|Table of Contents|

Distribution Characteristics and Assessment of Minor Air Ion Concentration in Typical Functional Areas of Xi'an(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2010年第03期
Page:
297-
Research Field:
水资源与环境
Publishing date:

Info

Title:
Distribution Characteristics and Assessment of Minor Air Ion Concentration in Typical Functional Areas of Xi'an
Author(s):
LI Yan-peng1;  ZHANG Qian-long2;  ZHOU Hai-bo1
(1.School of Environmental Sciences and Engineering, Chang'an University, Xi'an 710054,Shaanxi, China; 2.School of Resource and Environment, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China)
Keywords:
air ion;  functional area;  polarity ratio;  assessment index;  air quality;  number density
PACS:
P427.3
DOI:
-
Abstract:
Number density of minor air ion in four typical functional areas(leisure resort, district of culture and education, traffic area and factory district)of Xi'an was measured in summer and autumn by DLY-2G air ion monitor. Spatial-temporal variations of number density of minor air cation and anion in different functional areas were studied, and then air quality was assessed. The result showed that daily variations of number density of minor air ion in typical functional areas of Xi'an were significant and diverse from each other, and appeared one-peak or double-peak curve; number density of minor air ions was higher in summer than that in autumn; distribution of number density of minor air ions was very different among the functional areas, number density of minor air anion was highest in leisure resort; compared with the method of polarity ratio, air ion assessment index was more reasonable to indicate air cleanliness.

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Last Update: 2010-09-20