郑州大气PM的形貌特征及生物活性研究

被引：10

作者：

李凤菊

邵龙义

杨书申

杨园园

李慧

机构：

[1] 中国矿业大学(北京)资源与地球科学系煤炭资源与安全开采国家重点实验室

来源：

环境科学 | 2008年 / 09期

关键词：

PM10; 质粒DNA; 场发射扫描电镜(FESEM); 粒度分布;

D O I：

10.13227/j.hjkx.2008.09.020

中图分类号：

X513 [粒状污染物];

学科分类号：

摘要：

采集郑州市区和郊区秋季大气PM10样品,利用场发射扫描电镜(FESEM)和图像分析技术对PM10颗粒进行形貌特征和粒度分布进行分析,同时应用质粒DNA评价法研究了市区和郊区PM10样品的生物活性.结果显示,在市区采集的样品中燃煤飞灰占有相当大的数量,而在郊区采集的样品中矿物质占有较大的数量,粒径分析表明,市区PM10的数量-等效球直径分布较为集中,主要分布在0.10.4μm范围内,郊区则相对比较分散;PM10的体积-等效球直径主要分布在>1μm范围内.结果表明,在郑州市秋季大气PM10中,数量上细粒子占优势,而在体积上(质量上)较粗颗粒占优势.质粒DNA评价结果表明,郑州市区和郊区PM10颗粒对DNA的损伤程度不同,市区样品的生物活性大于郊区样品.

引用

页码：2654 / 2658

页数：5

共 21 条

[11]

Characterization of airborne individual particles collected in an urban area, a satellite city and a clean air area in Beijing, 2001[J] . Zongbo Shi,Longyi Shao,T.P Jones,A.G Whittaker,Senlin Lu,K.A Bérubé,Taoe He,R.J Richards.Atmospheric Environment . 2003 (29)

[12] Reactive oxygen species in pulmonary inflammation by ambient particulates [J].

Tao, F ;

Gonzalez-Flecha, B ;

Kobzik, L .

FREE RADICAL BIOLOGY AND MEDICINE, 2003, 35 (04) :327-340

[13]

Seasonal variation of ionic species in fine particles at Qingdao, China[J] . Min Hu,Ling-Yan He,Yuan-Hang Zhang,Min Wang,Yong Pyo Kim,K.C. Moon.Atmospheric Environment . 2002 (38)

[14] Interactions between ultrafine particles and transition metals in vivo and in vitro [J].

Wilson, MR ;

Lightbody, JH ;

Donaldson, K ;

Sales, J ;

Stone, V .

TOXICOLOGY AND APPLIED PHARMACOLOGY, 2002, 184 (03) :172-179

[15] Particle-induced oxidative damage is ameliorated by pulmonary antioxidants [J].

Greenwell, LL ;

Moreno, T ;

Jones, TP ;

Richards, RJ .

FREE RADICAL BIOLOGY AND MEDICINE, 2002, 32 (09) :898-905

[16] Pulmonary effects of inhaled ultrafine particles [J].

Oberdörster G. .

International Archives of Occupational and Environmental Health, 2000, 74 (1) :1-8

[17]

Inflammatory Effect of Intratracheal Instillation of Ultrafine Particles in the Rabbit: Role of C-fiber and Mast Cells[J] . A. Nemmar,A. Delaunois,B. Nemery,C. Dessy-Doizé,J-F. Beckers,J. Sulon,Pascal Gustin.Toxicology and Applied Pharmacology . 1999 (3)

[18] The role of oxidative stress in the prolonged inhibitory effect of ultrafine carbon black on epithelial cell function [J].

Stone, V ;

Shaw, J ;

Brown, DM ;

MacNee, W ;

Faux, SP ;

Donaldson, K .

TOXICOLOGY IN VITRO, 1998, 12 (06) :649-+

[19] Aerosol size distribution and elemental composition in urban areas of northern China [J].

Ning, DT ;

Zhong, LX ;

Chung, YS .

ATMOSPHERIC ENVIRONMENT, 1996, 30 (13) :2355-2362

[20]

Physical characterization of particulatematter and ambient meteorological parameters at different indoor-outdoor locations in Singapore .2 Gupta A,Cheong K W. Building and Environment . 2007

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