Antibiotic Uptake by Plant Model
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Antibiotic Uptake by Plant Model. / Azanu, David; Jorgensen, Sven Erik; Darko, Godfred; Styrishave, Bjarne; Abaidoo, Robert Clement.
In: Environmental Modeling & Assessment, Vol. 25, No. 4, 2020, p. 545-553.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Antibiotic Uptake by Plant Model
AU - Azanu, David
AU - Jorgensen, Sven Erik
AU - Darko, Godfred
AU - Styrishave, Bjarne
AU - Abaidoo, Robert Clement
PY - 2020
Y1 - 2020
N2 - A model for predicting the uptake of tetracycline and amoxicillin by vegetable plants using STELLA (R) was developed. Simulations were performed for a 30-day period during which lettuce and carrot were irrigated with the two antibiotics of known concentrations. The model predicts antibiotic concentrations in several compartments, including porewater, soil, and plant tissues. Simulations showed that the number of antibiotics found in soil fraction was larger than the amount in plant tissues. The developed model for tetracycline uptake by carrot gave a chi-square (chi(2)) value of 0.2 and by lettuce recorded a chi(2) value of 0.6. The model was considered efficient based on the chi(2) values. Validation of the antibiotic's uptake model showed an appreciable agreement between simulated and measured experimental data with deviation expressed as percentage being 2.6% for tetracycline uptake by carrot model and 37.9% for tetracycline uptake by lettuce model. Leaching and evaporation processes of antibiotics were found from the sensitivity analysis of the model to be the most important processes influencing the uptake model. These processes could be determined accurately and hence makes the model easily adoptive for other antibiotics. Further antibiotic uptake studies should focus on the physical-chemical properties of the antibiotics and abiotic environmental condition effect on the uptake model developed.
AB - A model for predicting the uptake of tetracycline and amoxicillin by vegetable plants using STELLA (R) was developed. Simulations were performed for a 30-day period during which lettuce and carrot were irrigated with the two antibiotics of known concentrations. The model predicts antibiotic concentrations in several compartments, including porewater, soil, and plant tissues. Simulations showed that the number of antibiotics found in soil fraction was larger than the amount in plant tissues. The developed model for tetracycline uptake by carrot gave a chi-square (chi(2)) value of 0.2 and by lettuce recorded a chi(2) value of 0.6. The model was considered efficient based on the chi(2) values. Validation of the antibiotic's uptake model showed an appreciable agreement between simulated and measured experimental data with deviation expressed as percentage being 2.6% for tetracycline uptake by carrot model and 37.9% for tetracycline uptake by lettuce model. Leaching and evaporation processes of antibiotics were found from the sensitivity analysis of the model to be the most important processes influencing the uptake model. These processes could be determined accurately and hence makes the model easily adoptive for other antibiotics. Further antibiotic uptake studies should focus on the physical-chemical properties of the antibiotics and abiotic environmental condition effect on the uptake model developed.
KW - STELLA (R)
KW - Uptake model
KW - Tetracycline
KW - Amoxicillin
KW - Lettuce
KW - Carrot
KW - VETERINARY ANTIBIOTICS
KW - ORGANIC-CHEMICALS
KW - HUMAN HEALTH
KW - SOIL
KW - WATER
KW - VEGETABLES
KW - ANIMALS
KW - MANURE
KW - RISK
U2 - 10.1007/s10666-020-09712-y
DO - 10.1007/s10666-020-09712-y
M3 - Journal article
VL - 25
SP - 545
EP - 553
JO - Environmental Modeling & Assessment
JF - Environmental Modeling & Assessment
SN - 1420-2026
IS - 4
ER -
ID: 246672607