Biomonitoring of airborne heavy metals along a major road in Accra, Ghana

Affum, H. A.; Oduro-Afriyie, K.; Nartey, Vincent Kodzo; Adomako, Dickson; Nyarko, B.J.B.

doi:10.1007/s10661-007-9701-7

Cited by 19 publications

(8 citation statements)

References 17 publications

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“…This confirms the Pb levels of vegetables analyzed previously in Addis Ababa's urban vegetable farming sites (Weldegebriel et al 2012) and with results reported from other African cities (Muchuweti et al 2006;Odai et al 2008;Lente et al 2012). According to Hamilton et al (2005), plant roots can adsorb Pb but may not translocate it to shoots, a possibility is that like in Ghana, high Pb levels on wastewater as well as control sites (groundwater irrigated urban farms) are attributable more to vehicular exhaust fumes (Affum et al 2008) than to irrigation water. In fact, high soil pH, clay and organic matter content are not supporting Pb uptake via roots.…”

Section: Heavy Metals In Vegetablesmentioning

confidence: 99%

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

et al. 2017

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Background: Wastewater irrigation for vegetable production is a highly prevalent practice in Addis Ababa and a number of articles have been published on wastewater-irrigated soils and vegetables contaminated with heavy metals. However, to the best of our knowledge, an insight into assessment of human health risks associated with the consumption of vegetable crops grown on wastewater-irrigated soils is non-existent in the city. Long-term effect of wastewater irrigation on the build-up of heavy metals in soils and selected vegetable crops in Addis Ababa urban vegetable farming sites (10) was evaluated. By calculating estimated daily intakes (EDIs) and target hazard quotients (THQs) of metals, health risk associated with the consumption of the analyzed vegetables was also evaluated. Results: The heavy metal concentrations in irrigation water and soils did not exceed the recommended maximum limits (RMLs). Moreover, Cd, Co, Cr, Cu, Ni and Zn concentrations in all analyzed vegetables were lower than the RML standards. In contrast, Pb concentrations were 1.4-3.9 times higher. Results of two way ANOVA test showed that variation in metals concentrations were significant (p < 0.001) across farming site, vegetable type and site x vegetable interaction. The EDI and THQ values showed that there would be no potential health risk to local inhabitants due to intake of individual metal if one or more of the analyzed vegetables are consumed. Furthermore, total target hazard quotients (TTHQs) for the combined metals due to all analyzed vegetables were lower than 1, suggesting no potential health risk even to highly exposed local inhabitants. Conclusions: There is a great respite that toxic metals like Pb and Cd have not posed potential health risk even after long term (more than 50 years) use of this water for irrigation. However, intermittent monitoring of the metals from irrigation water, in soil and crops may be required to follow/prevent their build-up in the food chain.

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Section: Heavy Metals In Vegetablesmentioning

confidence: 99%

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

et al. 2017

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“…Furthermore, air pollution from vehicular emissions is common, especially in the cities (e.g., Armah et al, 2010;Sulemana, 2012). These emissions have negative effects on human health (Carreras & Pignata, 2002;Affum et al, 2008;Armah et al, 2010).…”

Section: Literature Reviewmentioning

confidence: 99%

Do Perceptions About Local Environmental Quality Influence Self-Rated Health? Evidence from Ghana

Sulemana

2016

EMSD

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Although climate change and other global environmental problems are of top priority among world leaders (especially for those of developed countries), local environmental problems continue to bedevil people in developing countries like Ghana. In these countries, people continue to battle with poor air quality, poor water quality and poor sewage and sanitation. The purpose of this study is to examine the association between perceived local environmental quality and self-rated health among Ghanaians. Empirical results from ordered probit regressions based on data from the Wave 5 of the World Values Survey reveal a negative association between environmental quality and self-rated health. This study contributes to the literature on the relationship between environmental quality and health by adding further empirical evidence from a developing country perspective.

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“…Accra (5° 33′ N and 0° 13′ W) is the capital city and main administrative and commercial centre of Ghana. Accra's population is growing at a nearly 4% growth rate with attendant traffic congestion and air pollution [1]. Accra had a population of 1,659,000 in 2000, while the populations of the two urban centres adjacent to it were: Tema 506,000 and Ga 550,000 [2].…”

Section: Open Accessmentioning

confidence: 99%

“…The overall quality of public transport is poor, most vehicles are old, and maintenance standards are extremely low. High vehicle maintenance costs arising from poor road surfaces and limitations imposed on earnings by the acute congestion on the urban roads constrain the operators to invest in new public transit vehicles, a situation which has implications for the levels and extent of emissions of air pollutants and the effect on human health [1][2][3].…”

Section: Open Accessmentioning

confidence: 99%

“…Air quality in Accra is a health risk. The levels of heavy metals (Pb, Cr, Ni, Cd, and V), NO x , and SO 2 emitted from exhausts of motor vehicles along roads in Accra are relatively high compared to other roads where traffic volume is low [1]. Pb is persistent therefore it is not surprising that it exists in the roadside environment though it is no longer in use as an octane enhancer.…”

Section: Traffic Congestion and Health Risksmentioning

confidence: 99%

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A Systems Dynamics Approach to Explore Traffic Congestion and Air Pollution Link in the City of Accra, Ghana

2010

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Economic development and urbanization poses myriad challenges to transportation systems in relation to negative externalities such as traffic congestion and environmental health risks. Accra, the capital of Ghana, faces mounting urban planning problems, for example traffic congestion, air pollution, traffic safety, and land use planning, among others. The paper aims to provide a system dynamics perspective of the problems. Most of the drivers and cause-effect relationships of traffic congestion and its attendant air pollution are investigated and analyzed using causal loop diagrams. The paper further suggests mechanisms by which the negative externalities associated with road transport in the city of Accra can be addressed.

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Biomonitoring of airborne heavy metals along a major road in Accra, Ghana

Cited by 19 publications

References 17 publications

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

Heavy metal accumulation and health risk assessment in wastewater-irrigated urban vegetable farming sites of Addis Ababa, Ethiopia

Do Perceptions About Local Environmental Quality Influence Self-Rated Health? Evidence from Ghana

A Systems Dynamics Approach to Explore Traffic Congestion and Air Pollution Link in the City of Accra, Ghana

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