Impact and Correlation of Environmental Conditions on Pollen Counts in Karachi, Pakistan

  • Anjum Perveen GS PM Mail Centre for Plant Conservation, University of Karachi, Karachi, Pakistan.
  • Muneeba Khan GS PM Centre for Plant Conservation, University of Karachi, Karachi, Pakistan.
  • Shaista Zeb GS PM Department of Botany, University of Karachi, Karachi, Pakistan.
  • Asif Ali Imam GS PM Aga Khan University Hospital, Karachi Pakistan.
Keywords:
Airborne, Allergic rhinitis, Conditions, Karachi, Pollen

Abstract

A quantitative and qualitative survey of airborne pollen was performed in the city of Karachi, and the pollen counts were correlated with different climatic conditions. The aim of the study was to determine the possible effect of meteorological factors on airborne pollen distribution in the atmosphere of Karachi city. Pollen sampling was carried out by using Burkard spore Trap for the period of August 2009 to July 2010, and a total of 2,922 pollen grains/m(3) were recorded. In this survey, 22 pollen types were recognized. The highest pollen count was contributed by Poaceae pollen type (1,242 pollen grains/m(3)) followed by Amaranthaceae/Chenopodiaceae (948 pollen grains/m(3)), Cyperus rotundus (195 pollen grains/m(3)) and Prosopis juliflora (169 pollen grains/m(3)). Peak pollen season was in August showing a total of 709 pollen grains/m(3) and lowest pollen count was observed in January-2010. Pearson's chi-square test was performed for the possible correlation of pollen counts and climatic factors. The test revealed significant positive correlation of wind speed with pollen types of Amaranthaceae/Chenopodiaceae; Brassica campestris; Asteraceae; and Thuja orientalis. While the correlation of "average temperature" showed significant positive value with Asteraceae and Tamarix indica pollen types. Negative correlation was observed between humidity/ precipitation and pollen types of Brassica campestris; Daucus carota; Ephedra sp.; and Tamarix indica. In the light of above updated data one could identify various aeroallergens present in the air of Karachi city.

References

1. D'Amato G, Cecchi L, Bonini S, Nunes C, Annesi-Maesano I, Behrend H, et al. Allergenic pollen and pollen allergy in Europe. Allergy 2007; 62(9):976-90.
2. Mandal J, Chakraborty P, Roy I, Chatterjee S, and Gupta- Bhattacharya S. Prevalence of allergenic pollen grains in the aerosol of the city of Calcutta, India: A two year study. Aerobiologia 2008; 24:151-64.
3. Ciprandi G, Tosca MA, Marseglia GL, Klersy C.Relationships between allergic inflammation and nasal airflow in children with seasonal allergic rhinitis. Ann Allergy Asthma Immunol 2005; 94(2):258-61.
4. D'Amato G1, Spieksma FT, Liccardi G, Jäger S, Russo M, Kontou-Fili K, et al. Pollen related allergy in Europe. Allergy 1998; 53(6):567-78.
5. Puc M, Wolski T. Betula and Populus pollen counts and meteorological conditions in Szczecin, Poland. Ann Agric Environ Med 2002; 9(1):65-9.
6. Bianchi MM, Olabuenaga SE. A 3-year airborne pollen and fungal spores record in San Carlos de Bariloche, Patagonia, Argentina. Aerobiologia 2006; 22:247-57.
7. Beggs PJ. Adaptation to impacts of climate change on aeroallergens and allergic respiratory diseases. Int J Environ Res Publ Health 2010; 7(8):3006-21.
8. Chapman JA, Williams S. Aeroallergens of the Southeast Missouri area, a report of skin test frequencies and air sampling data. Ann Allergy 1984; 52(6):411-7.
9. Ricketti AJ Allergic rhinitis. In Patterson R, editors).Allergic diseases: Diagnosis and management (4th ed.). JB Lippincott, Philadelphia; 1993:225–53.
10. Erkara IP, Cingi C, Ayranci U, Gurbuz KM, Pehlivan S, Tokur S. Skin prick test reactivity in allergic rhinitis patients to airborne pollens. Environ Monit Assess 2009; 151(1-4):401-12.
11. Kazmi S, Qaiser M, Ali SI. A preliminary study of airborne pollen grains in Karachi. Pak J Bot 1984; 16(1) 65-74.
12. Perveen A, Qaiser M, Sad-ul-Islam M. Airborne pollen survey of Karachi and adjacent areas in relation to allergy. World Appl Sci J 2007; 2:289-98.
13. Waqar MA, Hasnain SM, Khan M. Airborne pollen survey in Karachi: A coastal city in Sindh Province of Pakistan. Ind J Aerobio 2010; 23:7-17.
14. Anonymous. Airborne pollens and spores: A guide to trapping and counting. British Aerobiology Federation, Aylesford 1995.
15. Smith EG. Sampling and Identifying Allergenic Pollens and Molds. An illustrated identification manual for air samplers. Blewstone Press, San Antonio 1990.
16. Nayar TS. Pollen Flora of Maharashtra State, India. Jawahar Offset Press, New Delhi 1990.
17. Hyde HA. Grass pollen in Great Britin. Acta Allergol 1952;5(2):98-112.
18. Hyde HA, Williams, DA. Dirurnal variation in the incidence of grass pollen. New Phytol 1945; 44(1):83-94.
19. Freidhoff LR, Ehrlich-Kautzky E, Grant JH, Meyers DA, Marsh DG. Study of the human immune response to Lolium perenne (rye) pollen and its components, Lol p I and Lol p II (rye I and rye II). I. Prevalence of reactivity to the allergens and correlations among skin test, IgE antibody, and IgG antibody data. J Allergy Clin Immunol 1986; 78(6):1190-201.
20. Andersson K, Lidholm J. Characteristics and immunobiology of grass pollen allergens. Int Arch Allergy Immunol 2003; 130(2):87-107.
21. Singh AB, Kumar P. Common environmental allergens causing respiratory allergy in India. Indian J Pediatr 2002;69(3):245-50.
22. Boral D, Chatterjee S, Bhattacharya K. The occurrence and allergising potential of airborne pollen in west Bengal, India. Ann Agric Environ Med 2004; 11(1):45-52.
23. Killian S, McMichael J. The human allergens of mesquite (Prosopis juliflora). Clin Mol Allergy 2004; 2(1):8.
24. Waqar MA, Khan M, Saleem A, Hasnain SM. Possible effects of cultivated plants in the development of allergy in population of Sindh, Pakistan. J Chem Soc Pak 2010;32(1):95-100.
25. Singh BP1, Verma J, Rai D, Sridhara S, Gaur SN, Gangal SV. Immunobiochemical characterization of Brassica campestris pollen allergen. Int Arch Allergy Immunol 1995;108(1):43-8.
26. Bhattacharya P (Sasmal), Pal JK. Scope of research on pollen grains in Arambagh region of Hooghly District (India) with reference to allergic disorders. Int J Curr Sci 2013; 8:E09-15.
27. Carinanos P, Casares-Porcel, M. Urban green zones and related pollen allergy: A review. Some guidelines for designing spaces with low allergy impact. Landsc Urban Plan 2011; 101:205-14.
28. Galdi E, Perfetti L, Calcagno G, Marcotulli MC, Moscato G.Exacerbation of asthma related to Eucalyptus pollens and to herb infusion containing Eucalyptus. Monaldi Arch Chest Dis 2003; 59(3):220-1.
29. Karmakar PR, Chatterjee BP. Isolation and characterization of two IgE-reactive proteins from Azadirachta indica pollen. Mol Cell Biochem 1994; 131(1):87-96.
30. Bist A, Kumar L, Roy I, Ravindran P, Gaurs SN, Singh AB.Clinico-immunologic evaluation of allergy to Himalayan tree pollen in atopic subjects in India--a new record. Asian Pac J Allergy Immunol 2005; 23(2-3):69-78.
31. Bergmann K, Zuberbier T, Augustin J, Mücke H, Straff W.Climate change and pollen allergy: cities and municipalities should take people suffering from pollen allergy into account when planting in public spaces. Allergo J 2012;21(2):103-7.
32. Kiotseridis H, Cilio CM, Bjermer L, Tunsäter A, Jacobsson H, Dahl Å. Grass pollen allergy in children and adolescents- symptoms, health related quality of life and the value of pollen prognosis. Clin Transl Allergy 2013; 3:19-30.
33. Chauhan SVS, Goyal R. Pollen calendar of Agra city with special reference to allergenic significance. J Environ Biol 2006; 27: 275-81.
34. Rao, TA, Siddiqui BA, Shaikh MA, Ahmed M, Shaikh AH, Ahmed F. Dynamics of some common epidemics in Karachi, Pakistan. J Pak Med Assoc 2011; 61(11): 1072-9.

How to Cite
1.
Perveen A, Khan M, Zeb S, Imam AA. Impact and Correlation of Environmental Conditions on Pollen Counts in Karachi, Pakistan. Iran J Allergy Asthma Immunol. 14(1):83-90.
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