IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA

Cassava tubers and soil samples on which they were cultivated were collected at 10m, 15m and 20m from two sections of roadsides of Owerri-Aba expressway. Samples from section 1 were analyzed for the presence of lead (Pb), cadmium (Cd), copper (Cu) and manganese (Mn) while those from section 2 were a...

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Autores principales:	Henry Uzoma ANUFORO, Campbell Onyeka AKUJOBI, Ethelbert Uchechukwu EZEJI, Confidence Chiamaka OKEHI
Formato:	article
Lenguaje:	EN
Publicado:	Stefan cel Mare University of Suceava 2019
Materias:	vehicular traffic heavy metals cassava tubers food safety roadsides Food processing and manufacture TP368-456
Acceso en línea:	https://doaj.org/article/7675f7404c164d4d89960eca4e968f89
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spelling	oai:doaj.org-article:7675f7404c164d4d89960eca4e968f892021-12-02T17:48:49ZIMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA2068-66092559-6381https://doaj.org/article/7675f7404c164d4d89960eca4e968f892019-12-01T00:00:00Zhttp://www.fia.usv.ro/fiajournal/index.php/FENS/article/view/685https://doaj.org/toc/2068-6609https://doaj.org/toc/2559-6381Cassava tubers and soil samples on which they were cultivated were collected at 10m, 15m and 20m from two sections of roadsides of Owerri-Aba expressway. Samples from section 1 were analyzed for the presence of lead (Pb), cadmium (Cd), copper (Cu) and manganese (Mn) while those from section 2 were analyzed for lead, zinc (Zn), chromium (Cr), cadmium and nickel (Ni) using atomic absorption spectrophotometer (AAS). Results obtained showed that at section 1, the concentrations of heavy metals in cassava samples were in the range (0.0-13.5mg/kg) Pb, (0.0-0.5mg/kg) Mn, (1.5-16mg/kg) Cu and (0.05-0.4mg/kg) Cd. At section 2, they ranged from 3.22-5.48mg/kg (Pb), 8.70-14.18mg/kg (Zn), 0.0-0.16mg/kg (Cr), 1.70-2.12mg/kg (Ni) and 0.03-0.22mg/kg (Cd). Similarly, in soil samples from section 1, the concentrations were (0.0-25mg/kg) Pb, (0.5-4.5mg/kg) Mn, (0.0-10mg/kg) Cu and (0.1-0.55mg/kg) Cd, while those from section 2 were (7.4-9.6mg/kg) Pb, (9.5-15.5mg/kg) Zn, (0.2-0.7mg/kg) Cr, (3.1-4.8mg/kg) Ni and (0.3-0.5mg/kg) Cd. In both samples from section 1, as well as only soil samples from section 2, the average concentrations of heavy metals studied decreased from 10 to 20m from the roadsides, except for Pb. Moreover, at section 1, the order of concentration of heavy metals is Pd>Cu>Mn>Cd for both soil and cassava tuber samples but Zn>Pb>Ni>Cr>Cd in samples from section 2. Only Pb in cassava tubers harvested at most of the locations in the two sections far exceeded the 2.0 mg/kg maximum permissible limit (MPL) set by WHO/FAO. Furthermore, result of bioaccumulation factor showed that the cassava samples moderately bioaccumulated the heavy metals.Henry Uzoma ANUFORO Campbell Onyeka AKUJOBIEthelbert Uchechukwu EZEJI Confidence Chiamaka OKEHIStefan cel Mare University of Suceavaarticlevehicular trafficheavy metalscassava tubersfood safetyroadsidesFood processing and manufactureTP368-456ENFood and Environment Safety, Vol 18, Iss 4, Pp 272-278 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	vehicular traffic heavy metals cassava tubers food safety roadsides Food processing and manufacture TP368-456
spellingShingle	vehicular traffic heavy metals cassava tubers food safety roadsides Food processing and manufacture TP368-456 Henry Uzoma ANUFORO Campbell Onyeka AKUJOBI Ethelbert Uchechukwu EZEJI Confidence Chiamaka OKEHI IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
description	Cassava tubers and soil samples on which they were cultivated were collected at 10m, 15m and 20m from two sections of roadsides of Owerri-Aba expressway. Samples from section 1 were analyzed for the presence of lead (Pb), cadmium (Cd), copper (Cu) and manganese (Mn) while those from section 2 were analyzed for lead, zinc (Zn), chromium (Cr), cadmium and nickel (Ni) using atomic absorption spectrophotometer (AAS). Results obtained showed that at section 1, the concentrations of heavy metals in cassava samples were in the range (0.0-13.5mg/kg) Pb, (0.0-0.5mg/kg) Mn, (1.5-16mg/kg) Cu and (0.05-0.4mg/kg) Cd. At section 2, they ranged from 3.22-5.48mg/kg (Pb), 8.70-14.18mg/kg (Zn), 0.0-0.16mg/kg (Cr), 1.70-2.12mg/kg (Ni) and 0.03-0.22mg/kg (Cd). Similarly, in soil samples from section 1, the concentrations were (0.0-25mg/kg) Pb, (0.5-4.5mg/kg) Mn, (0.0-10mg/kg) Cu and (0.1-0.55mg/kg) Cd, while those from section 2 were (7.4-9.6mg/kg) Pb, (9.5-15.5mg/kg) Zn, (0.2-0.7mg/kg) Cr, (3.1-4.8mg/kg) Ni and (0.3-0.5mg/kg) Cd. In both samples from section 1, as well as only soil samples from section 2, the average concentrations of heavy metals studied decreased from 10 to 20m from the roadsides, except for Pb. Moreover, at section 1, the order of concentration of heavy metals is Pd>Cu>Mn>Cd for both soil and cassava tuber samples but Zn>Pb>Ni>Cr>Cd in samples from section 2. Only Pb in cassava tubers harvested at most of the locations in the two sections far exceeded the 2.0 mg/kg maximum permissible limit (MPL) set by WHO/FAO. Furthermore, result of bioaccumulation factor showed that the cassava samples moderately bioaccumulated the heavy metals.
format	article
author	Henry Uzoma ANUFORO Campbell Onyeka AKUJOBI Ethelbert Uchechukwu EZEJI Confidence Chiamaka OKEHI
author_facet	Henry Uzoma ANUFORO Campbell Onyeka AKUJOBI Ethelbert Uchechukwu EZEJI Confidence Chiamaka OKEHI
author_sort	Henry Uzoma ANUFORO
title	IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
title_short	IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
title_full	IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
title_fullStr	IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
title_full_unstemmed	IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA
title_sort	impact of vehicular traffic on concentrations of selected heavy metals in cassava tubers harvested from roadside in owerri, nigeria
publisher	Stefan cel Mare University of Suceava
publishDate	2019
url	https://doaj.org/article/7675f7404c164d4d89960eca4e968f89
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IMPACT OF VEHICULAR TRAFFIC ON CONCENTRATIONS OF SELECTED HEAVY METALS IN CASSAVA TUBERS HARVESTED FROM ROADSIDE IN OWERRI, NIGERIA

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