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Datum
2021-07-01Autor
Asirifi, IsaacKätzl, KorbinianWerner, SteffenSaba, Courage Kosi SetsoafiaAbagale, Felix KofiAmoah, PhilipMarschner, BerndSchlagwort
333 Boden- und Energiewirtschaft 550 Geowissenschaften GhanaAbwasserverwertungBewässerungStädtische LandwirtschaftPathogener MikroorganismusSchwermetallbelastungPflanzenkohleMetadata
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Aufsatz
Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung. Grant Number: 031A242-A,B; Bundesministerium für Bildung und Forschung. Grant Number: 031A242-A,B
Pathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and wastewater irrigation
Zusammenfassung
The benefit of biochar as a soil fertility enhancer is well known and has been broadly investigated. Equally, many tropical and subtropical countries use wastewater for irrigation in urban agriculture. To assess the related health risks, we determined pathogen and heavy metal fate associated with biochar application and wastewater irrigation in the urban agriculture of northern Ghana. Rice (Oryza L.) husk biochar (20 t ha−¹), N–P–K 15–15–15 fertilizer (212.5 kg ha−¹), and their combinations were evaluated in a field-based experiment. Untreated wastewater and tap water served as irrigation water. Red amaranth (Amaranthus cruentus L.) was used as a test crop and was grown in wet (WS) and dry (DS) cropping seasons. Irrigation water, soil, and vegetables were analyzed for heavy metals, Escherichia coli, fecal coliform, helminth eggs, and Salmonella spp. Unlike the pathogens, analyzed heavy metals from irrigation water and soil were below the FAO/WHO permissible standard for agricultural activities. Wastewater irrigation caused E. coli concentrations ranging from 0.5 to 0.6 (WS) and from 0.7 to 0.8 (DS) log₁₀ colony forming units per gram fresh weight (CFU gFW−¹) on vegetables and from 1.7 to 2.1 (WS) and from 0.6 to 1.0 (DS) log₁₀CFU per gram dry weight (gDW−¹) in soil. Average log₁₀CFU gFW−¹ rates of 6.19 and 3.44 fecal coliform were found on vegetables, whereas in soil, 4.26 and 4.58 log₁₀CFU gDW−¹ were observed in WS and DS, respectively. Helminth egg populations were high in wastewater and were transferred to the crops and soil. Biochar did not affect bacteria contamination. Pathogen contamination on vegetables and in soil were directly linked to the irrigation water, with minimal or no difference observed from biochar application.
Zitierform
In: Journal of Environmental Quality Volume 50 / Issue 5 (2021-07-01) , S. 1097-1109 ; eissn:1537-2537Förderhinweis
Gefördert im Rahmen des Projekts DEALBundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung. Grant Number: 031A242-A,B; Bundesministerium für Bildung und Forschung. Grant Number: 031A242-A,B
Zitieren
@article{doi:10.17170/kobra-202110084855,
author={Asirifi, Isaac and Kätzl, Korbinian and Werner, Steffen and Saba, Courage Kosi Setsoafia and Abagale, Felix Kofi and Amoah, Philip and Marschner, Bernd},
title={Pathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and wastewater irrigation},
journal={Journal of Environmental Quality},
year={2021}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2021$n2021 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/13365 3000 Asirifi, Isaac 3010 Kätzl, Korbinian 3010 Werner, Steffen 3010 Saba, Courage Kosi Setsoafia 3010 Abagale, Felix Kofi 3010 Amoah, Philip 3010 Marschner, Bernd 4000 Pathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and wastewater irrigation / Asirifi, Isaac 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/13365=x R 4204 \$dAufsatz 4170 5550 {{Ghana}} 5550 {{Abwasserverwertung}} 5550 {{Bewässerung}} 5550 {{Städtische Landwirtschaft}} 5550 {{Pathogener Mikroorganismus}} 5550 {{Schwermetallbelastung}} 5550 {{Pflanzenkohle}} 7136 ##0##http://hdl.handle.net/123456789/13365
2021-11-08T11:43:07Z 2021-11-08T11:43:07Z 2021-07-01 doi:10.17170/kobra-202110084855 http://hdl.handle.net/123456789/13365 Gefördert im Rahmen des Projekts DEAL Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung. Grant Number: 031A242-A,B; Bundesministerium für Bildung und Forschung. Grant Number: 031A242-A,B eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ 333 550 Pathogen and heavy metal contamination in urban agroecosystems of northern Ghana: Influence of biochar application and wastewater irrigation Aufsatz The benefit of biochar as a soil fertility enhancer is well known and has been broadly investigated. Equally, many tropical and subtropical countries use wastewater for irrigation in urban agriculture. To assess the related health risks, we determined pathogen and heavy metal fate associated with biochar application and wastewater irrigation in the urban agriculture of northern Ghana. Rice (Oryza L.) husk biochar (20 t ha−¹), N–P–K 15–15–15 fertilizer (212.5 kg ha−¹), and their combinations were evaluated in a field-based experiment. Untreated wastewater and tap water served as irrigation water. Red amaranth (Amaranthus cruentus L.) was used as a test crop and was grown in wet (WS) and dry (DS) cropping seasons. Irrigation water, soil, and vegetables were analyzed for heavy metals, Escherichia coli, fecal coliform, helminth eggs, and Salmonella spp. Unlike the pathogens, analyzed heavy metals from irrigation water and soil were below the FAO/WHO permissible standard for agricultural activities. Wastewater irrigation caused E. coli concentrations ranging from 0.5 to 0.6 (WS) and from 0.7 to 0.8 (DS) log₁₀ colony forming units per gram fresh weight (CFU gFW−¹) on vegetables and from 1.7 to 2.1 (WS) and from 0.6 to 1.0 (DS) log₁₀CFU per gram dry weight (gDW−¹) in soil. Average log₁₀CFU gFW−¹ rates of 6.19 and 3.44 fecal coliform were found on vegetables, whereas in soil, 4.26 and 4.58 log₁₀CFU gDW−¹ were observed in WS and DS, respectively. Helminth egg populations were high in wastewater and were transferred to the crops and soil. Biochar did not affect bacteria contamination. Pathogen contamination on vegetables and in soil were directly linked to the irrigation water, with minimal or no difference observed from biochar application. open access Asirifi, Isaac Kätzl, Korbinian Werner, Steffen Saba, Courage Kosi Setsoafia Abagale, Felix Kofi Amoah, Philip Marschner, Bernd doi:10.1002/jeq2.20260 Grant Number: 031A242-A,B; Grant Number: 031A242-A,B Ghana Abwasserverwertung Bewässerung Städtische Landwirtschaft Pathogener Mikroorganismus Schwermetallbelastung Pflanzenkohle publishedVersion eissn:1537-2537 Issue 5 Journal of Environmental Quality 1097-1109 Volume 50 false
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