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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in rivista anno 2010

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Spatial distribution of urban air pollution in Lanzhou, China

Anno di pubblicazione: 2010

Autori: Costabile, F., Bertoni , G., De Santis, F., Bellagotti, R., Ciuchini, C., Vichi, F., Allegrini, I.

Affiliazioni autori: Istituto sull'Inquinamento Atmosferico

Autori CNR:

  • IVO ALLEGRINI
  • GIULIANO BERTONI
  • FRANCESCA COSTABILE
  • FRANCO DE SANTIS
  • FRANCESCA VICHI

Lingua: inglese

Abstract: Urban air quality, and its variability in space and time, is a critical issue for human exposure and health related studies. In this work, we investigated the intra-urban distribution of SO2, NOx, NO2, Benzene, Toluene, and Xylenes in ambient air in one of the world's most polluted cities, Lanzhou, China. Measurements were contemporarily carried out at forty locations in four seasonal campaigns during the period 2005-2006. Diffusive samplers allowing a sampling period of one month were used. As a general finding, the selected air pollutant concentrations often exceeded the EU limit values, and varied significantly with space, time, and proximity to relevant point emission sources. A statistical analysis revealed that monthly air pollutant concentrations were normally distributed in space. This suggests that the spatial distribution of urban air pollution was governed by the spatial diffusion of emission sources, at least for its apparent average behaviour. This result might be relevant to link urban air quality measurements and human exposure assessment. To gain insights into the properties of the urban air pollution distribution in space, makes the assessment of homogeneous areas of air pollution in the urban area less critical - and, consequently, allows a proper selection of the sites where to monitor air quality for health-effects studies.

Lingua abstract: inglese

Pagine da: 8

Pagine a: 15

Pagine totali: 8

Rivista:

The Open environmental pollution & toxicology journal Bentham Science Publishers
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 1876-3979

Numero volume: 2

DOI: 10.2174/1876397901002010008

Referee: Sė: Internazionale

Parole chiave:

  • Spatial distribution
  • frequency distributions
  • gaseous air pollutants
  • China
  • diffusive sampling

URL: http://benthamscience.com/open/openaccess.php?toeptj/articles/V002/8TOEPTJ.htm

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Allegati: Spatial Distribution of Urban Air Pollution in Lanzhou, China (application/pdf)

 
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