject.fieldofresearchcode | 34 | |
dc.subject.keywords | Complete dissipation | |
dc.subject.keywords | Half-life | |
dc.subject.keywords | Persistence | |
dc.subject.keywords | Residues | |
dc.title | Persistence of atrazine and trifluralin in a clay loam soil undergoing different temperature and moisture conditions | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Chowdhury, IF; Rohan, M; Stodart, BJ; Chen, C; Wu, H; Doran, GS, Persistence of atrazine and trifluralin in a clay loam soil undergoing different temperature and moisture conditions, Environmental Pollution, 2021, 276, pp. 116687 | |
dcterms.dateAccepted | 2021-02-04 | |
dc.date.updated | 2021-02-26T04:14:42Z | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Chen, Chengrong | |