西安市大气悬浮颗粒物污染现状及其有机提取物致突变性研究

doi:10.3969/j.issn.1004-616x.2003.01.012

癌变·畸变·突变 ›› 2003, Vol. 15 ›› Issue (1): 43-45.doi: 10.3969/j.issn.1004-616x.2003.01.012

西安市大气悬浮颗粒物污染现状及其有机提取物致突变性研究

于　燕, 张振军, 张敬华

西安交通大学医学院公共卫生系环境卫生学教研室，陕西　西安　710061

收稿日期:2002-07-10 修回日期:2002-09-16 出版日期:2003-01-30 发布日期:2003-01-30
通讯作者: 于　燕

STUDY ON THE TSP CONTAMINNATIVE STATE AND THE MUTAGENICITY OF THE ORGANIC EXTRACTS IN XI'AN CITY

YU Yan, ZHANG Zhen-jun, ZHANG Jing-hua

Department of Environment Health, School of Public Health, College of Medical Science, Xi'an Jiaotong University, Xi'an 710061 , China

Received:2002-07-10 Revised:2002-09-16 Online:2003-01-30 Published:2003-01-30
Contact: YU Yan

摘要/Abstract

摘要： 目的：了解西安市采暖期和非采暖期的大气总悬浮颗粒物(TSP)浓度及其有机提取物的致突变性。方法：根据西安市城市功能分区，用网格式布点法，选择了4个大气质量监测点(工业区、混合区、交通繁忙区和对照区)，于采暖期和非采暖期，共采集大气悬浮颗粒物样品96份，分别采用增重法和Ames试验，对样品中大气TSP浓度和有机提取物的致突变性进行测定。结果：西安市大气TSP采暖期为0.586 5 mg / m 3，非采暖期为0.353 5 mg / m 3，采暖期TSP浓度显著高于非采暖期(P<0.05)，且两期TSP浓度均显著高于其各自对照区(P<0.05)。各采样点TSP的有机提取物致突变性检测结果显示各功能区均可检出致突变阳性样品，同一季节各监测点致突变性检出率无显著性差异(P>0.05)，但采暖期致突变阳性检出率显著高于非采暖期(P<0.05)。结论：西安市大气TSP水平呈现明显的季节性并以采暖期最高；燃煤可能是造成西安市大气TSP致突变性增强的主要原因之一。

关键词: 总悬浮颗粒物, 提取物, 致突变性

Abstract: Purpose: To study the concentration of total suspended particulates (TSP) and the mutagenicity of the organic extracts in heating and unheating seasons in Xi'an City. Methods: Based on the distribution of the city functional district, four surveillance spots (industry zone, mixed zone, heavy traffic zone and control zone)were chosen by the method of grid. The concentration of TSP and mutagenicity of the organic extracts were investigated in 96 TSP samples obtained from two seasons by means of increasing weight and Ames test, respectively. Results: In heating and unheating seasons, the TSP concentration was 0.586 5 mg / m 3 and 0.353 5 mg / m 3, respectively. The difference was highly significant(P<0.05), and the TPS concentrations in two seasons were also significantly higher than the control group(P<0.05). The positive mutagenicity of organic extracts was tested in all functional sampling spots, and the positive rate in heating period was significantly higher than unheating season(P<0.05), but there was no difference among the same season samples (P>0.05). Conclusion: There was an obvious relationship between the TSP concentration and the season, and the TSP level was the highest in the heating season. The coal consumption was probably one of the main reasons of enhancing the mutagenicity of TSP in Xi'an City.

Key words: Total suspended particulates, Extract, Mutagenicity

于　燕, 张振军, 张敬华. 西安市大气悬浮颗粒物污染现状及其有机提取物致突变性研究[J]. 癌变·畸变·突变, 2003, 15(1): 43-45.

YU Yan, ZHANG Zhen-jun, ZHANG Jing-hua. STUDY ON THE TSP CONTAMINNATIVE STATE AND THE MUTAGENICITY OF THE ORGANIC EXTRACTS IN XI'AN CITY[J]. Carcinogenesis, Teratogenesis & Mutagenesis, 2003, 15(1): 43-45.

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西安市大气悬浮颗粒物污染现状及其有机提取物致突变性研究

STUDY ON THE TSP CONTAMINNATIVE STATE AND THE MUTAGENICITY OF THE ORGANIC EXTRACTS IN XI'AN CITY

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