[1]ZHANG Wen-jing,SUN Xian,WANG Qi,et al.Analysis on Air Pollution Meteorological Characters and Atmospheric Environment Capacity in Xi’an City[J].Research of Soil and Water Conservation,2012,19(05):257-261.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 05
Page number:
257-261
Column:
Public date:
2012-10-20
- Title:
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Analysis on Air Pollution Meteorological Characters and Atmospheric Environment Capacity in Xi’an City
- Author(s):
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ZHANG Wen-jing1, SUN Xian1, WANG Qi1, HU Lin1, DING Qi2
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1. Climate Center of Shaanxi Province, Xi’an 710014, China;
2. China Railway First Survey and Design Institute Group Ltd., Xi’an 710043, China
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- Keywords:
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air pollution; meteorological condition; atmospheric stability; environment capacity; Xi’an City
- CLC:
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X511
- DOI:
-
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- Abstract:
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The spatio-temporal distribution characteristics of three pollutants(SO2, NO2 and PM10) were analyzed by using environmental monitoring and meteorological data of Xi’an in 2010. A-P method was used to calculate atmospheric environmental capacity. The results showed that:(1) the major low altitude atmosphere in Xi’an was semi-stable or stable, and the pollutant concentration increased when stability frequency increased;(2) the wind speed affected the pollutant concentration dramatically, the pollutant concentration decreased with the increase of wind speed;PM10 was fairly positively interrelated with wind speed in the context of the strong wind and sand dust in spring;(3) the precipitation contributed very much to dilution effect, but the precipitation less than 1 mm increased the concentration of pollutants;the precipitation more than 10 mm didn’t dilute the concentration too much;(4) affected by the meteorological condition, utilization ratio of environmental capacity was overloaded due to pollutant discharge.