Abstract
Spatial and temporal variation of suspended particulate matter was measured in Ibadan, Nigeria during the raining and dry months of 2013 and 2014, respectively. Six different locations were considered, reflecting city-spread, population density, lifestyle, and vehicular- and industrial-related activities. Elemental characterisation of the samples were carried out using energy dispersive x-ray fluorescence (ED-XRF) spectroscopy, while the black carbon content was determined using an optical transmissometer. Backward trajectory analysis indicated that most air mass was of maritime origin except on few occasions that suggested the Sahara desert origin. Average PM2.5/PM10 ratio for the entire sampling period was 0.32 ± 0.04. This is slightly lower than the reported values in the coastal city of Lagos, partly because of more adequately paved and better road networks resulting in lower dust re-suspension and/or there are relatively finer fraction particulates from other sources, which might include marine, industrial, and secondary emission-related sources. Black carbon showed predominance in the fine fractions and was, majorly, of traffic origin. Major enriched elements of concern are S, Zn, As, and Pb aside from those of sea origin. Refuse burning was observed to be the principal source of Pb and Zn in all the sites except one, which showed major industrial-related activities source. This study will provide data for future measurement and modelling works as well as providing a benchmark for relevant agencies for policy making on setting emission standards for the country.
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Almeida, S., Silva, A., Freitas, M., Dzung, H., Caseiro, A., & Pio, C. (2013). Impact of maritime air mass trajectories on the western European coast urban aerosol. Journal of Toxicology and Environmental Health, Part A, 76(4–5), 252–262.
Almeida, S. M., Silva, A. V., & Sarmento, S. (2014). Effects of exposure to particles and ozone on hospital admissions for cardiorespiratory diseases in Setubal, Portugal. Journal of Toxicology and Environmental Health, Part A, 77, 837–848.
Asubiojo, O., Obioh, I., Oluyemi, E., Oluwole, A., Spyrou, N., Farooqi, A., Arshed, W., & Akanle, O. (1993). Elemental characterization of airborne particulates at two Nigerian locations during the harmattan season. Journal of Radioanalytical and Nuclear Chemistry, 167, 283–293.
Calvo, A., Alves, C., Castro, A., Pont, V., Vicente, A., & Fraile, R. (2013). Research on aerosol sources and chemical composition: past, current and emerging issues. Atmospheric Research, 120–121, 1–28.
Dockery, D., Pope, C., Xu, X., Spengler, J., Ware, J., Fay, M., Ferris, B., & Speizer, F. (1993). An association between air pollution and mortality in six U.S. cities. New England Journal of Medicine, 329(24), 1753–1759.
Draxler, R., & Rolph, G. (2012). Hysplit (hybrid single-particle lagrangian integrated trajectory) model access via noaa arl ready website. Silver Spring: NOAA, NOAA Air Resources Laboratory. Technical report. http://ready.arl.noaa.gov/HYSPLIT.php. Accessed 26 March 2014.
Farinha, M., Freitas, M., & Almeida, S. (2004). Air quality control monitoring at an urban and industrialized area. Joournal of Radioanalytical and Nuclear Chemistry, 259, 203–207.
Godson, R. A., & Zainab, O. U. (2013). Inhalable particulate matter burden in selected day-care centers in Ibadan, Nigeria. Nigeria International Journal of Environmental Monitoring and Analysis, 1(6), 296–301.
HEI (2000). Reanalysis of the Harvard six-cities study and the American cancer society study of particulate air pollution and mortality. Health Effects Institute, Technical report, a special report of the Institute’s particle epidemiology reanalysis project.
Hopke, P., Xie, Y., Raunemaa, T., Biegalski, S., Landsberger, S., Maenhaut, W., Artaxo, P., & Cohen, D. (1997). Characterization of the gent stacked filter unit PM10 sampler. Journal of Aerosol Science and Technology, 27, 726–735.
Jerrett, M. (2005). Spatial analysis of air pollution and mortality in Los Angeles. Epidemiology, 16, 727–736.
Klos, A., Rajfur, M., & Waclawek, M. (2011). Application of enrichment factor (EF) to the interpretation of results from the biomonitoring studies. Journal of Ecological Chemistry and Engineering S, 18(2), 171–183.
Mason, B., & Moore, C. (1982). Principles of geochemistry. New York: Willey. 344pp.
Obioh, I.B., Oluwole, A.F., Akeredolu, F.A. (1994). Lead emissions and source strength in Nigeria: 1998 inventory. In: Allen and Nriagu (eds.) Heavy metals in the environment. Toronto: CEP Publishers. Proceeding of an international conference. ISBN 0-905941-51-9, 271–274.
Obioh, I. B., Olise, F. S., Owoade, O. K., & Olaniyi, H. B. (2005). Chemical characterisation of suspended particulates along air corridors of motorways in two Nigerian cities. Journal of Applied Science, 5, 347–350.
Obioh, I. B., Ezeh, G. C., Abiye, O. E., Alpha, A., Ojo, E. O., & Ganiyu, A. K. (2013). Atmospheric particulate matter in Nigerian megacities. Journal of Toxicological and Environmental Chemistry, 95(3), 379–385.
Oluwole, A. F., Olaniyi, H. B., Akeredolu, F. A., Ogunsola, O. J., & Asubiojo, O. I. (1988). Determination of the environmental impact in the area of operation of West African Portland cement company (WAPCO). Ile-Ife: Obafemi Awolowo University. Technical report.
Oluyemi, E. O., Asubiojo, O. I., Oluwole, A. F., & Toussaint, C. J. N. (1994). Elemental concentrations and source identification of air particulate matter at a Nigerian site: a preliminary study. Journal of Radioanalytical and Nuclear Chemistry, 179(2), 187–194.
Owoade, O.K. (2006). Assessment of concentrations of air borne heavy metals in the workplace and of operational efficiency of a scrap iron and steel smelter. Ile-Ife: Obafemi Awolowo University PhD thesis.
Owoade, O. K., Fawole, O. G., Olise, F. S., Ogundele, L. T., Olaniyi, H. B., Almeida, M. S., Ho, M. D., & Hopke, P. K. (2013). Characterization and source identification of airborne particulate loadings at receptor site-classes of Lagos mega-city, Nigeria. Journal of the Air and Waste Management Association, 63(9), 1026–1035.
Pope, C. A., III, Thun, M. J., Namboodiri, M. M., Dockery, D. W., Evans, J. S., Speizer, F. E., & Heat, C. W., Jr. (1995). Particulate air pollution as a predictor of mortality in a prospective study of U.S. adults. American Journal of Respiratory and Critical Care Medicine, 151, 669–674.
Pope, C., Burnett, R., Thun, M., Calle, E., Krewski, D., Ito, K., & Thurston, G. (2002). Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. Journal of American Medical Association, 287(9), 1132–1141.
Putaud, J.-P., Raes, F., Van Dingenen, R., Bruggemann, E., Facchini, M.-C., Decesari, S., Fuzzi, S., Gehrig, R., Huglin, C., Laj, P., Lorbeer, G., Maenhaut, W., Mihalopoulos, N., Muller, K., Querol, X., Rodriguez, S., Schneider, J., Spindler, G., ten Brink, H., Torseth, K., & Wiedensohler, A. (2004). A European aerosol phenomenology2: chemical characteristics of particulate matter at kerbside, urban, rural and background sites in Europe. Journal of Atmospheric Environment, 38, 2579–2595.
Stohl, A. (1998). Computation, accuracy and applications of trajectories: a review and bibliography. Atmospheric Environment, 32, 947–966.
Taiwo, O. (2005). The case of Lagos air quality improvement project. Lagos: Lagos Metropolitan area Transport Authority (LAMATA). Technical report.
Taylor, S. (1964). Abundance of chemical elements in the continental crust: a new table. Geochimica et Cosmochimica, 28, 1273–1285.
USEPA. (2001). Criteria document on particulate matter, draft report. Washington DC: United States Environmental Protection Agency. Technical report.
USEPA. (2013). 40 CFR Parts 50, 51, 52, 53, and 58- national ambient air quality standards for particulate matter: final rule. Federal Register, 78, 3086–3286.
Van Dingenen, R., Raes, F., Putaud, J., Baltensperger, U., Carron, A., Facchini, M., Decesaric, S., Fuzzi, S., Gehrig, R., Hansson, H.-C., Harrison, R., Huglin, C., Jones, A., Laj, P., Lorbeer, G., Maenhaut, W., Palmgren, F., Quqrol, X., Rodriguez, S., Schneider, J., ten Brink, H., Tunved, P., Torseth, K., Wehner, B., Weingartner, E., Wiedensohler, A., & Wahlin, P. (2004). A European aerosol phenomenology-1: Physical characteristics of particulate matter at kerbside, urban, rural and background sites in Europe. Atmospheric Environment, 38, 2561–2577.
Vega, E. E. R., Sanchez, G., Ortiz, E., Chow, M. J., Watson, J., & Edgerton, S. (2002). Basic statistics of PM2.5 and PM10 in the atmosphere of Mexico City. Science of the Total Environment, 287, 167–176.
WHO. (2005). Air quality guidelines for particulate matter, ozone, nitrogen dioxide and sulphur dioxide. Geneva: World Health Organization. Technical report.
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The authors acknowledge Obafemi Awolowo University, Ile-Ife, Nigeria for the Carnegie female staff fellowship award granted one of them (G.O. AKINLADE); Department of Chemical and Bimolecular Engineering and Centre for Air Resources Engineering and Science, Clarkson University, Potsdam, NY, USA for the support in the XRF and black carbon analyses. FS OLISE appreciates C2TN, Portugal for the research visit granted G.O. AKINLADE.
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Akinlade, G.O., Olaniyi, H.B., Olise, F.S. et al. Spatial and temporal variations of the particulate size distribution and chemical composition over Ibadan, Nigeria. Environ Monit Assess 187, 544 (2015). https://doi.org/10.1007/s10661-015-4755-4
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DOI: https://doi.org/10.1007/s10661-015-4755-4