牙哈凝析气田大气环境影响回顾评价

为更好地了解牙哈凝析气田开发建设对大气环境质量的影响,根据牙哈凝析气田6年的大气环境监测资料,采用spearman秩相关系数法对牙哈凝析气田开发10年来的环境空气质量进行回顾评价及变化趋势分析。结果表明:牙哈凝析气田大气中主要污染物SO2、NMHC(非甲烷总烃)均总体呈下降趋势,NO2呈上升趋势,而在2008年急剧下降,整体大气环境质量呈现好转趋势。牙哈凝析气田开发区块环境空气质量有了明显的改善,各项大气环境治理措施取得了显著的环境效益。

Review and Evaluation of Atmospheric Environmental Impact of Yaha Condensate Gasfield

In order to get a better understanding of the development and construction of Yaha condensate gasfield on the atmospheric environment,we used six-year atmospheric environmental monitoring data and adopted the spearman correlation coefficient method to evaluate the environment quality of Yaha condensate gasfield in the past decade and analyze the changes.The results showed that: the major pollutants in the atmosphere in Yaha condensate gasfield were SO2 and NMHC(non-methane hydrocarbons) which declined on the whole.NO2 declined sharply in 2008 but increased on the whole.The quality of overall atmospheric environment showed a sign of improvement.The air quality of the development block of Yaha condensate gasfield has been significantly improved and the atmospheric environment governance measures have achieved significant environmental benefits.