搜索结果: 1-15 共查到“环境科学技术基础学科 air”相关记录21条 . 查询时间(0.171 秒)
Oak trees in Southern U.S. cities are natural urban air filters（图）
Oak trees Southern cities U.S. natural urban air filters
2019/10/18
Researchers at the University of North Texas have found that two oak tree species, post oak and live oak, that are widespread across the U.S. South remove black carbon from the urban atmosphere. The f...
Survey captures global picture of air pollution’s effects on birds（图）
global picture air pollution birds
2017/9/5
Famously, the use of caged birds to alert miners to the invisible dangers of gases such as carbon monoxide gave rise to the cautionary metaphor “canary in a coal mine.”But other than the fact that exp...
昆明理工大学理学院环境科学与工程学院环境毒理学课件Chapter 4 Air Pollution
昆明理工大学理学院环境科学与工程学院 环境毒理学 课件 Chapter 4 Air Pollution
2017/4/17
昆明理工大学理学院环境科学与工程学院环境毒理学课件Chapter 4 Air Pollution.
Radon Decay Product Aerosols in Ambient Air
Radon Decay products 214Pb 212Pb 210Pb Radioactive aerosols Cascade impactors 1-ACFM AMAD Residence time
2016/3/29
The aerodynamic size distributions of radon decay product aerosols, i.e. 214Pb, 212Pb, and 210Pb were measured using low-pressure
(LPI) as well as conventional low-volume 1-ACFM and high-volume (HVI)...
Air Ion Variation at Poultry-farm, Coastal, Mountain, Rural and Urban Sites in India
Pollution index Aerosol Air ion Transpiration Meteorological Parameters
2016/3/25
The air ions are continuously generated and destroyed by various processes in the atmosphere. Near the surface, the nature
of ions is very complex and they show large variations in their physical pro...
Impacts of Mowing on Bird Abundance, Distribution, and Hazards to Aircraft at Westover Air Reserve Base, Massachusetts
mow airfield grassland Upland Sandpiper nest Bird/Wildlife Aircraft Strike Hazard
2014/12/11
Few studies have measured the impacts of mowing on bird use of habitat and the risk of bird collisions with aircraft on North American airfields. The need for this research has increased as airfields ...
同济大学环境科学与工程学院环境化学课件PART2-2 Atmospheric Composition。
Dynamic downscaling of near-surface air temperature at the basin scale using WRF–a case study in the Heihe River Basin, China
weather research and forecasting model dynamic downscaling surface air temperature Heihe River Basin Watershed Allied Telemetry Experimental Research Project
2013/9/2
The spatial resolution of general circulation models (GCMs) is too coarse to represent regional climate variations at the regional, basin, and local scales required for many environmental modeling and...
Characteristics of Submicron-sized Aerosol Filtration and Pressure Drop of an Electret Filter Installed in an Air Diffuser in a Residential Apartment Unit
Electret filter Filtration Pressure drop
2016/3/28
We investigated submicron-sized aerosol filtration and the pressure drop of an electret filter called a “Flimmer filter.”
The fibers of the filter are aligned parallel to the direction of the airflow...
Measurement of Ambient Air Arsenic (As) Pollutant Concentration and Dry Deposition Fluxes in Central Taiwan
TSP dry deposition best-fit overall dry deposition velocity model arsenic ICP-MS
2016/3/28
This study investigated the feasibility of monitoring arsenic (As) levels in total suspended particulates (TSP), in both
dry deposition and dry deposition flux at five sampling sites located in centr...
Aerial Observation of Aerosols Transported from East Asia — Chemical Composition of Aerosols and Layered Structure of an Air Mass over the East China Sea
Long-range transport East Asia Ionic species Metallic components Chlorine loss
2016/3/28
Aerial observation was conducted during spring (March–April) 2008 over the East China Sea to analyze the transport of
atmospheric pollutants from East Asia and the transformation processes during tra...
Diurnal and Seasonal Air Ion Variability at Rural Station Ramanandnagar (17°2N, 74°E), India
Gerdien condenser Transpiration Vegetation Temperature inversion Radio-active aerosol
2016/3/29
High-energy radiations, such as alpha and beta particles or gamma radiation, ionize air molecules into pairs of positive
ions and free electrons. The diurnal and seasonal variations of these air ions...
Agricultural Fire Impacts on the Air Quality of Shanghai during Summer Harvesttime
Agricultural fire Air quality Potential source
2016/3/29
Agricultural fire is an important source of atmospheric carbonaceous aerosols. To better understand biomass burning
emission originating from fire over Asian agriculture areas and its transport into ...
Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China
PAHs PM10 Diagnostic ratios PCA Sources
2016/3/29
PM10 samples were collected at six sampling sites in city center of Tianjin from April 2008 to January 2009. The
concentrations of 17 selected polycyclic aromatic hydrocarbons (PAHs) in PM10 were qua...
First Differential Mobility Analysis (DMA) Measurements of Air Ions Produced by Radioactive Source and Corona
Differential mobility analyzer Resolution Ion aging Radioactive source Corona discharge
2016/3/29
A recently developed Differential Mobility Analyzer (DMA) of high resolving power (50 for ions of mobility equivalent diameter1
nm) has been used to measure the mobility distribution of lab...