廊坊市区环境空气污染变化趋势研究

以廊坊市"十一五"期间的大气监测数据为依据,应用综合污染指数法对2006～2010年市区的空气质量状况进行评价,其污染等级为清洁;采用图表及Spearman秩相关系数法分析主要大气污染物的变化趋势并阐明原因。结果表明,SO2和降尘呈显著的逐年下降趋势,PM10和NO2变化不明显,廊坊市区空气质量总体上逐年趋好。在趋势研究的基础上,又提出了持续改善空气质量的对策及建议。

Study on Changing Trends of Ambient Air Pollution in Langfang City

To evaluate 2006～2010 urban air quality based on ＂the Eleventh Five-Year period＂ atmospheric monitoring data of Langfang using comprehensive pollution index method.The result showed that the pollution degree is clean.To analyze the changing trends of the main atmospheric pollutants and clarify the reason as well by chart and Spearman rank correlation coefficient.The results showed that SO2 and dust have declined year by year,PM10 and NO2 had no significant change.Ambient air quality in Langfang have been becoming better and better on the whole.Based on the trend study,to put forward some countermeasures and suggestions to improve the air quality.