Quantification and health impact assessment of polycyclic aromatic hydrocarbons (PAHs) emissions from crop residue combustion.
Aromatic hydrocarbon
Combustion
Crop residue
PAHs
Pollutants
Journal
Heliyon
ISSN: 2405-8440
Titre abrégé: Heliyon
Pays: England
ID NLM: 101672560
Informations de publication
Date de publication:
Mar 2022
Mar 2022
Historique:
received:
29
10
2021
revised:
24
12
2021
accepted:
10
03
2022
entrez:
28
3
2022
pubmed:
29
3
2022
medline:
29
3
2022
Statut:
epublish
Résumé
Emission of Polycyclic Aromatic Hydrocarbon compounds from combustion of crop residue was investigated. Crop residues comprising maize cobs, maize husks, rice husks and bean chaff were burnt in a furnace at a temperature of 400 °C and the emissions from the combustion process were characterized using standard methods. Health risk through inhalation was assessed using toxic equivalent factors and excess lifetime cancer risk. The results showed the detection of 16 PAH compound which included: Benzo[ghi]perylene, Naphthalene, Acenaphthene, Anthracene, Phenanthrene, Fluorene, Fluoranthene, Acenaphthylene, Pyrene, Benzo[a]anthracene, Dibenzo[a,h]anthracene, Benzo[b]fluoranthene, Chrysene, Benzo[a]pyrene, Indene[1,2,3-cd]pyrene and Benzo[k]fluoranthene. Benzo[b]fluoranthene had highest mean concentration of 1.30 μg/mg while Dibenzo[a,h]anthracene had the lowest mean concentration of 0.01 μg/mg. It was also revealed that the toxicity of PAHs was due to the presence of Benzo[b]fluoranthene for all the samples except for sample 4 for which the main contribution to toxicity was emission from benzo(a)pyrene, while the cancer risk assessment estimated to be 1.2 × 10
Identifiants
pubmed: 35342830
doi: 10.1016/j.heliyon.2022.e09113
pii: S2405-8440(22)00401-7
pmc: PMC8941160
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e09113Informations de copyright
© 2022 The Author(s).
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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