Abstract
A very high number concentration of aerosols in urban locations has a wide impact on health and ecosystem. The evolutions of urban aerosol distributions at elapse-time 30 and 60 min are simulated at rainfall rates, 0.5 and 0.9 mm h−1 applying scavenging coefficients to initial aerosols number concentrations (before rain). We show how thunderstorm rain scavenges number concentrations of urban aerosols in the ultrafine and fine modes. Elapsed-time evolutions of urban aerosols presented in this work show washout of about 50–60 and 70–80% number concentrations of particles in the diameter range 0.02 μm ≤ D p ≤ 0.1 μm after 30 and 60 min of thunderstorm rain when compared to initial number concentrations (before rain). Assuming 37 and 24% Sulfate and Organic Carbon particles in aerosol distributions in the urban environment and by applying scavenging coefficients to these initial number concentrations, elapse-time evolutions after 30 and 60 min of thunderstorm rain are presented in this work. The health impact is addressed in terms of depositions of particles within respiratory system by deposition fractions as a function of particle size. For D p ≤ 0.1 μm, 33 and 41% of initial number concentrations of Sulfate and Organic Carbon particles deposits within respiratory system. Whereas elapsed-time evolutions show 60 and 80% cleansing of initial number concentrations of Sulfate and Organic Carbon particles after 30 and 60 min of thunderstorm rain.
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Andronache C (2004) Diffusion and electric charge contributions to below-cloud wet removal of atmospheric ultra-fine aerosol particles. J Aero Sci 35:1467–1482
Andronache C, Grönholm T, Laakso L, Phillips V, Venäläinen A (2006) Scavenging of ultrafine particles by rainfall at a boreal site: observations and model estimations. Atmos Chem Phys Discuss 6:3801–3844. www.atmos-chem-phys-discuss.net/6/3801/2006/
Brunekreef B, Forsberg B (2005) Epidemiological evidence of effects of coarse airborne particles on health. Eur Respir J 26:309–318
Byrne MA, Jennings SG (1993) Scavenging of sub micrometer aerosol particles by water drops. Atmos Environ 27A:2099–2105
Bytnerowicz A, Omasa K, Paoletti E (2007) Integrated effects of air pollution and climate change on forests: a northern hemisphere perspective. Environ Pollut 147:438–445
Chate DM (2005) Study of scavenging of submicron size aerosol particles by thunderstorm rain events. Atmos Environ 39(35):6809–6819
Chate DM (2006) Study of collision efficiencies of water drops, scavenging coefficients and evolutions of atmospheric aerosol size distribution by rain event. PhD Thesis, 189 pp
Chate DM, Devara PCS (2005) Parametric study of scavenging of atmospheric aerosols of various chemical species during thunderstorm and non thunderstorm rain events. J Geophys Res 110:D2308. doi:10.1029/2005JD006406
Chate DM, Devara PCS (2009) Acidity of raindrop by uptake of gases and aerosol pollutants. Atmos Environ 43:1571–1577
Chate DM, Pranesha TS (2004) Field studies of scavenging of aerosols by rain events. J Aerosol Sci 35:695–706
Chate DM, Rao PSP, Naik MS, Momin GA, Safai PD, Ali K (2003) Scavenging of aerosols and their chemical species by rain. Atmos Environ 37:2477–2484
Chen LH, Knutsen SF, Beeson L, Ghamsary M, Shavlik D, Petersen F, Abbey D (2005) The association between ambient particulate air pollution and fatal coronary heart disease among persons with respiratory symptoms/disease. Ann Epidemiol 15(8):642
Christian HJ, Blakeslee RJ, Boccippio DJ, Boeck WL, Buechler DE, Driscoll KT, Goodman SJ, Hall JM, Koshak WJ, Mach DM, Stewart MF (2003) Global frequency and distribution of lightning as observed from space by the Optical Transient Detector. J Geophys Res 108(D1):4005. doi:10.1029/2002JD002347
Davenport HM, Peters LK (1978) Field studies of atmospheric particulate concentration changes during precipitation. Atmos Environ 12:997–1008
Dockery DW, Stone PH (2007) Cardiovascular risks from fine particulate air pollution. NEJM 356:511–513
Dominici F, McDermott A, Daniels M, Zeger SL, Samet JM (2005) Revised analyses of the national morbidity, mortality, and air pollution study: mortality among residents\of 90 cities. J Toxicol Environ Health-Part a-Curr Issues 68(13–14):1071–1092
Feng J (2007) A 3-mode parameterization of below-cloud scavenging of aerosols for use in atmospheric dispersion models. Atmos Environ 41:6808–6822
Garcia NPJ, Garcia BA, Fernadez Diaz JM, Rodriguez Brana MA (1994) Parametric study of selective removal of atmospheric aerosol by below-cloud scavenging. Atmos Environ 28:2335–2342
Heintzenberg J (1989) Fine particles in the global troposphere: a review. Tellus 41B:149–160
Hind WC (1999) Aerosol technology: properties, behavior, and measurement of airborne particles. Wiley, New York, pp 111–170
IPCC Climate Change (2007) The physical science basis. Contribution of Working Group I to the Fourth Assessment Report of the IPCC (ISBN 978 0521 88009-1 Hardback; 978 0521 70596-7 Paperback)
Jacob DJ (1999) Introduction to atmospheric chemistry. Princeton University Press, Princeton, p 264
Jaenicke R (1984) Physical aspects of atmospheric aerosol. In: Gerbard HE, Deepak A (eds) Aerosols and their climatic effects. A. Deepak, Hampton, pp 7–34
Jaenicke R (1993) Tropospheric aerosols in aerosol-cloud-climate interactions. In: Hobbs PV (ed). Academic Press, San Diego, pp 1–31
Jaworek A, Adamiak K, Balachandran W, Krupa A, Castle P, Machowski W (2002) Numerical simulation of scavenging of small particles by charged droplets. Aerosol Sci Technol 36:913–924
Laakso L, Grönholm T, Rannik Ü, Kosmale M, Fiedler V, Vehkamäki H, Kulmala M (2003) Ultrafine particle scavenging coefficients calculated from 6 years field measurements. Atmos Environ 37:3605–3613
Maria SS, Russell LM (2005) Organic and inorganic aerosol below-cloud scavenging by 20 suburban New Jersey Precipitation. Environ Sci Technol 39(13):4793–4800
McGann BT, Jennings SG (1991) The efficiency with which drizzle and precipitation size drops collide with aerosol particles. Atmos Environ 25A:791–799
Murugvel P, Chate DM (2009) Generation and growth of aerosols over Pune, India. Atmos Environ 43:820–828
Pérez N, Castillo S, Pey J, Alastuey A, Viana M, Querol X (2008) Interpretation of the variability of regional background aerosols in the Western Mediterranean. Sci Total Environ 407:527–540
Pope CA III, Burnett RT, Thun MJ, Calle EE, Krewski D, Ito K, Thurston GD (2002) Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. J Am Med Assoc 287:1132–1141
Pope CA, Burnett RT, Thurston GD, Thun MJ, Calle EE, Krewski D, Godleski JJ (2004) Cardiovascular mortality and long-term exposure to particulate air pollution. Circulation 109:71–77
Salma I, Balashazy I, Hofmann W, Zaray G (2002) Effect of physical exertion on the deposition of urban aerosols in the human respiratory system. J Aerosol Sci 33:983–997
Schwartz J, Dockery DW, Neas LM (1996) Is daily mortality associated specifically with fine particles? J Air Waste Manag Assoc 46:927–939
Schwartz J, Laden F, Zanobetti A, Dockery DW (2001) Is there a threshold in the association of PM2.5 with daily deaths? Epidemiology 12(4):S65
Seinfeld JH, Pandis SN (2006) Atmospheric chemistry and physics. Wiley, New York, p 1326
Tinsley BA, Rohrbaugh RP, Hei M (2000) Effect of image charges on the scavenging of aerosol particles by cloud droplets and on droplet charging and possible ice nucleation processes. J Atmos Sci 57:2118–2134
UNEP (2002) The Asian brown cloud. UNEP Assessment Report
Wang X, Zhang L, Moran MD (2010) Uncertainty assessment of current size-resolved parameterizations for below-cloud particle scavenging by rain. Atmos Chem Phys Discuss 10:2503–2548. www.atmos-chem-phys-discuss.net/10/2503/2010/
Whitby T, Clark WE (1966) Electrical aerosol particle counting and size distribution measuring system for the 0.015 to 1 μm size range. Tellus 18:573–586
WHO (2000) Air quality guide-lines for Europe. 2nd edn, WHO Regional Publications European Series, No. 91, Kopenhagen
WHO (2003) Health aspects of air pollution with particulate matter, ozone and nitrogen dioxide. Report on a WHO Working Group. Bonn, Germany, 13–15 January 2003
WHO (2006) WHO air quality guidelines for particulate matter, ozone, nitrogen dioxide and sulphur dioxide—global update 2005—Summary of Risk Assessment, Geneva
Acknowledgments
Author expresses sincere gratitude to Prof. B. N. Goswami, Director, I.I.T.M., Pune (India), and to Dr. P. C. S. Devara, Head, PM & A, for their continuous support to scientific work.
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Chate, D.M. Below-thunderstorm rain scavenging of urban aerosols in the health hazardous modes. Nat Hazards 56, 81–91 (2011). https://doi.org/10.1007/s11069-010-9550-5
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DOI: https://doi.org/10.1007/s11069-010-9550-5