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浙江大学学报（农业与生命科学版）
  2012, Vol. 38 Issue (1): 81-90    DOI: 10.3785/j.issn.1008-9209.2012.01.012
Resource & environmental sciences     
Contents of black carbon in some surface dusts from Zhejiang Province
HUANG Jia‐ming１ ,WANG Xiao‐xu１ ,WANG Yang２ ,ZHANG Ming‐kui１
1 .Zhe j iang Prov incial Key Laboratory o f Subtropical Soil and Plant Nutrition , College o f Env ironmental and Resource Sciences ,Zhejiang University , H angz hou 310058 , China ; 2 . W enz hou Vocational College o f Science and Technology , W enz hou , Zhej iang 325006 , China
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Abstract  To understand the effects of human activity on accumulation of black carbon in surface dusts ,１７４ of surface dust samples were collected from Zhejiang Province . The surface dust samples were taken from different areas which included indoor in countryside , outdoor in countryside , manufacture with coal as fuels , coach station , indoor in urban residential area , outdoor in urban residential area , and office room . The contents of black carbon in the surface dust samples were characterized by chemical method .The results showed that the contents of black carbon in the dusts varied greatly with variation coefficient of ６１.０４ ％ , and ranged from １.４７ to ２５.４７g.kg －１ , and averaged ９.２４g.kg －１ . Most of the samples(４５.９８％ ) had black carbon contents ranging from ５ to １０ g.kg －１ . Mean contents of black carbon in the surface dusts from different areas decreased in the sequence of indoor in countryside ＞ manufacture with coal as fuels ＞ coach station ＞ outdoor in countryside ＞ outdoor in urban residential area ＞ indoor in urban residential area ＞ office room . The proportion of black carbon in total organic carbon ranged from１４.３５％ to ６３.４７％ with mean of ４０.５５％ , and decreased in the sequence of coach station ＞manufacture with coal as fuels ＞ outdoor in urban residential area ＞ indoor in urban residential area ＞office room ＞ indoor in countryside ＞ outdoor in countryside .Correlation analysis showed that contents of black carbon in the dusts were positively and significantly correlated with its total organic carbon .Black carbon content of surface dusts was generally higher than that of soils , and lower than that of
aerosol . The proportions of black carbon in the dust total organic carbon were also higher than those of soils . The results above suggest that the surface dusts can be a source of black carbon in environments in earth .

Published: 20 January 2012
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HUANG Jia ming
WANG Xiao xu
WANG Yang
ZHANG Ming kui
Cite this article:

HUANG Jia ming,WANG Xiao xu,WANG Yang,ZHANG Ming kui. Contents of black carbon in some surface dusts from Zhejiang Province. , 2012, 38(1): 81-90.

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http://www.zjujournals.com/agr/10.3785/j.issn.1008-9209.2012.01.012     OR     http://www.zjujournals.com/agr/Y2012/V38/I1/81


地表灰尘中黑碳含量的研究

为了解人为活动对地表灰尘中黑碳积累的影响,从浙江省各地采集１７４ 个受不同人为活动影响的地表灰尘样,采样地包括农居点(室内、室外) 、燃煤工厂厂区、汽车站、城市居民区(室内、室外)和办公室,用化学分析方法测定地表灰尘中黑碳的含量.结果表明:地表灰尘中黑碳质量分数在１畅４７ ～２５.４７ g.kg －１ 之间,平均为９.２４ g.kg－１ ,有较大的空间变异性,变异系数达６１.０４ ％ ;地表灰尘中黑碳质量分数主要集中分布在５ ～ １０ g.kg －１ 之间,占样品总数的４５.９８％ ;各类地表灰尘中黑碳平均含量由高至低依次为:农居点(室内) ＞ 燃煤工厂厂区＞ 汽车站＞ 农居点(室外) ＞ 城市居民区(室外) ＞ 城市居民区(室内) ＞ 办公室;黑碳占地表灰尘中有机碳的比例在１４畅３５％ ～ ６３畅４７％ 之间,平均为４０畅５５％ ,该比例由高至低依次为:汽车站＞ 燃煤工厂厂区＞ 城市居民区(室外) ＞ 城市居民区(室内) ＞ 办公室＞ 农居点(室内) ＞ 农居点(室外) ;相关分析表明,地表灰尘中黑碳含量与有机碳积累呈正比,地表灰尘中黑碳含量一般高于土壤,但低于大气粒子中的黑碳含量,地表灰尘中黑碳占有机碳的比例也高于一般的土壤.
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