泰山地区大气气溶胶有机组分观测分析

论文总字数：21362字

目 录

1 绪论 1

1.1 研究背景及意义 1

1.1.1 PAEs的性质与用途 1

1.1.3 PAEs对人体健康的影响 1

1.2 国内外研究进展 1

1.3 研究内容 3

2 实验方案 3

2.1 观测地点与采样时间 3

2.2 PM_2.5采样 3

2.2.1 采样及称重仪器 3

2.2.2 膜采样前处理与质量控制 3

2.3 样品分析 4

2.3.1 仪器与试剂 4

2.3.2 样品前处理 4

2.3.3 GC-MS分析 4

2.4 气象数据 5

3 结果与讨论 5

3.1 PM_2.5中PAEs的浓度特征 5

3.1.1 山顶PAEs的浓度特征 6

3.1.2 山底PAEs的浓度特征 8

3.1.3 气象要素与PAEs浓度的相关性分析 9

3.1.4 山顶与山底浓度对比 10

3.1.5 泰山地区PAEs的浓度特征与其他地区对比 10

3.2 PM_2.5中PAEs的来源解析 11

3.2.1主成分分析 11

3.2.2 后向轨迹 12

4 主要结论和展望 13

4.1 主要结论 13

4.2 本文的不足与展望 14

参考文献 14

致谢 17

泰山地区大气PM_2.5中酞酸酯组分的观测分析

甄钟秀

, China

Abstract：In order to explore the concentration characteristics and source characteristics of phthalate esters (PAEs) in the area of Mount Tai, six major PAEs congeners of PM_2.5 samples from the bottom and the top of Mount Tai were analyzed by using gas chromatography-mass spectrometry (GC-MS). The results showed that dibutyl phthalate (DBP) is the highest component of PAEs in the area of Mount Tai, followed by bis(2-ethylhexyl) phthalate (DEHP). The total concentrations of PAEs suddenly increased at the top and bottom of Mount Tai in June, that be related to the incineration of surrounding waste. The total concentrations in the area of Mount Tai is higher during the day, it can be explained by the diurnal variation of boundary layer, ambient temperature and human activities. Correlation analysis with meteorological elements showed a significant positive correlation between total PAEs concentration and temperature. Principal component analysis indicated that the volatilization of sewage and industrial wastewater, cosmetics and personal care products, plastic packaging and the burning of plastic rubbish are important sources for PAEs in atmospheric particulate matter in the area of Mount Tai. The air mass from the northwest of Mount Tai pass to the junction of Henan Province and Hebei Province is the most important part in the transportation of PAEs at the top of Mount Tai by the cluster analysis of the backward trajectory.

Key words：Phthalate esters; Concentration characteristics; Correlation analysis; Source analysis

1 绪论

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