[1]
ACFA, (2008). Sulphur Reduction – The Key to Lower Vehicle Emissions. Asian Clean Fuels Association Monthly Publication Vol. 6, Issue 6 - Aug/Sept, 2008.
Google Scholar
[2]
ACGIH, (2005). Guide to Occupational Exposure Values "Notice of Intended Changes". American Conference of Governmental Industrial Hygienists In: MCDCP, (2006). Ambient Air Guidelines for H2S. Maine Centre for Disease Control and Prevention. Augusta, USA. Retrieved February 2, 2013, from: http://www.maine.gov/dep/waste/publications/documents/ambientairguidelines.pdf
Google Scholar
[3]
Akselsson C., Ardo J., Sverdrup H., Environmental Monitoring and Assessment. 98 (2004) 363-379.
Google Scholar
[4]
Barman S. C., Singh R., Negi, M. P. S., Bhargava S. K., Environ Monit. Asses 137 (2008) 495-504.
Google Scholar
[5]
Ettouney R. S., Zaki J. G., El-Rifiai M. A., Ettouney H. M., Toxicology and Environmental Chemistry 92(4) (2010) 655-668.
Google Scholar
[6]
Federal Environmental Protection Agency, (1991). Guidelines and Standards for Environmental Protection Control in Nigeria. In Ajayi, A. B. and Dosunmu, O. O. (2002). Environmental hazards of Importing Used Vehicles into Nigeria. Proceedings of International Symposium on Environmental Pollution Control and Waste Management (EPCOWM). (7-10) January 2002, Tunis, Tunisia. Pp. 521-532.
Google Scholar
[7]
Haywood J., Boucher O., Reviews of Geophysics 38(4) (2000) 513-54.
Google Scholar
[8]
Kalabokas P. O., Viras L. G., Repapis C., Global Nest Journal 1(3) (1999) 157-167.
Google Scholar
[9]
Lovblad G., Tarrason L., Tørseth K., Dutchak S. (Eds.) (2004). EMEP Assessment Report Part I, European Perspective, Retrieved July 15, 2013, from: http://www.emep.int
Google Scholar
[10]
Mortimore M. J. (ed) (1970). Zaria and its Region: A Nigerian Savanna City and its Environs. Department of Geography, Ahmadu Bello University Zaria. Occasional Paper No 4.
DOI: 10.2307/1159182
Google Scholar
[11]
Nellemann C., Goul Thomsen M., Water, Air, & Soil Pollution 128 (2001) 197-205.
DOI: 10.1023/a:1010318800180
Google Scholar
[12]
NPC, (2006). Population. National Population Commission Census Report. Nigerian Statistics Annual Report. Pp. 14 Retrieved May 22, 2012, from: http://www.nigerianstat.gov.ng/nbsapps/annual_reports/CHAPTER%202.pdf/
Google Scholar
[13]
Okunola O. J., Uzairu A., Gimba C. E., Ndukwe G. I., International Journal of Environment and Sustainability 1(1) (2012) 1-15.
Google Scholar
[14]
Ragini N., Chandrashekara M. S., Nagaiah N., Paramesh L., Toxicology and Environmental Chemistry 91(4) (2009) 605-609.
Google Scholar
[15]
Ramanathan V., Crutzen P. J., Kiehl J. K., Rosenfeld D., Science 294 (2001) 2119-2124.
DOI: 10.1126/science.1064034
Google Scholar
[16]
Riordan D., Adeeb F. (2004). Air Quality Monitoring for Sulphur Dioxide in Metropolitan Adelaide. Environment Protection Authority Document. Retrieved July 3, 2013 from: http://www.epa.sa.gov.au/xstd_files/Air/Report/so2_report.pdf
Google Scholar
[17]
Richards J. K. (2000). Control of Gaseous Emissions. United States Environmental Protection Agency Air Pollution Training Institute (USEPA APTI). Student Manual Course 415. Third Edition. Retrieved July 1, 2013, from: http://www.4cleanair.org/apti/415combined.pdf
Google Scholar
[18]
Schopp W., Posch M., Mylona S., Johansson M., Hydrology and Earth System Sciences 7 (2003) 436-446.
Google Scholar
[19]
Stoddard J. L., et al., Nature 401(6753) (1999) 575-578.
Google Scholar
[20]
Wang L. K., Pereira N. C., Hung Y. T. (2005). Advanced Air and Noise Pollution Control. Hand book of Environmental Engineering, Volume 2. Humana Press Inc. Totowa, NJ.
Google Scholar
[21]
WHO, (1981). Hydrogen Sulphide. World Health Organization, Environmental Health Criteria No. 19. Geneva.
Google Scholar
[22]
WHO, (2000). Air Quality Guidelines for Europe, Second Edition. WHO Regional Publications, European Series No. 91,Regional Office for Europe, Copenhagen. In Blair, L. (2003). Sulphur Dioxide: Environmental Effects, Fate and Behaviour. Alberta Environment. Retrieved July 4, 2013, from: http://environment.gov.ab.ca/info/library/6615.pdf
Google Scholar
[23]
WHO, (2003). Health Aspects of Air Pollution with Particulate Matter, Ozone and Nitrogen dioxide, Report on a WHO Working Group, Copenhagen, WHO Regional Office for Europe (document EUR/03/5042688), available from: http://www.euro.who. int/document/e79097.pdf
Google Scholar
[24]
WHO, (2005a). WHO Air Quality Guidelines Global Update. Report on a Working Group Meeting, Bonn, Germany, 18-20 October 2005, WHOLIS number E87950.
Google Scholar
[25]
WHO, (2005b). Hydrogen Sulphide. Geneva World Health Organization, Environmental Health Criteria, No. 19.
Google Scholar
[26]
WHO, (2006). Health Risks of Particulate Matter from Long-Range Transboundary Air Pollution. Joint WHO/Convention Task Force on the Health Aspects of Air Pollution, WHO Regional Office for Europe, European Centre for Environment and Health, Bonn Office, WHOLIS number E88189.
DOI: 10.1093/eurpub/cky212.603
Google Scholar
[27]
Wu C., Lin M., Feng C., Yang K., Lo Y., Lo J., Journal of Chromatography 996 (2003) 225-231. ( Received 04 September 2013; accepted 14 October 2013 )
Google Scholar