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Natural Hazards

, Volume 56, Issue 1, pp 81–91 | Cite as

Below-thunderstorm rain scavenging of urban aerosols in the health hazardous modes

  • D. M. ChateEmail author
Original Paper

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.

Keywords

Health impact Urban aerosol Respiratory system Scavenging coefficient 

Notes

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.

References

  1. Andronache C (2004) Diffusion and electric charge contributions to below-cloud wet removal of atmospheric ultra-fine aerosol particles. J Aero Sci 35:1467–1482Google Scholar
  2. 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/
  3. Brunekreef B, Forsberg B (2005) Epidemiological evidence of effects of coarse airborne particles on health. Eur Respir J 26:309–318CrossRefGoogle Scholar
  4. Byrne MA, Jennings SG (1993) Scavenging of sub micrometer aerosol particles by water drops. Atmos Environ 27A:2099–2105Google Scholar
  5. Bytnerowicz A, Omasa K, Paoletti E (2007) Integrated effects of air pollution and climate change on forests: a northern hemisphere perspective. Environ Pollut 147:438–445CrossRefGoogle Scholar
  6. Chate DM (2005) Study of scavenging of submicron size aerosol particles by thunderstorm rain events. Atmos Environ 39(35):6809–6819CrossRefGoogle Scholar
  7. 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 ppGoogle Scholar
  8. 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 CrossRefGoogle Scholar
  9. Chate DM, Devara PCS (2009) Acidity of raindrop by uptake of gases and aerosol pollutants. Atmos Environ 43:1571–1577CrossRefGoogle Scholar
  10. Chate DM, Pranesha TS (2004) Field studies of scavenging of aerosols by rain events. J Aerosol Sci 35:695–706CrossRefGoogle Scholar
  11. Chate DM, Rao PSP, Naik MS, Momin GA, Safai PD, Ali K (2003) Scavenging of aerosols and their chemical species by rain. Atmos Environ 37:2477–2484CrossRefGoogle Scholar
  12. 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):642CrossRefGoogle Scholar
  13. 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 CrossRefGoogle Scholar
  14. Davenport HM, Peters LK (1978) Field studies of atmospheric particulate concentration changes during precipitation. Atmos Environ 12:997–1008CrossRefGoogle Scholar
  15. Dockery DW, Stone PH (2007) Cardiovascular risks from fine particulate air pollution. NEJM 356:511–513CrossRefGoogle Scholar
  16. 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):1071–1092CrossRefGoogle Scholar
  17. Feng J (2007) A 3-mode parameterization of below-cloud scavenging of aerosols for use in atmospheric dispersion models. Atmos Environ 41:6808–6822CrossRefGoogle Scholar
  18. 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 28:2335–2342CrossRefGoogle Scholar
  19. Heintzenberg J (1989) Fine particles in the global troposphere: a review. Tellus 41B:149–160CrossRefGoogle Scholar
  20. Hind WC (1999) Aerosol technology: properties, behavior, and measurement of airborne particles. Wiley, New York, pp 111–170Google Scholar
  21. 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)Google Scholar
  22. Jacob DJ (1999) Introduction to atmospheric chemistry. Princeton University Press, Princeton, p 264Google Scholar
  23. Jaenicke R (1984) Physical aspects of atmospheric aerosol. In: Gerbard HE, Deepak A (eds) Aerosols and their climatic effects. A. Deepak, Hampton, pp 7–34Google Scholar
  24. Jaenicke R (1993) Tropospheric aerosols in aerosol-cloud-climate interactions. In: Hobbs PV (ed). Academic Press, San Diego, pp 1–31Google Scholar
  25. 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 36:913–924CrossRefGoogle Scholar
  26. 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 37:3605–3613CrossRefGoogle Scholar
  27. Maria SS, Russell LM (2005) Organic and inorganic aerosol below-cloud scavenging by 20 suburban New Jersey Precipitation. Environ Sci Technol 39(13):4793–4800CrossRefGoogle Scholar
  28. McGann BT, Jennings SG (1991) The efficiency with which drizzle and precipitation size drops collide with aerosol particles. Atmos Environ 25A:791–799Google Scholar
  29. Murugvel P, Chate DM (2009) Generation and growth of aerosols over Pune, India. Atmos Environ 43:820–828CrossRefGoogle Scholar
  30. 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 407:527–540CrossRefGoogle Scholar
  31. 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 287:1132–1141CrossRefGoogle Scholar
  32. 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 109:71–77CrossRefGoogle Scholar
  33. 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 33:983–997CrossRefGoogle Scholar
  34. Schwartz J, Dockery DW, Neas LM (1996) Is daily mortality associated specifically with fine particles? J Air Waste Manag Assoc 46:927–939Google Scholar
  35. 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):S65Google Scholar
  36. Seinfeld JH, Pandis SN (2006) Atmospheric chemistry and physics. Wiley, New York, p 1326Google Scholar
  37. 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 57:2118–2134CrossRefGoogle Scholar
  38. UNEP (2002) The Asian brown cloud. UNEP Assessment ReportGoogle Scholar
  39. 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/ Google Scholar
  40. Whitby T, Clark WE (1966) Electrical aerosol particle counting and size distribution measuring system for the 0.015 to 1 μm size range. Tellus 18:573–586CrossRefGoogle Scholar
  41. WHO (2000) Air quality guide-lines for Europe. 2nd edn, WHO Regional Publications European Series, No. 91, KopenhagenGoogle Scholar
  42. 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 2003Google Scholar
  43. WHO (2006) WHO air quality guidelines for particulate matter, ozone, nitrogen dioxide and sulphur dioxide—global update 2005—Summary of Risk Assessment, GenevaGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Indian Institute of Tropical MeteorologyPuneIndia

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