摘要基于徐州市空气质量监测数据，对其进行空气质量状况分析，分析内容包括徐州市环境空气质量指数计算，空气质量的时空分布特征分析（空气质量的年变化，空气质量的月变化，污染物浓度的月变化，雾霾天气的月变化，空间分布特征），以及空气质量状况的成因研究。结果表明：徐州市主要污染物为PM10和PM2。5；空气质量优良率为62%，空气质量达标的有226天，其中为优的有35天，空气质量为良的有191天，污染天气总计137天；冬季空气质量最差，夏季7、8月份空气质量最好；2015雾霾天数共103天，占全年天数的28%，1月份雾霾天气最多， 8月份雾霾天气最少；徐州市七个监测点，黄河新村空气质量最差，淮塔最好。徐州市空气污染主要原因有：工业污染，生活耗能，交通运输，气象因素。71854

该论文有图11幅，表7个，参考文献8篇。

毕业论文关键词：空气质量指数  时空分布  可吸入颗粒物  细颗粒物  雾霾   

Air quality analysis in Xuzhou city 

Abstract Air quality analysis is based on xuzhou city air quality monitoring data， including xuzhou city ambient air quality index, the spatial and temporal distribution of air quality analysis (yearly changes of air quality, monthly changes of air quality,  monthly change of pollutants concentration, monthly haze changes, the spatial distribution characteristics), as well as the causes of air quality research。 The results show that xuzhou main pollutants are PM10 and PM2。5; Air quality fine rate was 62%,There were 226 days reaching the index of air quaility, including 35 optimal  days, 191 days of good air quality, a total of 137 days with pollution weather; winter has the Worst air quality, the air quality in July and August is best;In 2015,there were 103 days with fog and haze, accounting for 28% of the annual days, January has  the most days of haze and fog, August , the least; included in seven spots in Xuzhou city, Yellow River village has the worst air quality, HuaiTa temple has the best air quality。 The main reasons for Air pollution in xuzhou city are: industrial pollution, life increased, transportation, weather factors。 

Key Words: air quality index   spatial and temporal distributions   PM10   PM2。5   haze 

目  录

摘要 I

Abstract II

目录 III

1 研究背景 1

2 研究区概况 2

2。1 地理位置 2

2。2 地质地貌 2

2。3 水文气象 2

3 徐州市环境空气质量状况分析 3

3。1数据来源 3

3。2徐州市环境空气质量指数计算 4

3。3徐州市空气质量的时空分布特征 5

3。3。1 徐州市空气质量的年变化特征 5

3。3。2 徐州市空气质量的月变化特征 7

3。3。3 徐州市污染物浓度的月变化特征 9

3。3。4 徐州市雾霾天数的月变化特征 10

3。3。5 徐州市空气质量的空间分布特征 11

4 徐州市环境空气质量状况成因分析 12

5 结论