When Air Quality Becomes Deleterious—A Case Study for Kigali, Rwanda

Sascha M.  Henninger

doi:10.4236/jep.2013.48A1001

Sascha M. Henninger^*

Abstract:

Rwanda is a landlocked republic in Equatorial Africa. The capital Kigali (1°57'S, 30°04'E) can be mentioned as a typical African city due to its rising population and the rising rate of motorization. Different pollutants produced e.g. by a highusage rate of mopeds or open fireplaces burning wood for cooking and household chores could be detected. Climatological parameters as well as air pollutants were measured within the urban area. Additionally, highly frequented spatial and temporal mobile measurements of particulate matter were taken during different dry seasons regarding different conditions. These values indicated an urban heat island, which tended to rise for the last four decades. A temporary phenomenon for the air pollution indicators is visible during clear and calm weather situations, e.g. the distinctive relief caused an accumulation within small valleys called “Marais” in the night time. Unfortunately, these are the favourite places for living and agriculture. So there is no infrequence in values of PM₁₀ > 1.000 μg·m^-³. The origin of the different airborne particles was verified by using a scanning electron microscope and it could be mentioned that most particles were from the combustion of biomass and traffic.

Keywords: Urban Air Quality; Particulate Matter; Urban Climate; Mobile Measurements

Cite this paper: S. Henninger, "When Air Quality Becomes Deleterious—A Case Study for Kigali, Rwanda," Journal of Environmental Protection, Vol. 4 No. 8, 2013, pp. 1-7. doi: 10.4236/jep.2013.48A1001.

References

[1] K. Gwilliam, “Urban Transport in Developing Countries,” Transport Reviews, Vol. 23, No. 2, 2003, pp. 106-120. doi:10.1080/01441640309893

[2] X. Han and L. P. Naeher, “A Review of Traffic-Related Air Pollution Exposure Assessment Studies in the Developing World,” Environmental International, Vol. 32, No. 1, 2006, pp. 106-120. doi:10.1016/j.envint.2005.05.020

[3] G. Baumbach, U. Vogt, K. R. G. Hein, A. F. Oluwole, O. J. Ogunsola and H. B. Olaniyi, “Air Pollution in a Large Tropical City with a High Traffic Density—Results of Measurements in Lagos, Nigeria,” The Science of the Total Environment, Vol. 169, No. 1-3, 1995, pp. 25-31. doi:10.1016/0048-9697(95)04629-F

[4] S. Henninger, “Urban climate and air pollution in Kigali, Rwanda,” The 7th International Conference on Urban Climate, 29 June-3 July 2009, Yokohama, pp. 1038-1041.

[5] S. Henninger, “Air Quality Modifications within the Rwandan Capitel Kigali,” Berichte des Meteorologischen Instituts der Albert-Ludwig-Universitat Freiburg, Vol. 20, 2010, pp. 422-427.

[6] S. Henninger, “Does the Global Warming Modify the Local Rwandan Climate?” Natural Science, Vol. 5, No. 1A, 2013, pp. 124-129. doi:10.4236/ns.2013.51A019

[7] J. H. Van Wijnen, A. P. Verhoeff, H. W. Jans and M. Bruggen, “The Exposure of Cyclists, Car Driver and Pedestrians to Traffic-Related Air Pollutants,” International Archives of Occupational and Environmental Health, Vol. 67, No. 3, 1995, pp. 187-193.

[8] S. Henninger, “Local Climate Changes and the Spread of Malaria in Rwanda,” Health, Vol. 5, No, 4, 2013, pp. 728-734. doi:10.4236/health.2013.54096

[9] S. Henninger, “Biogenic Isoprene and Its Impact on Human Health in Dependence on Meteorological Conditions,” Journal of Environmental Protection, Vol. 3, No. 29, 2012, pp. 1206-1212. doi:10.4236/jep.2012.329138

[10] S. Henninger, “A Mobile Measuring Methodology to Determine near Surface Carbon Dioxide within Urban Areas,” In: D. Popovic, Ed., Air Quality—Models and Applications, 2011, InTech (Online), pp. 173-194.

[11] S. Haryono, A. Budihardjo and N. Hardyanti, “Black Carbon Concentration in Kitchens Using Fire-Wood and Kerosene Fuels,” Journal of Applied Sciences in Environmental Sanitation, Vol. 4, No. 1, 2009, pp. 55-62.

[12] World Health Organization (WHO), “Air Quality Guidelines for Particulate Matter, Ozone, Nitrogen Dioxide and Sulfur-Dioxide—Global Update 2005—Summary of Risk Assessment,” World Health Organization (WHO), Geneva, 2006, p. 22.

[13] J. Linden, “Urban Project—Urban Climate and Air Pollution in Ouagadougou, Burkina Faso,” IAUC Newsletter, No. 20, 2006, pp. 10-12.

[14] J. Linden, S. Thorsson and I. Eliasson, “Carbon Monoxide in Ouagadougou, Burkina Faso—A Comparison between Urban Background, Roadside and Intraffic Measurements,” Water, Air and Soil Pollution, Vol. 188, No. 1-4, 2008, pp. 345-353. doi:10.1007/s11270-007-9538-2

[15] K. Balakrishnan, J. Parikh, S. Sankar, R. Padmavathi, K. Srividya, V. Venugopal, S. Prasad and V. L. Pandey, “Daily Average Exposures to Respirable Particulate Matter from Combustion of Biomass Fuels in Rural Households of Southern India,” Environmental Health Perspectives, Vol. 110, No. 11, 2002, pp. 1069-1075. doi:10.1289/ehp.021101069

[16] A. L. Kousa, K. Oglesbyd, K. Koistinea, N. Kunzlib and M. Jantunena, “Exposure Chain of Urban PM2.5—Associations between Ambient Fixed Site, Residential Outdoor, Indoor, Workplace and Personal Exposure in Four European Cities in the EXPOLIS-Study,” Atmospheric Environment, Vol. 36, No. 18, 2002, pp. 3031-3039. doi:10.1016/S1352-2310(02)00232-7