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2020 Journal Article Release of plastics to Australian land from biosolids end-useOkoffo, Elvis D., Tscharke, Benjamin J., O'Brien, Jake W., O'Brien, Stacey, Ribeiro, Francisca, Burrows, Stephen D., Choi, Phil M., Wang, Xianyu, Mueller, Jochen F. and Thomas, Kevin (2020). Release of plastics to Australian land from biosolids end-use. Environmental Science and Technology, 54 (23), 15132-15141. doi: 10.1021/acs.est.0c05867 |
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2020 Journal Article Response to comment on “Quantitative analysis of selected plastics in high-commercial-value Australian seafood by pyrolysis gas chromatography mass spectrometry”Ribeiro, Francisca, Okoffo, Elvis D., O’Brien, Jake W., Fraissinet-Tachet, Sarah, O’Brien, Stacey, Gallen, Michael, Samanipour, Saer, Kaserzon, Sarit, Mueller, Jochen F., Galloway, Tamara and Thomas, Kevin V. (2020). Response to comment on “Quantitative analysis of selected plastics in high-commercial-value Australian seafood by pyrolysis gas chromatography mass spectrometry”. Environmental Science and Technology, 54 (23), 15556-15557. doi: 10.1021/acs.est.0c07097 |
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2020 Journal Article Road de-icing salt: Assessment of a potential new source and pathway of microplastics particles from roadsRødland, Elisabeth S., Okoffo, Elvis D., Rauert, Cassandra, Heier, Lene S., Lind, Ole Christian, Reid, Malcolm, Thomas, Kevin V. and Meland, Sondre (2020). Road de-icing salt: Assessment of a potential new source and pathway of microplastics particles from roads. Science of the Total Environment, 738 139352, 139352. doi: 10.1016/j.scitotenv.2020.139352 |
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2020 Journal Article Correction to Quantitative Analysis of Selected Plastics in High-Commercial-Value Australian Seafood by Pyrolysis Gas Chromatography Mass SpectrometryRibeiro, Francisca, Okoffo, Elvis D., O’Brien, Jake W., Fraissinet-Tachet, Sarah, O’Brien, Stacey, Gallen, Michael, Samanipour, Saer, Kaserzon, Sarit, Mueller, Jochen F., Galloway, Tamara and Thomas, Kevin V. (2020). Correction to Quantitative Analysis of Selected Plastics in High-Commercial-Value Australian Seafood by Pyrolysis Gas Chromatography Mass Spectrometry. Environmental Science & Technology, 54 (20), 13364-13364. doi: 10.1021/acs.est.0c05885 |
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2020 Journal Article Covid-19 face masks: a potential source of microplastic fibers in the environmentFadare, Oluniyi O. and Okoffo, Elvis D. (2020). Covid-19 face masks: a potential source of microplastic fibers in the environment. Science of the Total Environment, 737 140279, 140279. doi: 10.1016/j.scitotenv.2020.140279 |
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2020 Journal Article Quantitative Analysis of Selected Plastics in High-Commercial-Value Australian Seafood by Pyrolysis Gas Chromatography Mass SpectrometryRibeiro, Francisca, Okoffo, Elvis D., O'Brien, Jake W., Fraissinet-Tachet, Sarah, O'Brien, Stacey, Gallen, Michael, Samanipour, Saer, Kaserzon, Sarit, Mueller, Jochen F., Galloway, Tamara and Thomas, Kevin V. (2020). Quantitative Analysis of Selected Plastics in High-Commercial-Value Australian Seafood by Pyrolysis Gas Chromatography Mass Spectrometry. Environmental Science & Technology, 54 (15) acs.est.0c02337, 9408-9417. doi: 10.1021/acs.est.0c02337 |
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2020 Journal Article Identification and quantification of selected plastics in biosolids by pressurized liquid extraction combined with double-shot pyrolysis gas chromatography–mass spectrometryOkoffo, Elvis D., Ribeiro, Francisca, O'Brien, Jake W., O'Brien, Stacey, Tscharke, Benjamin J., Gallen, Michael, Samanipour, Saer, Mueller, Jochen F. and Thomas, Kevin V. (2020). Identification and quantification of selected plastics in biosolids by pressurized liquid extraction combined with double-shot pyrolysis gas chromatography–mass spectrometry. Science of the Total Environment, 715 136924, 1. doi: 10.1016/j.scitotenv.2020.136924 |
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2019 Journal Article Wastewater treatment plants as a source of plastics in the environment: a review of occurrence, methods for identification, quantification and fateOkoffo, Elvis Dartey, O'Brien, Stacey, O’Brien, Jake W., Tscharke, Ben and Thomas, Kevin V. (2019). Wastewater treatment plants as a source of plastics in the environment: a review of occurrence, methods for identification, quantification and fate. Environmental Science: Water Research & Technology, 5 (11), 1908-1931. doi: 10.1039/c9ew00428a |
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2019 Conference Publication Microplastics quantification in complex environment samples using combined solvent extraction and pyrolysis gas chromatography-mass spectrometryOkoffo, Elvis Dartey, Ribeiro, Francisca, O'Brien, Stacey, O'Brien, Jake, Gallen, Michael and Thomas, Kevin (2019). Microplastics quantification in complex environment samples using combined solvent extraction and pyrolysis gas chromatography-mass spectrometry. Fall National Meeting and Exposition of the American-Chemical-Society (ACS), San Diego, CA United States, 25-29 August 2019. Washington, DC United States: American Chemical Society. |
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2017 Journal Article What are the drivers of cocoa farmers’ choice of climate change adaptation strategies in Ghana?Denkyirah, Elisha Kwaku, Okoffo, Elvis Dartey, Adu, Derick Taylor and Bosompem, Ohene Asa (2017). What are the drivers of cocoa farmers’ choice of climate change adaptation strategies in Ghana?. Cogent Food & Agriculture, 3 (1) 1334296, 1334296. doi: 10.1080/23311932.2017.1334296 |
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2017 Journal Article Contamination levels of organophosphorus and synthetic pyrethroid pesticides in cocoa beans from GhanaOkoffo, Elvis D., Fosu-Mensah, Benedicta Y. and Gordon, Christopher (2017). Contamination levels of organophosphorus and synthetic pyrethroid pesticides in cocoa beans from Ghana. Food Control, 73, 1371-1378. doi: 10.1016/j.foodcont.2016.11.004 |
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2016 Journal Article Modeling Ghanaian cocoa farmers' decision to use pesticide and frequency of application: the case of Brong Ahafo RegionDenkyirah, Elisha Kwaku, Okoffo, Elvis Dartey, Adu, Derick Taylor, Aziz, Ahmed Abdul, Ofori, Amoako and Denkyirah, Elijah Kofi (2016). Modeling Ghanaian cocoa farmers' decision to use pesticide and frequency of application: the case of Brong Ahafo Region. Springerplus, 5 (1) 1113. doi: 10.1186/s40064-016-2779-z |
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2016 Journal Article A double-hurdle model estimation of cocoa farmers' willingness to pay for crop insurance in GhanaOkoffo, Elvis Dartey, Denkyirah, Elisha Kwaku, Adu, Derick Taylor and Fosu-Mensah, Benedicta Yayra (2016). A double-hurdle model estimation of cocoa farmers' willingness to pay for crop insurance in Ghana. SpringerPlus, 5 (1) 873. doi: 10.1186/s40064-016-2561-2 |
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2016 Journal Article Assessment of organochlorine pesticide residues in soils and drinking water sources from cocoa farms in GhanaFosu-Mensah, Benedicta Y., Okoffo, Elvis D., Darko, Godfred and Gordon, Christopher (2016). Assessment of organochlorine pesticide residues in soils and drinking water sources from cocoa farms in Ghana. Springerplus, 5 (1) 869. doi: 10.1186/s40064-016-2352-9 |
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2016 Journal Article Pesticides exposure and the use of personal protective equipment by cocoa farmers in GhanaOkoffo, Elvis Dartey, Mensah, Michael and Fosu-Mensah, Benedicta Yayra (2016). Pesticides exposure and the use of personal protective equipment by cocoa farmers in Ghana. Environmental Systems Research, 5 (1) 17, 17. doi: 10.1186/s40068-016-0068-z |
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2016 Journal Article Synthetic pyrethroids pesticide residues in soils and drinking water sources from cocoa farms in GhanaFosu-Mensah, Benedicta Y., Okoffo, Elvis D. and Mensah, Michael (2016). Synthetic pyrethroids pesticide residues in soils and drinking water sources from cocoa farms in Ghana. Environment and Pollution, 5 (1), 60-72. doi: 10.5539/ep.v5n1p60 |
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2016 Journal Article Access to credit and constraint analysis: the case of smallholder rice farmers in GhanaDenkyirah, Elisha Kwaku, Aziz, Ahmed Abdul, Denkyirah, Elijah Kofi, Nketiah, Ofori Obeng and Okoffo, Elvis Dartey (2016). Access to credit and constraint analysis: the case of smallholder rice farmers in Ghana. Journal of Agricultural Studies, 4 (2), 53-72. doi: 10.5296/jas.v4i2.9167 |
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2016 Journal Article Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in GhanaFosu-Mensah, Benedicta Yayra, Okoffo, Elvis Dartey, Darko, Godfred and Gordon, Christopher (2016). Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana. Environmental Systems Research, 5 (1) 10. doi: 10.1186/s40068-016-0063-4 |
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2016 Journal Article Analysis of the factors influencing smallholder rice farmers’ access to credit in the upper east region of GhanaDenkyirah, Elisha, Adu, Derick, Aziz, Ahmed, Denkyirah, Elijah and Okoffo, Elvis (2016). Analysis of the factors influencing smallholder rice farmers’ access to credit in the upper east region of Ghana. Asian Journal of Agricultural Extension, Economics & Sociology, 10 (4), 1-11. doi: 10.9734/ajaees/2016/24768 |
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2016 Journal Article Persistent organochlorine pesticide residues in cocoa beans from Ghana, a concern for public healthOkoffo, Elvis D., Fosu-Mensah, Benedicta Y. and Gordon, Christopher (2016). Persistent organochlorine pesticide residues in cocoa beans from Ghana, a concern for public health. International Journal of Food Contamination, 3 (1) 5. doi: 10.1186/s40550-016-0028-4 |
