(SEI),and explores the current situation of the research on the causes of air pollution in China through literature research and summary methods.It not only provides a scientific basis for the reasonable formulation of policies and strategies,but also makes it more convenient for the government to...
[Analysis of Changes and Factors Influencing Air Pollutants in the Beijing-Tianjin-Hebei Region During the COVID-19 Pandemic]. Beijing-Tianjin-Hebei regionCOVID-19 epidemicair qualityhuman influencepollution characteristicsA series of strict control measures were imposed in the Beijing-... X Zhao,N...
air pollution.One is the weather conditions,namely,the strong high pressure and equal pressure at sea level make vertical atmospheric stratification stable over Beijing,which is not benefit to horizontal diffusion of air pollutants.Another is the terrain,namely,Beijing region is surrounded by mountains...
Several factors (contribute) to the pollution of the air, and we must take some measures that can make a valuable to cleaning the air. (所给词的适当形式填空) 相关知识点: 试题来源: 解析 contributed 【详解】 考查动词时态。句意:有几个因素造成了空气污染,我们必须采取一些措施来净化空气。根...
内容提示: Note: This is an early version of the AP 42, Compilation of Air Pollutant Emission Factors, Volume I Stationary Point and Area Sources. EPA has made this available for historical reference purposes. The latest emission factors are available on the AP42 webpage. The most recent ...
Pollution, Waste, and a Circular economy 污染,浪费和循环经济 Air Pollution 空气污染 清洁的空气对健康、环境和经济繁荣至关重要。空气污染加剧对环境有不利影响,对人体健康有负面影响破坏生态系统, 使生物多样性变得贫瘠,土壤酸化导致作物减产。 根据世界卫生组织(世卫组织)的数据,室内和室外空气污染每年造成全球70...
This volume contains emission data obtained from source tests, material-balance studies, engineering estimates, etc., that have been compiled for use by individuals and groups responsible for conducting air-pollution emission inventories. Emission factors given in the document cover most of the common ...
meteorological factors affecting causes and controls of air pollutiondoi:10.1080/00966665.1956.10467718HewsonE. WendellTaylor & Francis GroupJournal of the Air Pollution Control AssociationHewson, E. W., 1956. Meteorological factors affecting causes and controls of air...
China's tremendous economic growth during the past three decades has resulted in worsening air quality in most of its cities. However, the spatiotemporal patterns and underlying drivers of air pollution in China remain poorly understood. To address this issue, we used stepwise regression to identify...
EPA has reached an agreement with environmentalists setting a date for the agency to revise “emission factors” used to estimate air pollution from municipal solid waste (MSW) landfills, possibly increasing estimated emissions of the facilities’ conventional air pollutants and greenhouse gases, with...