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- W2351732823 abstract "Urumqi has been the one of cities where the air pollution is the most severe in the world. To understand the characteristics of atmospheric pollutants and the impact of meteorology conditions on pollutants in Urumqi, hourly concentration of PM10, SO2 and NO2at three environmental monitoring stations in Urumqi and 13 hourly meteorological elements in Urumqi and Miquan during 2004-2006 were analyzed. The results showed that the air quality characterized by PM10 and SO2had minor pollution in winter while that of other three seasons was good; the air quality characterized by NO2 was good in the four seasons. The daily trend of PM10, SO2 and NO2showed bimodal structure. The max value of PM10 and SO2in winter occurred during 12:00-14:00 and the min value of that existed at 7:00 and 19:00, while the max or min value of the other seasons occurred in the morning or evening. The concentration of PM10 and SO2in south part of the city were higher while that of NO2 in north part of the city was higher. The correlation relationship between meteorological elements and the concentration of SO2 are larger than that of NO2. The correlations of the meteorological elements related to atmospheric thermal factors and PM10 and SO2were obvious during the whole year, while the impact of cloud faction and precipitation on atmospheric pollutants in winter became larger. Winter prevailing winds in Urumqi were north and south wind due to the influences by the Mongolian high pressure and Tianshan Mountain. The PM10 concentration in Urumqi was shownUtrend(decreased first and then increased) with the increase of wind speed in Urumqi and Miquan( the point of transition of the wind speeds 5 m/s and 3 m/s).Southeast winds were contributed more in the long distance transport of atmospheric pollutants. The PM10 concentrations were large under the north and southeast winds at the whole city." @default.
- W2351732823 created "2016-06-24" @default.
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- W2351732823 date "2014-01-01" @default.
- W2351732823 modified "2023-09-23" @default.
- W2351732823 title "The Air Pollution Characteristics and the Impact of Meteorological Conditions in Urumqi" @default.
- W2351732823 hasPublicationYear "2014" @default.
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