Imperial College London
Alternate

ProfessorStephenSmith

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Bioresource Systems
 
 
 
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Contact

 

+44 (0)20 7594 6051s.r.smith

 
 
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Assistant

 

Miss Judith Barritt +44 (0)20 7594 5967

 
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Location

 

229Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Rigby:2023:10.1016/j.scitotenv.2023.163546,
author = {Rigby, H and Dowding, A and Fernandes, A and Humphries, D and Petch, RG and Reynolds, CK and Rose, M and Smith, SR},
doi = {10.1016/j.scitotenv.2023.163546},
journal = {Science of the Total Environment},
pages = {1--16},
title = {Transfer of polychlorinated, polybrominated and mixed-halogenated dioxins, furans and biphenyls, polychlorinated naphthalenes and alkanes, polycyclic aromatic hydrocarbons and chlorobenzenes to the milk of dairy cattle from controlled ingestion of industrial and municipal bioresources recycled to agricultural land},
url = {http://dx.doi.org/10.1016/j.scitotenv.2023.163546},
volume = {886},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Recycled bioresources (biosolids, compost-like-output, meat and bonemeal ash, poultry litter ash, paper sludge ash) were added to the feed of dairy cattle to simulate incidental ingestion from agricultural utilisation, to investigate the transfer of organic contaminants from the ingested materials to milk. The bioresources were blended with a loamy sand soil at agronomic rates to simulate a single application to land, which was added to the diet at 5 % of the total intake on a dry matter (DM) basis. Biosolids, and control treatments consisting of unamended soil, were also added directly to the feed at 5 % DM. The cattle were fed the bioresource amended diets for a target period of three to four weeks, depending on material, and monitoring continued for four weeks after treatment withdrawal. Milk samples were taken weekly with chemical analysis of selected samples for a range of organic contaminants including: polychlorinated, polybrominated and mixed-halogenated dioxins, furans and biphenyls, polychlorinated naphthalenes and alkanes (often called chlorinated paraffins), polycyclic aromatic hydrocarbons and chlorobenzenes. No statistically significant additional transfer of organic contaminants to the milk was detected due to the relatively low levels of contaminants present when the bioresources were incorporated with soil at agronomic rates. However, direct biosolids ingestion by cattle significantly increased the transfer of contaminants to milk in comparison to control animals. Although present in larger concentrations in biosolids than their chlorinated counterparts, the carry over rates and bioconcentration factors of brominated dioxins and furans were considerably smaller. Direct ingestion of biosolids resulted in most contaminants approaching, but not always completely reaching, steady state concentrations within the treatment feeding period, however, concentrations generally declined to control values within four-weeks after withdrawing the biosoli
AU  - Rigby,H
AU  - Dowding,A
AU  - Fernandes,A
AU  - Humphries,D
AU  - Petch,RG
AU  - Reynolds,CK
AU  - Rose,M
AU  - Smith,SR
DO  - 10.1016/j.scitotenv.2023.163546
EP  - 16
PY  - 2023///
SN  - 0048-9697
SP  - 1
TI  - Transfer of polychlorinated, polybrominated and mixed-halogenated dioxins, furans and biphenyls, polychlorinated naphthalenes and alkanes, polycyclic aromatic hydrocarbons and chlorobenzenes to the milk of dairy cattle from controlled ingestion of industrial and municipal bioresources recycled to agricultural land
T2  - Science of the Total Environment
UR  - http://dx.doi.org/10.1016/j.scitotenv.2023.163546
UR  - https://www.ncbi.nlm.nih.gov/pubmed/37080322
UR  - https://www.sciencedirect.com/science/article/pii/S0048969723021654
UR  - http://hdl.handle.net/10044/1/105923
VL  - 886
ER  -
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