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Water vapor formation causing reversible aerodynamic effect on the distribution of aero-algal forms

Jogita T. Pandkar


Aerodynamic is a branch which deals with the study of takeoff and passive transport mechanism of bio-particles with the help of physical and mathematical modules. But there is not a single report on the aero-dynamic study with respect to manipulated meteorological condition. Nagpur being hottest during summer month, the frequency of using air coolers is very high. An air cooler is a device which evaporates water with the help of fan to bring down room temperatures which results into increase in room humidity very much. To study the effect of humidity on the distribution and occurrence of aero algal forms sampling was carried out at three different sites, fitted with air cooler, from April- Mid May, using Rotarod sampler. Total 84 algal forms were recorded from 46 samples collected from three different sites. Cyanophyta was found to be dominant, followed by Bacillariophyta, Chlorophyta and Euglenophyta respectively. Trentipholia is found to be dominant algal forms followed by Chroococcos, Microcystis, Aphanocapsa, Chlorella & Euglena respectively. Forms such as Chroococcidiopsis, Merismopedia, Aphanocapsa, Gleocapsa, Phormidium, Hormidium & Pinnularia were recorded in equal proportion. Forms such as Chlorella, Microcystis, Phormidium & Hormidium reported to be allergenic has been encountered. Irrespective of dry environmental condition with high temperature and low humidity (the condition considered to be favourable for dispersal of aero-algal forms, resulting into high concentration of air-borne algal flora) during sampling period, at all the three sites, minimum number of aero-algal forms were encountered due to increased humidity at the sampling sites. This can be due to manipulated micrometeorological conditions resulting into reversible aerodynamic effect on the aero- algal forms. Humidity of room air is increased by releasing water droplets in the atmosphere which act as a mode of reversible dispersion of aero-algal forms from higher level to the ground level, resulting into reduction in aero-algal counts at human breathing level. This finding, if experimented further with aero-algal and other bio-particles, can be good news for allergy patients.


Manipulated micrometeorological conditions; Humidity; Aero-algal counts; Air- cooler; Aerodynamic; Allergy.

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Anostasia Chrisostomou, Maria Moustake- goumi, Stefenos Sgardelis and Thomas Lamoras. Air- dispersed phytoplankton in Mediterranean River Reservoir system (Aliakmon- polyphytos, Grece). Journal of plankton research.; 31(8): 2009: 877-884, Print

Bernstein, I.L. and Safferman, R.S. Sensitivity of skin and bronchial mucosa to green algae. J Allergy. 28(3): 1966; 166-173, Print

Bernstein, I.L. and Safferman, R.S. Viable algae in house dust. Nature. 227: 1970; 851-852, Print

Broady, P. A. Wind dispersal of terrestrial algae at Signy Island, South Orkney Island, Br. Antarct. Surv. Bull. 48: 1979; 99- 102, Print

Broady, P. A. Taxonomic and ecological investigations of algae on steam-warmed soil on Mt Erebus, Rooss Island, Antarctica. Phycologia. 23: 1984; 257-271, Print

Broady, P. A. and smith. R. An initial report on an investigation of dispersal of algae in Southern Victoria land. BIOTAS Newsletter6: 1991; 5-7, Print

Broady P. A. diversity, distribution and dispersal of Antarctic terrestrial algae. Biodiversity Conservation. 5: 1996; 1207-1335, Print

Brown, R. M. Jr. Studies of Hawaiian fresh water and soil algae. I: the atmospheric dispersal of algae and fern spores across the Island of Oahu, Hawaii. In contributions to Phycology Ed. B. C. Parker and R. M. Brown, Jr. Allen Press, Lawrence, Kansas, U.S.A. 1963: 175-188, Print

Carson, J. L and Brown, R. M. Jr. The correlation of soil algae, airborne algae and fern spores with meteorological conditions on the island of Hawaii. Pacific Science. 30 (2): 1976; 197-205, Print

Devi A.C. and N.I. Sing .Relevance of Meteorological parameters on the occurrence of BGA in the air-borne dust in Imphal area.13th National Conf. Aerobiology, Inst. of Sci., Nagpur.2005: 6, Print

Ehresmann, D. W and Hatch, M. T. Effect of relative humidity on the survival of airborne unicellular algae. Appl. Microbial. 19: 1975; 352-357, Print

Goyal, S. K. Algae cause allergy. Science Reporter. 13: 1976; 364-366, Print

Jogita M. Patel and J. L. Tarar. Algal Air Spora of Nagpur through Rain water culturing. 13th National Conference on Aerobiology, Institute of Science Nagpur. 2005; abstract: D20, Print

JogitaT. Pandkar and J. L. Tarar. Vertical and Horizontal Aero-algal Sampling at Nagpur. Recent Trends and Strategic Development in Biosciences. 2008; Abstract, Print

JogitaT. Pandkar. Effect of humidity on the occurrence of aero-algal forms. The Botanique. 17 (2): 2013; 112-115, Print

Karnik, C. R. A contribution to the rain water forms and aero-sporaofJalgaon district. Science and Culture. 28: 1962; 475-476, Print

Mc Craw J. D. Soils of Taylor Dry Valleys, Victoria Land, Antarctina, with notes on soils from other localities in Victoria Land. NZ. J. Geol. Geophys. 10; 1967; 498-539, Print

Mittal A, Agarwal M. K, Goyal S.K. and Shivpuri D. N. Preliminary studies on the allergenic algae of Delhi

Metropolitan area, Botanical aspectis. Asp of Aller and Appl. Immunol. 6: 1973; 41-50, Print

Mittal A, Agarwal M.K., and Shivpuri D.N. Respiratory allergy to algae clinical aspects. Ann of Allergy. 42: 1979; 253 - 256, Print

N. K. Sharma, AshwaniRai and Surendra Sing. Ecography, ISSN 0906-7590. 29 (5): 2006; 766-772, Print

N. K. Sharma, Surendra Sing and AshwaniRai. Diversity and seasonal variation of viable algal particles in the atmosphere of a sub-tropical city in India.Environmental Research. 102(13): 2006; 252-259, Print

Nair, P.K. K, Sundarshan Kumar and B. N. Pande. Occurrence of algae in the aerial biomass at Bareilly & its bearing on human allergy. Curr. Sci.1983: 1199-1200, Print

Patil VS and Patil SR. Air Dispersion of Viable Algae in the extramural environment of Pune. International Journal of Advanced Research. 2(4) : 2014; 509-514, Print

Paul Gorham. R & Carmichael, W.W. Phytotoxins from blue- green algae. Pure & Appl. Chem. 52: 1979 ; 165-174, Print

Perkins W.A (1957) Therotarod sampler. 2nd semi-annual Rep. Aerosol. Lab. StandfordUni, CLH. 186: 1957; 1-66, Print

R. Troma, D. Recio, I. Silva and A. F. Munoz. A quantitative investigation of air-borne algae and lichen sporidia obtained from pollen traps in south-west spain. European Journal of Phycology. 36(4): 2001; 385-390, Print

Rosas. J, Roy-Ocotla. G, Mosino. P, Baez. A and Rivera. L. Abundance and heterogeneity of algae in the Mexico City atmosphere. Geofis. Int. 26: 1987; 359- 373, Print

Rosas I, Roy-Ocatla G, and Carrera J. Meteorological effects on variation of airborne algae in Mexico, Int. J. Biomet. 33: 1989; 173-179, Print

Santra S.C. Airborne Algae of Calcutta Metropolis, Phykos.1987:71-74. , Print

Schilichting, H.E. Jr. Meteorological Conditions affecting the dispersal of airborne algae and protozoa. Lloydia. 27(1): 1964; 64-78, Print

Schilichting, H. E. Jr. a. A preliminary study of algae and protozoa in sea foam. Bot. Marina. 14: 1971; 24-29, Print

Schilichting, H. E. Jr. b. Evaluation of biological requirements in a atmospheric monitoring system: Algae and protozoa in the atmosphere U.S, T B P Aerobiology Handbook No. 1 Univ. Michigan Ann. Arbor. 1971: 16-18, Print.

Schilichting, H. E. Jr. a. The survival of some fresh water algae under extreme environmental conditions. Trans. Amer. Microscop. Soc. 93: 1974; 610-613, Print

Schlichting, H. E. Jr, Speziale, B. J and Zink, R. M. Dispersal of algae and protozoa by Antarctic flying birds. Antarct. J. V. S. 13: 1978; 147-149, Print

Shenoi M. M and Ramlingam A. airspora of a sorghum field at Mysore. J. Palynology. XII (1&2): 1976; 42-54, Print

Sudharshankumar, P.K.K. Nair and B.N. Pandey.Daily census of airborne algae at Bareilly.New Botanist. 11(2): 1984; 161-168, Print

Tilak. S. T. Aerophycology. Ind. Jr. Aerobiol. spl.vol: 1992; 11-22, Print

Wharton R. A, Vinyard W.C, Parker B. C, Simmons G. M and Seaburg K. G. Algae in cryoconite holes on Canada glacier in southern victoria land, Antarctica. Phycologia. 20: 1981; 208-211, Print

Wharton R. A and Vinyard W. C. Distribution of snow and ice algae in western north America, Madrono. 30: 1983; 201-209, Print

Woodcook, A. H. Note concerning human respiratory irritation associated with high concentration of plankton with mass mortality of marine organisms. Jr. Mar. res. 7: 1948; 56-62, Print

Wuthrich, M. and Matthey, W. The diatoms of the “Tourbiere du Cachot” peat bog (Sziss Jura Mountains), III. Transport of diatoms by wind, waterbirds and aquatic insects. SchweizrischeZeitschrift fur Hydrobiologia. 42: 1981; 276-284, Print.



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