夏敦胜,余晔,马剑英,刘秀铭,陈发虎

• 1:中国科学院寒区旱区环境与工程研究所
• 2:中国科学院寒区旱区环境与工程研究所
• 3:中国科学院寒区旱区环境与工程研究所
• 4:兰州大学西部环境教育部重点实验室

摘要(Abstract)：

本文应用环境磁学方法研究了兰州市区大气自然降尘的磁学特征。结果表明:兰州市大气降尘中磁性矿物含量较高,主要含有磁铁矿和磁赤铁矿,并伴有少量赤铁矿,磁性矿物颗粒较粗,为准单畴颗粒;兰州市自然粉尘背景值较高,但市区污染物仍以人为源为主,尤其在冬季采暖期间最为显著,且在春、夏季节,兰州市的污染仍以人为源为主,与通常认为兰州市污染冬季以燃煤为主,春、夏季以粉尘为主的模式有较大差异。

关键词(KeyWords)： 环境磁学;大气降尘;环境污染;兰州市

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(40401064、40571147、90502008);; 科技部重点国际合作项目(2002CB714004);; 创新研究群体科学基金项目(40421101)

作者(Author): 夏敦胜,余晔,马剑英,刘秀铭,陈发虎

参考文献(References)：

• [1]Fergusson JE.Dust in the environment,In Science of Global Change[J].American Chemical Society,1992,34,117-133.
• [2]Fergusson JE,Kim N.Trace elements in street and house dusts:source and speciation[J].Science Total Environment,1991,100:125-150.
• [3]Harrison,RM,Smith DJT,Pio CA and Castro LM.Comparative receptor modelling study of airborne particulate pollutants In Birming-ham(UK),Coimbra(Portugal)and Lahore(Pakistan)[J].Atmospheric Environment,1997,31:3309-3321.
• [4]Adgate JL,Williis RD,Buckley TJ et al.Chemical mass balance source apportionment of lead in house dust[J].Environmental ScienceTechnology,1998,32:108-114.
• [5]田裘学,周伶芝.兰州市大气污染对居民健康影响的研究[J].中国环境科学,1994,14(3):200~205.
• [6]邓祖琴,张成君,胡铁鑫.兰州大气降尘中的多环芳烃特征及其与地形和气候因素之间的关系[J].干旱区资源与环境,2004,18(8):48-51.
• [7]Chen FH,Yang LP,Wang JM et al.Study on atmospheric particulate pollution of Lanzhou using magnetic measurements[J].Journal ofEnvironmental Science,1999,11(3):373-377.
• [8]杨丽萍,陈发虎.兰州市大气降尘污染物来源研究[J].环境科学学报,22(4):499-502,2002.
• [9]彭林,沈平.兰州市大气飘尘中有机物浓度的变化及其分布特征[J].沉积学报,1996,14(1):156-161.
• [10]De Miguel E,Llamas JF,Chacon E,Berg T,Larrsen S,Royset O,and Vadset M,Origin and patterns of distribution of trace elementin street dust:unleaded petrol and urban lead[J].Atmospheric Environment,1997,31:2733-2740.
• [11]Nagerotte,SM and Day JP.Lead concentrations and isope ratios in street dust determined by electrothermal atomic absorption spec-trometry and inductively coupled plasma mass spectrometry[J].Analyst,1998,123:59-62.
• [12]Soylak M,Narin I,and Dogan M.Lead concentrations of dust samples from Nigde city-Turkey[J].Fresenius Environmental Bulle-tin,2000,9:36-39.
• [13]Shahin Y,Yi SM,Paode RD et al.Long-term elemental dry deposition fluxes measured around Lake Michigan with an automated drydeposition sampler[J].Environmental Science Technology,2000,34:1887-1892.
• [14]Petrovsky E,and Ellwood BB.Magnetic monitoring of air-and water-pollution.IN:Maher BA and Thompson R(eds)QuaternaryClimates,Environments and Magnetism[M].Cambridge University Press,UK,1999,279-322.
• [15]Thompson R and Oldfield F.Environmental magnetism[M].London:Allen Unwin,1986,1-227.
• [16]Chester R,Sharples EJ,Sanders G,et al.The distribution of nature and non-crustal ferromagnetic minerals in soil-size particulatesfrom the Mediterranean atmosphere[J].Water Air Soil Pollution,1984,23:25-35.
• [17]Hunt A,Jones J,and Oldfield F.Magnetic measurements and heavy metals in atmospheric particulateres of anthropogenic origin[J].Science Total Environment,1984,33:129-139.
• [18]Hoffmann V,Knab M and Apple E.Magnetic susceptibility napping of roadside pollution[J].Journal of Geochemical Exploration,1999,99:313-326.
• [19]Morris WA,Versteeg JK,Bryant,et al.Preliminary comparisons between mutagenicity and magnetic susceptibility of respirable air-borne Particulate[J].Atmospheric Environment,1995,29:3441-34500
• [20]Xie S,Dearing JA,Bloemendal J et al.Association between the organic matter content and magnetic properties in street dust,Liver-pool,UK[J].The Science of the Total Environment,1999,241:205-214.
• [21]Matzka J and Maher BA.Magnetic biomonitoring of roadside tree leaves:identification of spatial and temporal variations in vehicle-de-rived particulates[J].Atmospheric Environment,1999,33:4565-4569.
• [22]Gautam P,Blaha U,Appel E et al.Environmental magnetic approach towards the quantification of pollution in Kathmandu urban area,Nepal[J].Physics and Chemistry of the Earth,2004,29:973-984.
• [23]Shu J,Dearing JA,Morse AP et al.magnetic properties of daily sampled total suspended particulates in Shanghai[J].EnvironmentalScience Technology,2000,34:2393-2400.
• [24]孙旭明,尉元明,庞朝云,等.兰州市大气污染分布特征分析[J].干旱资源与环境,2004,18(6):15-18.
• [25]张志斌,李夏.兰州市大气环境污染变化及防治对策[J].干旱区资源与环境,2005,19(6):181-185.
• [26]Day R,Fuller M and Schmidt.Hysteresis properties of titanomagnetites:Grain-size and compositional dependence[J].Physics of theearth and planetary interiors,1977,13:260-267.
• [27]Dearing,J A,Bird P M,Dann R J L,et al.Secondary ferrimagnetic minerals in Welsh soils:a comparison of mineral magnetic detectionmethods and implications for mineral formation[J].Geophysical journal international,1997,130:727-736.
• [28]汪新.兰州市环境质量现状及防治对策分析[J].甘肃科技,2005,21(2):8-11.
• [29]张宁,张武平,张萌.沙尘暴降尘对甘肃大气环境背景值的影响研究[J].环境科学研究,2005,18(5):6-10.
• [30]夏敦胜,魏海涛,马剑英,等.中亚地区现代表土磁学特征及其环境意义[J].第四纪研究,2006(已接受).
• [31]胡守云,邓成龙,Appel E,等.湖泊沉积物环境磁学研究的复杂性[J].科学通报,2001,46(17),1491-1494.
• [32]陈发虎,张维信.甘青地区黄土地层学与第四纪冰川问题[M].北京,科学出版社,1993.1-155.
• [33]刘哲民,张军,李炜.兰州市TSP时空分布特征及防治措施[J].干旱区资源与环境,2005,19(5):46-48.