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| Concentration of Black Carbon in the Hinterland of the Taklimakan Desert |
| Lu Hui1, Wei Wenshou1, Cui Caixia2, Wu Xinping3 |
1. Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2. Xinjiang Weather Observatory, Urumqi 830002, China;
3. Tazhong Meteorological Station, Bayan Gol Meteorological Bureau, Kolra 830013, Xinjiang, China |
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Abstract The black carbon aerosol mass concentrations were continuously observed by aethalometer at Tazhong meteorological station in the hinterland of the Taklimakan Desert from March of 2006 to February of 2007, and in combining with the data of mass concentrations of PM10, visibility and the routine weather observation, the variation features of black carbon and influencing factors were analyzed in this paper. The results showed that the hourly and daily average values of black carbon concentration were 1.81±1.58 g·m-3and 1.72±0.85 g·m-3, separately, and the regional background concentration of black carbon was 0.78 g·m-3; the diurnal variation of black carbon mass concentration showed a single peak curve, which is different from the double or three peak curve in other areas; the seasonal variation of black carbon concentration was obvious, which was higher in spring and winter, lower in autumn; due to the aerosol absorption increased by heavy dust in spring, the black carbon mass concentrations observed by Aethalometer would be higher than actual values of the near surface; the hourly average black carbon concentrations were significantly non-linearly correlated with wind speed and the black carbon concentrations obviously differed in various wind directions; the local variation of the black carbon concentrations were relevant to the seriously polluted air mass transported from the prevailing wind direction, and were affected by the local dust and emission sources.
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Received: 23 May 2013
Published: 20 July 2014
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Corresponding Authors:
魏文寿（Email：weiwsh@idm.cn）
E-mail: weiwsh@idm.cn
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2014, Vol. 34 
