武昌区环境空气质量变化趋势及治理对策

分析2001年-2008年武汉市武昌紫阳、东湖梨园两个空气质量自动监测点空气质量状况,并运用spearman秩相关系数法判断监测点环境空气质量年变化趋势,2001年-2008年武昌区两个测点的环境空气质量总体趋向好转,优良率上升显著,但东湖梨园测点近三年空气质量优良率逐年下降,武昌紫阳测点空气质量优良率虽呈显著上升趋势,但在近三年上升趋缓。影响环境空气优良率高低的主要污染物是可吸入颗粒物,而造成可吸入颗粒物日均值超标的主要原因是建筑工地、拆迁工地的施工扬尘及运输扬尘。建议采取着重治理扬尘污染、加快产业布局调整、注重季节特点、建立空气质量预警机制及其他综合治理措施改善武昌区环境空气质量状况。

The Change Tendency and Treatment Methods of Air Quality in Wuchang

Air quality datas of two monitor points（Ziyang,Liyuan） from year 2001 to 2008 were analysed,and spearman relative coefficient was used to research their change tendency.It shows that,the air quality of this two points became better as a whole from 2001 to 2008,and good ratio rose obviously.But the air quality good ratio of Liyuan descended gradually,while the good ratio of Ziyang rose more slowly in recent three years.The main pollution pollutants impacting on air quality is inhalable particulate matter,and its main sources are construction and demolishing sites.In order to improve the air quality in Wuchang,it was advised to treat the construction and demolishing dust,accelerate the adjustment of industrial placement,found air quality early-warning system and take synthetic methods.