干旱区研究

Arid Zone Research ›› 2019, Vol. 36 ›› Issue (3): 734-742.doi: 10.13866/j.azr.2019.03.25

• Ecology and Environment • Previous Articles     Next Articles

Relationships Among O3,VOCs and NOx Concentrations over Kuitun City

GUO Yu-hong1, ZHU Qiao-qiao1,2,3, YANG Chun1, WANG Hai-lin1, ZHANG Xiao-xiao4, LIU Wen-jiang4, YANG Rong-jiang5, TIAN Qing5   

  1. 1. Master Station for Environmental Monitoring of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China;
    2. Zhejiang Province Center of Economic Information,Hangzhou 310006,Zhejiang,China;
    3. Postdoctoral Research Station of Environmental Science and Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China;
    4. National Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences, Urumqi 830011,Xinjiang,China;
    5. Kuytun Station of Environment Protection and Monitoring,Kuytun 833200,Xinjiang,China
  • Received:2018-02-27 Revised:2018-10-11 Published:2025-10-18

PDF (PC)

0

Like

Abstract: In this paper,the relationships among O3,VOCs and NOx concentrations over Kuytun City,Xinjiang,northwest China during the period of 2013-2015 were analyzed using the environmental monitoring data.Results showed that an apparent overload of O3 concentration occurred over Kuytun City.O3 concentration over the city was overloaded for 33,14 and 10 days during the period of 2013-2015,and the daily maximum concentrations of O3 were 0.457,0.396 and 0.385 mg·m-3,respectively.The heavy pollution of O3 occurred in summer,and the value of O3 concentration was 2.5 times higher than that in winter.The curve of diurnal variation of O3 pollution was reversely “U-shaped”,and the peak value occurred around 17:00 o’clock.The concentration of VOCs in summer was 3 times higher than that in winter,and there was no significant diurnal variation.It was observed that the high concentration of VOCs and low concentration of O3 occurred in winter.In summer,VOCs concentration changed with NOx accordingly,and O3 concentration was the highest.This study indicated that the O3 pollution occurred mainly in the sensitive areas of VOCs and NOx,and controlled alternatively by VOCs and NOx.

Key words: atmospheric environment, VOCs, O3, NOx, Kuitun, Xinjiang