Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria
Ona River is one of the three major rivers draining the city of Ibadan. Groundwater is the major source of drinking water in the metropolis; however, data on quality of shallow aquifers bordering Ona River is relatively scarce. This study aimed to evaluate bacteriological status, heavy metal content...
Gespeichert in:
| Veröffentlicht in: | Environmental monitoring and assessment 2021-03, Vol.193 (3), p.126, Article 126 |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | 3 |
| container_start_page | 126 |
| container_title | Environmental monitoring and assessment |
| container_volume | 193 |
| creator | Ganiyu, Saheed Adekunle Mabunmi, Afolabi A. Olurin, Oluwaseun T. Adeyemi, Azeem A. Jegede, Oluwaseyi A. Okeh, Anthony |
| description | Ona River is one of the three major rivers draining the city of Ibadan. Groundwater is the major source of drinking water in the metropolis; however, data on quality of shallow aquifers bordering Ona River is relatively scarce. This study aimed to evaluate bacteriological status, heavy metal content, and associated human and ecological health risks in hand-dug wells nearby Ona River. A total of 24 water samples from 12 sampling points were collected for chemical and microbial analyses. Heavy metals and microbial pathogens were analyzed using atomic absorption spectrometry and total plate count methods, respectively. Analyses of microbial and heavy metal (HMs) data showed that shallow hand-dug wells within the vicinity of Ona River were bacteriologically contaminated while most of analyzed heavy metals (except manganese) exceeded the drinking water quality standards. Interpretation of microbial and heavy metal (HMs) data identified predominance of anthropogenic activities as the major source of contamination in drinking water. Further scrutiny of HM data through integrated pollution indices identified two nearby wells (
S
7
and
S
8
) exceed the safe limits and pose considerable risk to inhabitants. In terms of ecological risk index (ER), cadmium exhibited considerable to very high ER in all collected samples while manganese and zinc showed low ER in all analyzed water samples. Potential of non-carcinogenic risk through ingestion pathway in the study area was identified with the order of contributive ratios by HMs as Cd > Pb > Zn > Fe > Mn. The calculated target hazard quotient (THQ) due to ingested HMs for three human population categories exceeds the safe limit in the order of adult |
| doi_str_mv | 10.1007/s10661-021-08910-9 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2489438638</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2489438638</sourcerecordid><originalsourceid>FETCH-LOGICAL-c375t-3cb73c30b7a7f95fa2199f4c10bf0ba01389869f08e81905121bc210c7b263d23</originalsourceid><addsrcrecordid>eNp9kMtOxCAUhonR6Hh5AReGxK3VA0wLLI3xlhhNvKwJtHQG08II7Ux8e9HxsnNBTgjf-Q_nQ-iQwCkB4GeJQFWRAmg-QhIo5AaakJKzgspSbqIJkIoXFavkDtpN6RUAJJ_KbbTDWCk4keUELc9Tsin11g84tLh3dQzG6Q5r3-C51ct33Nsh3-vgB907rwcXPHYep7nuurDC80wWzTjDK9t1CZsQGxudn-EHr_GjW9p4gp_COMxXNg343s3yq95HW63ukj34rnvo5ery-eKmuHu4vr04vytqxsuhYLXhrGZguOatLFtNiZTttCZgWjAaCBNSVLIFYQWRUBJKTE0J1NzQijWU7aHjde4ihrcxf0C9hjH6PFLRqZBTJiomMkXXVF4-pWhbtYiu1_FdEVCfqtVatcqq1ZdqJXPT0Xf0aHrb_Lb8uM0AWwNp8enDxr_Z_8R-AFWrijE</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2489438638</pqid></control><display><type>article</type><title>Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria</title><source>MEDLINE</source><source>Springer Nature - Complete Springer Journals</source><creator>Ganiyu, Saheed Adekunle ; Mabunmi, Afolabi A. ; Olurin, Oluwaseun T. ; Adeyemi, Azeem A. ; Jegede, Oluwaseyi A. ; Okeh, Anthony</creator><creatorcontrib>Ganiyu, Saheed Adekunle ; Mabunmi, Afolabi A. ; Olurin, Oluwaseun T. ; Adeyemi, Azeem A. ; Jegede, Oluwaseyi A. ; Okeh, Anthony</creatorcontrib><description>Ona River is one of the three major rivers draining the city of Ibadan. Groundwater is the major source of drinking water in the metropolis; however, data on quality of shallow aquifers bordering Ona River is relatively scarce. This study aimed to evaluate bacteriological status, heavy metal content, and associated human and ecological health risks in hand-dug wells nearby Ona River. A total of 24 water samples from 12 sampling points were collected for chemical and microbial analyses. Heavy metals and microbial pathogens were analyzed using atomic absorption spectrometry and total plate count methods, respectively. Analyses of microbial and heavy metal (HMs) data showed that shallow hand-dug wells within the vicinity of Ona River were bacteriologically contaminated while most of analyzed heavy metals (except manganese) exceeded the drinking water quality standards. Interpretation of microbial and heavy metal (HMs) data identified predominance of anthropogenic activities as the major source of contamination in drinking water. Further scrutiny of HM data through integrated pollution indices identified two nearby wells (
S
7
and
S
8
) exceed the safe limits and pose considerable risk to inhabitants. In terms of ecological risk index (ER), cadmium exhibited considerable to very high ER in all collected samples while manganese and zinc showed low ER in all analyzed water samples. Potential of non-carcinogenic risk through ingestion pathway in the study area was identified with the order of contributive ratios by HMs as Cd > Pb > Zn > Fe > Mn. The calculated target hazard quotient (THQ) due to ingested HMs for three human population categories exceeds the safe limit in the order of adult < children < infants. The study revealed the deteriorated state of waterside shallow hand-dug wells that need immediate actions by relevant stakeholders in water management. The study recommends improved hygienic practices, pretreatment of water before use, and most importantly, provision of potable pipe-borne water supply to the residents of the study area.</description><identifier>ISSN: 0167-6369</identifier><identifier>EISSN: 1573-2959</identifier><identifier>DOI: 10.1007/s10661-021-08910-9</identifier><identifier>PMID: 33587195</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Absorption spectroscopy ; Adult ; Anthropogenic factors ; Aquifers ; Atmospheric Protection/Air Quality Control/Air Pollution ; Atomic absorption analysis ; Atomic absorption spectroscopy ; Cadmium ; Carcinogens ; Child ; Cities ; Contamination ; Data ; Drainage ; Drinking water ; Dug wells ; Earth and Environmental Science ; Ecology ; Ecotoxicology ; Environment ; Environmental Management ; Environmental Monitoring ; Environmental science ; Groundwater ; Health risks ; Heavy metal content ; Heavy metals ; Human populations ; Humans ; Hygiene ; Identification ; Infants ; Ingestion ; Lead ; Manganese ; Metal content ; Metals, Heavy - analysis ; Microbial contamination ; Microorganisms ; Monitoring/Environmental Analysis ; Nigeria ; Pathogens ; Pollution index ; Pretreatment ; Pretreatment of water ; Quality standards ; Quotients ; Risk Assessment ; Rivers ; Spectral analysis ; Spectrometry ; Water analysis ; Water management ; Water Pollutants, Chemical - analysis ; Water pollution ; Water quality ; Water quality standards ; Water sampling ; Water supply ; Zinc</subject><ispartof>Environmental monitoring and assessment, 2021-03, Vol.193 (3), p.126, Article 126</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG part of Springer Nature 2021</rights><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c375t-3cb73c30b7a7f95fa2199f4c10bf0ba01389869f08e81905121bc210c7b263d23</citedby><cites>FETCH-LOGICAL-c375t-3cb73c30b7a7f95fa2199f4c10bf0ba01389869f08e81905121bc210c7b263d23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10661-021-08910-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10661-021-08910-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,41471,42540,51302</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33587195$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ganiyu, Saheed Adekunle</creatorcontrib><creatorcontrib>Mabunmi, Afolabi A.</creatorcontrib><creatorcontrib>Olurin, Oluwaseun T.</creatorcontrib><creatorcontrib>Adeyemi, Azeem A.</creatorcontrib><creatorcontrib>Jegede, Oluwaseyi A.</creatorcontrib><creatorcontrib>Okeh, Anthony</creatorcontrib><title>Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria</title><title>Environmental monitoring and assessment</title><addtitle>Environ Monit Assess</addtitle><addtitle>Environ Monit Assess</addtitle><description>Ona River is one of the three major rivers draining the city of Ibadan. Groundwater is the major source of drinking water in the metropolis; however, data on quality of shallow aquifers bordering Ona River is relatively scarce. This study aimed to evaluate bacteriological status, heavy metal content, and associated human and ecological health risks in hand-dug wells nearby Ona River. A total of 24 water samples from 12 sampling points were collected for chemical and microbial analyses. Heavy metals and microbial pathogens were analyzed using atomic absorption spectrometry and total plate count methods, respectively. Analyses of microbial and heavy metal (HMs) data showed that shallow hand-dug wells within the vicinity of Ona River were bacteriologically contaminated while most of analyzed heavy metals (except manganese) exceeded the drinking water quality standards. Interpretation of microbial and heavy metal (HMs) data identified predominance of anthropogenic activities as the major source of contamination in drinking water. Further scrutiny of HM data through integrated pollution indices identified two nearby wells (
S
7
and
S
8
) exceed the safe limits and pose considerable risk to inhabitants. In terms of ecological risk index (ER), cadmium exhibited considerable to very high ER in all collected samples while manganese and zinc showed low ER in all analyzed water samples. Potential of non-carcinogenic risk through ingestion pathway in the study area was identified with the order of contributive ratios by HMs as Cd > Pb > Zn > Fe > Mn. The calculated target hazard quotient (THQ) due to ingested HMs for three human population categories exceeds the safe limit in the order of adult < children < infants. The study revealed the deteriorated state of waterside shallow hand-dug wells that need immediate actions by relevant stakeholders in water management. The study recommends improved hygienic practices, pretreatment of water before use, and most importantly, provision of potable pipe-borne water supply to the residents of the study area.</description><subject>Absorption spectroscopy</subject><subject>Adult</subject><subject>Anthropogenic factors</subject><subject>Aquifers</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Atomic absorption analysis</subject><subject>Atomic absorption spectroscopy</subject><subject>Cadmium</subject><subject>Carcinogens</subject><subject>Child</subject><subject>Cities</subject><subject>Contamination</subject><subject>Data</subject><subject>Drainage</subject><subject>Drinking water</subject><subject>Dug wells</subject><subject>Earth and Environmental Science</subject><subject>Ecology</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Management</subject><subject>Environmental Monitoring</subject><subject>Environmental science</subject><subject>Groundwater</subject><subject>Health risks</subject><subject>Heavy metal content</subject><subject>Heavy metals</subject><subject>Human populations</subject><subject>Humans</subject><subject>Hygiene</subject><subject>Identification</subject><subject>Infants</subject><subject>Ingestion</subject><subject>Lead</subject><subject>Manganese</subject><subject>Metal content</subject><subject>Metals, Heavy - analysis</subject><subject>Microbial contamination</subject><subject>Microorganisms</subject><subject>Monitoring/Environmental Analysis</subject><subject>Nigeria</subject><subject>Pathogens</subject><subject>Pollution index</subject><subject>Pretreatment</subject><subject>Pretreatment of water</subject><subject>Quality standards</subject><subject>Quotients</subject><subject>Risk Assessment</subject><subject>Rivers</subject><subject>Spectral analysis</subject><subject>Spectrometry</subject><subject>Water analysis</subject><subject>Water management</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water pollution</subject><subject>Water quality</subject><subject>Water quality standards</subject><subject>Water sampling</subject><subject>Water supply</subject><subject>Zinc</subject><issn>0167-6369</issn><issn>1573-2959</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kMtOxCAUhonR6Hh5AReGxK3VA0wLLI3xlhhNvKwJtHQG08II7Ux8e9HxsnNBTgjf-Q_nQ-iQwCkB4GeJQFWRAmg-QhIo5AaakJKzgspSbqIJkIoXFavkDtpN6RUAJJ_KbbTDWCk4keUELc9Tsin11g84tLh3dQzG6Q5r3-C51ct33Nsh3-vgB907rwcXPHYep7nuurDC80wWzTjDK9t1CZsQGxudn-EHr_GjW9p4gp_COMxXNg343s3yq95HW63ukj34rnvo5ery-eKmuHu4vr04vytqxsuhYLXhrGZguOatLFtNiZTttCZgWjAaCBNSVLIFYQWRUBJKTE0J1NzQijWU7aHjde4ihrcxf0C9hjH6PFLRqZBTJiomMkXXVF4-pWhbtYiu1_FdEVCfqtVatcqq1ZdqJXPT0Xf0aHrb_Lb8uM0AWwNp8enDxr_Z_8R-AFWrijE</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Ganiyu, Saheed Adekunle</creator><creator>Mabunmi, Afolabi A.</creator><creator>Olurin, Oluwaseun T.</creator><creator>Adeyemi, Azeem A.</creator><creator>Jegede, Oluwaseyi A.</creator><creator>Okeh, Anthony</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7QL</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7TG</scope><scope>7TN</scope><scope>7U7</scope><scope>7UA</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X7</scope><scope>7XB</scope><scope>87Z</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>F~G</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>KL.</scope><scope>L.-</scope><scope>L.G</scope><scope>M0C</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7N</scope><scope>P64</scope><scope>PATMY</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>SOI</scope></search><sort><creationdate>20210301</creationdate><title>Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria</title><author>Ganiyu, Saheed Adekunle ; Mabunmi, Afolabi A. ; Olurin, Oluwaseun T. ; Adeyemi, Azeem A. ; Jegede, Oluwaseyi A. ; Okeh, Anthony</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-3cb73c30b7a7f95fa2199f4c10bf0ba01389869f08e81905121bc210c7b263d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Absorption spectroscopy</topic><topic>Adult</topic><topic>Anthropogenic factors</topic><topic>Aquifers</topic><topic>Atmospheric Protection/Air Quality Control/Air Pollution</topic><topic>Atomic absorption analysis</topic><topic>Atomic absorption spectroscopy</topic><topic>Cadmium</topic><topic>Carcinogens</topic><topic>Child</topic><topic>Cities</topic><topic>Contamination</topic><topic>Data</topic><topic>Drainage</topic><topic>Drinking water</topic><topic>Dug wells</topic><topic>Earth and Environmental Science</topic><topic>Ecology</topic><topic>Ecotoxicology</topic><topic>Environment</topic><topic>Environmental Management</topic><topic>Environmental Monitoring</topic><topic>Environmental science</topic><topic>Groundwater</topic><topic>Health risks</topic><topic>Heavy metal content</topic><topic>Heavy metals</topic><topic>Human populations</topic><topic>Humans</topic><topic>Hygiene</topic><topic>Identification</topic><topic>Infants</topic><topic>Ingestion</topic><topic>Lead</topic><topic>Manganese</topic><topic>Metal content</topic><topic>Metals, Heavy - analysis</topic><topic>Microbial contamination</topic><topic>Microorganisms</topic><topic>Monitoring/Environmental Analysis</topic><topic>Nigeria</topic><topic>Pathogens</topic><topic>Pollution index</topic><topic>Pretreatment</topic><topic>Pretreatment of water</topic><topic>Quality standards</topic><topic>Quotients</topic><topic>Risk Assessment</topic><topic>Rivers</topic><topic>Spectral analysis</topic><topic>Spectrometry</topic><topic>Water analysis</topic><topic>Water management</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water pollution</topic><topic>Water quality</topic><topic>Water quality standards</topic><topic>Water sampling</topic><topic>Water supply</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ganiyu, Saheed Adekunle</creatorcontrib><creatorcontrib>Mabunmi, Afolabi A.</creatorcontrib><creatorcontrib>Olurin, Oluwaseun T.</creatorcontrib><creatorcontrib>Adeyemi, Azeem A.</creatorcontrib><creatorcontrib>Jegede, Oluwaseyi A.</creatorcontrib><creatorcontrib>Okeh, Anthony</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ABI/INFORM Global (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ABI/INFORM Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Natural Science Collection (ProQuest)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Business Premium Collection (Alumni)</collection><collection>Health Research Premium Collection</collection><collection>ABI/INFORM Global (Corporate)</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection (Alumni Edition)</collection><collection>ProQuest Business Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>ABI/INFORM Professional Advanced</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ABI/INFORM Global</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database (ProQuest)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Business (Alumni)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><collection>Environment Abstracts</collection><jtitle>Environmental monitoring and assessment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ganiyu, Saheed Adekunle</au><au>Mabunmi, Afolabi A.</au><au>Olurin, Oluwaseun T.</au><au>Adeyemi, Azeem A.</au><au>Jegede, Oluwaseyi A.</au><au>Okeh, Anthony</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria</atitle><jtitle>Environmental monitoring and assessment</jtitle><stitle>Environ Monit Assess</stitle><addtitle>Environ Monit Assess</addtitle><date>2021-03-01</date><risdate>2021</risdate><volume>193</volume><issue>3</issue><spage>126</spage><pages>126-</pages><artnum>126</artnum><issn>0167-6369</issn><eissn>1573-2959</eissn><abstract>Ona River is one of the three major rivers draining the city of Ibadan. Groundwater is the major source of drinking water in the metropolis; however, data on quality of shallow aquifers bordering Ona River is relatively scarce. This study aimed to evaluate bacteriological status, heavy metal content, and associated human and ecological health risks in hand-dug wells nearby Ona River. A total of 24 water samples from 12 sampling points were collected for chemical and microbial analyses. Heavy metals and microbial pathogens were analyzed using atomic absorption spectrometry and total plate count methods, respectively. Analyses of microbial and heavy metal (HMs) data showed that shallow hand-dug wells within the vicinity of Ona River were bacteriologically contaminated while most of analyzed heavy metals (except manganese) exceeded the drinking water quality standards. Interpretation of microbial and heavy metal (HMs) data identified predominance of anthropogenic activities as the major source of contamination in drinking water. Further scrutiny of HM data through integrated pollution indices identified two nearby wells (
S
7
and
S
8
) exceed the safe limits and pose considerable risk to inhabitants. In terms of ecological risk index (ER), cadmium exhibited considerable to very high ER in all collected samples while manganese and zinc showed low ER in all analyzed water samples. Potential of non-carcinogenic risk through ingestion pathway in the study area was identified with the order of contributive ratios by HMs as Cd > Pb > Zn > Fe > Mn. The calculated target hazard quotient (THQ) due to ingested HMs for three human population categories exceeds the safe limit in the order of adult < children < infants. The study revealed the deteriorated state of waterside shallow hand-dug wells that need immediate actions by relevant stakeholders in water management. The study recommends improved hygienic practices, pretreatment of water before use, and most importantly, provision of potable pipe-borne water supply to the residents of the study area.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><pmid>33587195</pmid><doi>10.1007/s10661-021-08910-9</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0167-6369 |
| ispartof | Environmental monitoring and assessment, 2021-03, Vol.193 (3), p.126, Article 126 |
| issn | 0167-6369 1573-2959 |
| language | eng |
| recordid | cdi_proquest_journals_2489438638 |
| source | MEDLINE; Springer Nature - Complete Springer Journals |
| subjects | Absorption spectroscopy Adult Anthropogenic factors Aquifers Atmospheric Protection/Air Quality Control/Air Pollution Atomic absorption analysis Atomic absorption spectroscopy Cadmium Carcinogens Child Cities Contamination Data Drainage Drinking water Dug wells Earth and Environmental Science Ecology Ecotoxicology Environment Environmental Management Environmental Monitoring Environmental science Groundwater Health risks Heavy metal content Heavy metals Human populations Humans Hygiene Identification Infants Ingestion Lead Manganese Metal content Metals, Heavy - analysis Microbial contamination Microorganisms Monitoring/Environmental Analysis Nigeria Pathogens Pollution index Pretreatment Pretreatment of water Quality standards Quotients Risk Assessment Rivers Spectral analysis Spectrometry Water analysis Water management Water Pollutants, Chemical - analysis Water pollution Water quality Water quality standards Water sampling Water supply Zinc |
| title | Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-16T13%3A04%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Assessment%20of%20microbial%20and%20heavy%20metal%20contamination%20in%20shallow%20hand-dug%20wells%20bordering%20Ona%20River,%20Southwest%20Nigeria&rft.jtitle=Environmental%20monitoring%20and%20assessment&rft.au=Ganiyu,%20Saheed%20Adekunle&rft.date=2021-03-01&rft.volume=193&rft.issue=3&rft.spage=126&rft.pages=126-&rft.artnum=126&rft.issn=0167-6369&rft.eissn=1573-2959&rft_id=info:doi/10.1007/s10661-021-08910-9&rft_dat=%3Cproquest_cross%3E2489438638%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2489438638&rft_id=info:pmid/33587195&rfr_iscdi=true |