乡宁县大气环境质量变化趋势研究 The Research Atmospheric Environmental Quality Change Trend in Xiangning

本文应用Spearmen秩相关系数法对乡宁县大气质量的变化趋势进行分析。在收集、整理乡宁县大气环境质量监测数据的基础上，统计分析主要污染物的变化特征。结果表明：近年来乡宁县飞速发展的经济、社会对环境质量有着巨大的压力，经过产业结构优化、能源结构调整、消减污染排放量、增加绿化覆盖率、加大环保投资等一系列措施的实施，使大气环境中主要污染物浓度变化趋势趋于稳定或略有上升。乡宁的大气环境质量正在逐渐好转。但是，污染物浓度仍然在缓慢上升，依然值得我们关注。 This article applies Spearmen rank correlation coefficient method to analyze the Xiangning air quality change trend. On the basis of atmospheric environmental quality monitoring data, the characteristics of the main pollutant are analyzed. Results show that in recent years, the economy and society of rapid development in Xiangning have great pressure on environmental quality. Through the optimization of industrial structure, energy structure adjustment, reducing emissions, increasing green coverage, and the implementation of a series of measures such as increasing environmental protection investment, the change trend of mainly pollutant concentration in the atmospheric environment tends to be stable or slightly higher. Atmospheric environment quality in Xiangning is getting better. However, pollutant concentration is still slowly rising which is worthy of our attention.