李国昊,魏巍,程水源,王海燕,王刚

• 1:北京工业大学环境与能源工程学院

摘要(Abstract)：

在夏秋季对我国北方某石化炼油厂附近大气中的O3及其前体物的体积分数进行了监测,分析了其日变化特征及其与气象要素的相关性,并分析了O3超标与未超标期间气象条件与O3前体物的特征。结果表明,夏秋季炼油厂附近O3体积分数超标严重。O3体积分数呈单峰型日变化,在午后15:00左右出现日最大值,夜晚体积分数较低;而NOx和VOCs体积分数与O3相反,白天较低,夜间较高,并呈现双峰型日变化。烯烃和苯系物体积百分比的日变化趋势为先降低后升高,烷烃体积百分比的日变化趋势则相反。夏秋季O3体积分数变化与温度、风速成正相关,与相对湿度成负相关。O3超标与未超标期间前体物体积分数及气象条件均存在显著差异,温度、相对湿度在O3超标期间均大于未超标期间,风速则相反。NO和VOCs体积分数在O3超标期间均小于未超标期间,而NO2体积分数差别不大。在O3体积分数最大的午后14:00,烯烃和苯系物体积百分比在O3超标期间小于未超标期间。

关键词(KeyWords)： 环境学;炼油厂;臭氧;VOCs;气象条件

Abstract:

Keywords:

基金项目(Foundation): 环保公益性行业科研专项(201209003)

作者(Author): 李国昊,魏巍,程水源,王海燕,王刚

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