乌鲁木齐市大气环境质量变化趋势分析
Analysis on Variation Trend of Atmospheric Environmental Quality in Urumqi
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摘要: 以乌鲁木齐市2004~2010年间的大气环境质量监测数据为依据,采用空气污染综合指数法评价其大气环境质量,并运用Spearman秩相关系数预测其发展趋势。结果表明:乌鲁木齐市大气环境质量为轻度污染,主要污染物为SO2和PM10。NO2和PM10有上升趋势,SO2呈不显著下降趋势。Abstract: In order to improve the atmospheric environment, based on the major air pollution monitoring data of Urumqi city during 2004~2010, the air quality of Urumqi city was assessed using atmospheric pollution composite index and its development trend was forecasted using Spearman rank correlation coefficient.The results showed that the air quality of Urumqi city was lightly polluted and the main pollutants are SO2 and PM10.The concentration of NO2 and PM10 displayed up trend, and that of SO2 showed downtrend but not significantly.
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Key words:
- Atmospheric Pollution Composite Index /
- Spearman /
- Rank Correlation Coefficient /
- Trend
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