Environmental impacts of cocoa production and processing in Ghana: life cycle assessment approach

Ntiamoah, Augustine; Afrane, George

doi:10.1016/j.jclepro.2007.11.004

Cited by 147 publications

(105 citation statements)

References 4 publications

(4 reference statements)

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“…It could be observed that global warming potential has the highest impact score with 1.105E+01 Kg CO 2 equivalent followed by acidification and eutrophication potentials respectively. These results compare with the findings of other authors such as; Ntiamoah and Afrane (2008) who found that Cocoa beans processing in Ghana contributed predominantly to photochemical ozone creation potential, global warming potential, acidification potential and abiotic depletion potential. Also, Papong and Malakul (2010) discovered that the ethanol conversion stage contributed mostly to the environmental impacts due to the use of coal for power and steam production in the bioethanol plants.…”

Section: Environmental Impact Based On Lca Methodologysupporting

confidence: 87%

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Life cycle assessment of cassava flour production: A case study in Southwest Nigeria

Olaniran¹,

Jekayinfa²,

Agbarha³

2017

J. Eng. Technol. Res.

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Global climate change resulting from increased greenhouse gas emission and environmental pollution remain a serious threat to the world. Food processing industries is one of the major contributors to global greenhouse gas emissions. Intergovernmental Panel on climate change (IPCC) reported that greenhouse gas emission should be reduced to avert the worst effects of climate change. One of the ways to reducing greenhouse gas emission is by assessing the environmental impact associated with food production, and one of the well-known methodologies used for environmental impact evaluation is life cycle assessment model (LCA). This paper presents the results of LCA analysis of cassava flour production in Southwestern Nigeria. The result shows that global warming potential of cassava flour production was 1.105E+01 kg CO 2 equivalent, eutrophication 2.632E-03 kg NO 3 equivalent and acidification 5.583E-03 kg SO 2 equivalent. In this study, the major contributor to global warming is the carbon dioxide (CO 2 ) emission from burning of fossil fuel (Coal) used for drying operation which emits 93% of the CO 2 , while 7% of the total CO 2 emission is from the diesel generator. This study has shown that cassava flour production is contributing greatly to environmental global warming potential in Southwest Nigeria.

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Section: Environmental Impact Based On Lca Methodologysupporting

confidence: 87%

“…Characterization factors are obtained from Kasmaprapruet et al (2009) andFrischknecht et al (2004). The units are obtained from Kasmaprapruet et al (2009), Ntiamoah andAfrane (2007).…”

Section: Environmental Impact Based On Lca Methodologymentioning

confidence: 99%

Life cycle assessment of cassava flour production: A case study in Southwest Nigeria

Olaniran¹,

Jekayinfa²,

Agbarha³

2017

J. Eng. Technol. Res.

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“…Among the recent LCA agricultural studies (Mouron et al, 2006;Zufia & Arana, 2008;Pardo & Zufia, 2012;Roer et al, 2012;Ruviaro et al, 2012), only one study evaluated the application of LCA in the cocoa production in Ghana, in which the entire system was required to produce and process 1 kg of cocoa (Ntiamoah & Afrane, 2008). On the other hand, TLF quantifies the variability of a given process.…”

Section: Discussionmentioning

confidence: 99%

Applying life cycle management of colombian cocoa production

2014

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“…Pesticides reaching the soil after spraying may affect soil quality by disturbing some soil organisms such as earthworms, microbes and natural enemies which acts as decomposers (Ntiamoah and Afrane 2008). This may decreases soil microbial biomass by directly killing or influencing activities such as behaviour, reproduction and metabolism of organism which may permanently impair and alter the closely interactive ecosystem (Aktar et al 2009;Gill and Garg 2014).…”

Section: Introductionmentioning

confidence: 99%

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

et al. 2016

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Background: Pests and diseases are recognised as major factors responsible for the decline in cocoa yield in Ghana. This has resulted in an increased use of pesticides to increase productivity. The regular application and indiscriminate use of chemicals have been associated with unintended environmental and human health consequence. The objective of this study was to determine levels of 13 organophosphorus pesticide residues in soils and drinking water sources in and around cocoa farms in Brong Ahafo region of Ghana. Methods:Organophosphorus pesticide residues were determined by the use of a high resolution Varian CP-3800 Gas Chromatograph equipped with pulse flame photometric detector (PFPD) in 32 soils and 64 drinking water samples from 16 cocoa farms in the Dormaa West District of Ghana.Results: Four organophosphorus residues were detected in the soil and water samples at varying concentrations. The organophosphorus residues detected in soil samples were chlorpyrifos (0.01-0.04 mg/kg), profenofos (0.02-0.04 mg/kg) and pirimiphos-methyl (0.01-0.04 mg/kg) while the organophosphorus residues recorded in the water samples were chlorpyrifos (0.01-0.05 µg/L), diazinon (0.01-0.04 µg/L) and pirimiphos-methyl (0.01-0.03 µg/L). The concentrations of organophosphorus pesticide residues in the soil samples analysed from the various sites were generally below and within US MRLs for agricultural soils. However, mean concentrations of chlorpyrifos and pirimiphos-methyl recorded at Nkrankwanta (S1) were found to be above their respective US MRLs for agricultural soils. The trends of organophosphorus pesticide residues in the water samples analysed from the various distances to cocoa farms decreased with increase in distance to cocoa farm (ranking; 0-15 > 16-30 > above 30 m). All organophosphorus pesticide residues recorded in the water samples from the various sites within the various distances were below and within their respective WHO MRLs for drinking water except chlorpyrifos at Diabaa (S2) and Kwakuanya (S4) at distance 16-30 m and diazinon at Kwakuanya (S4) at a distance 0-15 m which exceeded their WHO MRLs. There were no significant (p > 0.05) sites differences in mean values of pesticide residues detected in soils and water samples. Conclusions:The presence of organophosphorus in the samples analysed was an indication of the use of the pesticides by cocoa farmers in the study area to control pest and diseases. The pesticide residues in the soil poses danger to soil organisms as well as contaminate surrounding water bodies through runoff and leaching. In addition, there is the likelihood of translocation of these residues from the soil into the cocoa beans and other crops (like vegetables that are commonly intercropped with cocoa) through the root system, thereby posing health risks to consumers. Chlorpyrifos and diazinon concentrations in drinking water exceeded their respective WHO MRLs at some sampled sites and may pose health hazard to farmers' household and the communities.

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Environmental impacts of cocoa production and processing in Ghana: life cycle assessment approach

Cited by 147 publications

References 4 publications

Life cycle assessment of cassava flour production: A case study in Southwest Nigeria

Life cycle assessment of cassava flour production: A case study in Southwest Nigeria

Applying life cycle management of colombian cocoa production

Organophosphorus pesticide residues in soils and drinking water sources from cocoa producing areas in Ghana

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