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Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa

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dc.contributor.author Van Tienhoven, AM en_US
dc.contributor.author Zunckel, M en_US
dc.contributor.author Emberson, L en_US
dc.contributor.author Koosailee, A en_US
dc.contributor.author Otter, L en_US
dc.date.accessioned 2007-02-06T08:39:42Z en_US
dc.date.accessioned 2007-06-07T10:06:41Z
dc.date.available 2007-02-06T08:39:42Z en_US
dc.date.available 2007-06-07T10:06:41Z
dc.date.copyright en_US
dc.date.issued 2006-03 en_US
dc.identifier.citation Van Tienhoven, AM. et al. 2006. Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa. Environmental pollution, vol 140(2), pp 220-230 en_US
dc.identifier.issn 0269-7491 en_US
dc.identifier.uri http://hdl.handle.net/10204/1476 en_US
dc.identifier.uri http://hdl.handle.net/10204/1476
dc.description.abstract Surface ozone concentrations in southern Africa exceed air quality guidelines set to protect agricultural crops. This paper addresses a knowledge gap by performing a preliminary assessment of potential ozone impacts on vegetation in southern African. Maize (Zea mays L.) is the receptor of interest in the main maize producing countries, i.e. South Africa, Zambia and Zimbabwe. Surface ozone concentrations are estimated for the growing season (October to April) using photochemical modelling. Hourly mean modelled ozone concentrations ranged between 19.7 and 31.2 ppb, while maximums range between 28.9 and 61.9 ppb, and are near 30 ppb over South Africa and Zambia, while in Zimbabwe, they exceed 40 ppb and translate into monthly AOT40 values of over 3000 ppb h in five of the seven months of the growing season. This study suggests that surface ozone may pose a threat to agricultural production in southern African, particularly in Zimbabwe. en_US
dc.format.extent 732685 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.rights Copyright: 2006 Elsevier Science Ltd en_US
dc.source en_US
dc.subject Ground level ozone en_US
dc.subject Maize crop losses en_US
dc.subject Southern Africa en_US
dc.subject AOT40 exposure index en_US
dc.title Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa en_US
dc.type Article en_US
dc.identifier.apacitation Van Tienhoven, A., Zunckel, M., Emberson, L., Koosailee, A., & Otter, L. (2006). Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa. http://hdl.handle.net/10204/1476 en_ZA
dc.identifier.chicagocitation Van Tienhoven, AM, M Zunckel, L Emberson, A Koosailee, and L Otter "Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa." (2006) http://hdl.handle.net/10204/1476 en_ZA
dc.identifier.vancouvercitation Van Tienhoven A, Zunckel M, Emberson L, Koosailee A, Otter L. Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa. 2006; http://hdl.handle.net/10204/1476. en_ZA
dc.identifier.ris TY - Article AU - Van Tienhoven, AM AU - Zunckel, M AU - Emberson, L AU - Koosailee, A AU - Otter, L AB - Surface ozone concentrations in southern Africa exceed air quality guidelines set to protect agricultural crops. This paper addresses a knowledge gap by performing a preliminary assessment of potential ozone impacts on vegetation in southern African. Maize (Zea mays L.) is the receptor of interest in the main maize producing countries, i.e. South Africa, Zambia and Zimbabwe. Surface ozone concentrations are estimated for the growing season (October to April) using photochemical modelling. Hourly mean modelled ozone concentrations ranged between 19.7 and 31.2 ppb, while maximums range between 28.9 and 61.9 ppb, and are near 30 ppb over South Africa and Zambia, while in Zimbabwe, they exceed 40 ppb and translate into monthly AOT40 values of over 3000 ppb h in five of the seven months of the growing season. This study suggests that surface ozone may pose a threat to agricultural production in southern African, particularly in Zimbabwe. DA - 2006-03 DB - ResearchSpace DP - CSIR KW - Ground level ozone KW - Maize crop losses KW - Southern Africa KW - AOT40 exposure index LK - https://researchspace.csir.co.za PY - 2006 SM - 0269-7491 T1 - Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa TI - Preliminary assessment of risk of ozone impacts to maize (Zea mays) in Southern Africa UR - http://hdl.handle.net/10204/1476 ER - en_ZA


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