“十三五”甘肃省降尘时空变化趋势及影响因素

通过分析"十三五"期间甘肃省降尘及相关数据,对甘肃省降尘时空变化情况进行研究,对其变化趋势和影响因素进行分析。"十三五"期间,甘肃省降尘总体呈下降趋势,下降幅度达24.30%,全省植被覆盖指数上升2.03%,降尘与植被覆盖指数负相关性显著。自然来源中,沙尘天气是影响甘肃省降尘的主要因素。城市精细化管理水平的提高可减少降尘人为来源。     

关于“十二五”国家环境监测的思考

根据环境监测面临的新形势和新任务,提出了"十二五"期间做好国家环境监测工作需在九个方面下功夫,并对国家环境监测"十二五"规划的有关内容提出了建议。     

Evaluation of alternative water sources for commercial buildings: A case study in Brisbane,Australia

Commercial buildings are central to cities and contribute significantly to the urban demand for natural resources, including freshwater. Green building benchmarking tools include more efficient water use as key indicator of sustainability. This paper explores options for substituting mains drinking water with an alternative, non-potable water source on a fit for purpose basis. The research findings are based on a monitoring study of a commercial building in Brisbane, Australia that is harvesting rainwater for meeting non-potable water demand. The results demonstrated that the system is only achieving moderate reliability in meeting demand due to operational problems. The case study analysis has highlighted the need to include validation and monitoring to ensure the system is operating as per design intent. The paper also investigates the potential of other local, non-potable water sources for high-rise commercial buildings, in particular air conditioning condensate and groundwater inflow to a basement wet well. The paper concludes by comparing the advantages and disadvantages of different local water sources which highlights the need to undertake a site specific investigation to identify a suitable alternative water source, which considers O&M complexity and the capacity of facilities management.