Dr. Daniel J. Ashworth

Department of Environmental Sciences

University of California, USA

Associate Project Scientist

Email: daniel.ashworth@ucr.edu

Qualifications

2001  Ph.D., University of Reading, UK

1996  M.S., University of London, UK

1995  B.S., University of Plymouth, UK

Publications (Selected)

Books, Book Chapters, Dissertation

1. Ashworth, D. J. and Shaw, G. 2010. Chlorine. In: Atwood, D. (Ed) Encyclopedia of Inorganic Chemistry: Radionuclides in the Environment. John Wiley & Sons Ltd, Chichester.
2. Shaw, G. and Ashworth, D. J. 2010. Selenium. In: Atwood, D. (Ed) Encyclopedia of Inorganic Chemistry: Radionuclides in the Environment. John Wiley & Sons Ltd, Chichester.
3. Ashworth, D. J. and Yates, S.R. 2010. Methyl Iodide. In: Krieger, R. (Ed) 3rdEdition of the Hayes’ Handbook of Pesticide Toxicology. Academic Press, San Diego.
4. Ashworth, D. J. 2009. Transfers of iodine in the soil-plant-air system. In: Preedy, V. (Ed), The Comprehensive Handbook on Iodine. Elsevier Academic Press, London.
5. Wheater, H. S., Bell, J. N. B., Butler, A. P., Jackson, B. M., Ciciani, L., Ashworth, D. J. and Shaw, G. 2007. Biosphere Implications of Deep Disposal of Nuclear Waste: the Upwards Migration of Radionuclides in Vegetated Soils. Imperial College Press, London.

Journals

1. Ramos P, Ashworth DJ. (2024) Per- and poly-fluoroalkyl substances in agricultural contexts and mitigation of their impacts using biochar: A review. Science of the Total Environment, 927:172275. https://doi.org/10.1016/j.scitotenv.2024.172275
2. Phan D, Bhattacharjee AS, Hanan D, Park S., Herrera D, Ashworth DJ, Schmidt M, Men Y, Ferreira JFS, Ibekwe AM. (2024) Dissemination of antimicrobial resistance in agricultural ecosystems following irrigation with treated municipal wastewater. Science of the Total Environment, 934:173288. https://doi.org/10.1016/j.scitotenv.2024.173288
3. Schmidt MP, Ashworth DJ, Ibekwe AM. (2024) Cephalexin interaction with biosolids-derived dissolved organic matter: binding mechanism and implications for adsorption by biochar and clay. Environmental Science: Water Research and Technology, 10: 949. https://doi.org/10.1039/D3EW00590A
4. Bhattacharjee AS, Phan D, Zheng C, Ashworth DJ, Schmidt M, Men Y, Ferreira JFS, Muir G, Hasan NA, Ibekwe AM. (2024). Dissemination of antibiotic resistance genes through soil-plant-earthworm continuum in the food production environment. Environment International, 183, 108374. https://doi.org/10.1016/j.envint.2023.108374
5. Ashworth DJ, Schmidt MP, Ibekwe AM. (2023) Performance of acid- and base-modified biochars for the removal of antibiotics from water under dynamic conditions. Journal of Environmental Chemical Engineering, 11, 111616. https://doi.org/10.1016/j.jece.2023.111616
6. Ibekwe AM, Bhattacharjee AS, Phan D, Ashworth DJ, Schmidt MP, Murinda S, Obayiuwana A, Murry MA, Schwartz G, Lundquist T, Ma J, Karathia H, Fanelli B, Hasan NA, Yang CH. (2023) Potential reservoirs of antimicrobial resistance in livestock waste and treated wastewater that can be disseminated to agricultural land. Science of the Total Environment, 872, 162194. https://doi.org/10.1016/j.scitotenv.2023.162194
7. Schmidt MP, Ashworth DJ, Celis N, Ibekwe AM. (2023) Optimizing date palm leaf and pistachio shell biochar properties for antibiotic adsorption by varying pyrolysis temperature. Bioresource Technology Reports, 21, 101325. https://doi.org/10.1016/j.biteb.2022.101325
8. Ashworth DJ, Ibekwe AM, Men Y, Ferreira JFS. (2023) Dissemination of antibiotics through the wastewater-soil-plant-earthworm continuum. Science of the Total Environment, 858,159841. https://doi.org/10.1016/j.scitotenv.2022.159841
9. Ashworth DJ, Ibekwe AM. (2020) System of multi-layered environmental media for the removal of antibiotics from wastewater. Journal of Environmental Chemical Engineering, 8, 104206. https://doi.org/10.1016/j.jece.2020.104206
10. Ashworth, D. J., Luo, L. and Yates, S. R. 2013. Pesticide emissions – fate and predictability.Outlooks on Pesticide Management, 24, 4-7
11. Ashworth, D. J., Luo, L., Xuan, R. and Yates, S. R. 2012. Phase partitioning, retention kinetics and leaching of fumigant methyl iodide in agricultural soil.Science of the Total Environment,432, 122-127.
12. Ashworth, D. J., Luo, L., Xuan, R. and Yates, S. R. 2011. Irrigation, organic matter addition, and tarping as methods of reducing emissions of methyl iodide from agricultural soils.Environmental Science and Technology, 45, 1384-1390.
13. Ashworth, D. J., Luo, L., Xuan, R. and Yates, S. R. 2010. 1,3-dichloropropene and chloropicrin emissions from soil following simulated drip irrigation to raised beds under plastic films.Environmental Science and Technology,44, 5793-5798.
14. Ashworth, D. J., Ernst, F., Xuan, R. and Yates, S. R. 2009. Laboratory assessment of emission reduction strategies for the agricultural fumigants 1,3-dichloropropene and chloropicrin.Environmental Science and Technology, 43, 5073-5078.
15. Ashworth, D. J., Ernst, F. F. and Yates, S. R. 2008. Soil chamber method for determination of drip-applied fumigant behavior in bed-furrow agriculture: application to chloropicrin.Environmental Science and Technology, 42, 4434-4439.
16. Ashworth, D. J., Zheng, W. and Yates, S. R. 2008. Determining breakthrough of the soil fumigant chloropicrin from 120 mg XAD-4 sorbent tubes.Atmospheric Environment, 42, 5483-5488.
17. Ashworth, D. J., Moore, J. and Shaw, G. 2008. Effects of soil type, moisture content, redox potential and methyl bromide fumigation on in-situKdvalues for radio-selenium in soil.Journal of Environmental Radioactivity, 99, 1136-1142.
18. Ashworth, D. J. and Alloway, B. J. 2008. Effects of the manipulation of organic matter solubility on the solubility of heavy metals in sewage sludge-amended soil.Communications in Soil Science and Plant Analysis,39, 538-550.
19. Ashworth, D. J. and Yates, S. R. 2007. Surface irrigation reduces the emission of volatile 1,3-dichloropropene from agricultural soils. Environmental Science and Technology, 41, 2231-2236.
20. Ashworth, D. J. and Alloway, B. J. 2007. Complexation of copper by sewage sludge-derived dissolved organic matter: effects on soil sorption behavior and plant uptake.Water, Air and Soil Pollution,182, 187-196.
21. Ashworth, D. J. and Shaw, G. 2006. Effects of moisture content and redox potential on in-situ Kd values for radioiodine in soil.Science of the Total Environment, 359, 244-254.
22. Ashworth, D. J. and Shaw, G. 2006. A comparison of the soil migration and plant uptake of36Cl and125I under conditions of fixed and fluctuating water tables.Journal of Environmental Radioactivity,89, 61-80.
23. Ashworth, D. J. and Shaw, G. 2006. Soil migration, plant uptake and volatilization of radio-selenium.Science of the Total Environment,370, 506-514.
24. Ashworth, D. J. and Shaw, G. 2005. Soil migration and plant uptake of technetium from a fluctuating water table.Journal of Environmental Radioactivity, 81, 155-171.
25. Ashworth, D. J. and Alloway, B. J. 2004. Soil mobility of sewage sludge-derived dissolved organic matter, copper, nickel and zinc.Environmental Pollution, 127, 137-144.
26. Ashworth, D. J., Shaw, G., Butler, A. P. and Ciciani, L. 2003. Soil transport and plant uptake of radio-iodine from near-surface groundwater.Journal of Environmental Radioactivity, 70, 99-114.

Profile Details

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