搜索结果: 1-15 共查到“Urban air”相关记录20条 . 查询时间(0.068 秒)
Using artificial intelligence, Cornell engineers have simplified and reinforced models that accurately calculate the fine particulate matter (PM2.5) – the soot, dust and exhaust emitted by trucks and ...
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...
Spatiotemporal characteristics of urban air quality in China and geographic detection of their determinants
Air Quality Index (AQI) spatiotemporal characteristics geographic detector China
2018/4/9
Ambient air pollution brought by the rapid economic development and industrial production in China has exerted a significant influence on socio-economic activities and public health, especially in the...
A GIS-BASED APPROACH TO SPATIO-TEMPORAL ANALYSIS OF URBAN AIR QUALITY IN CHENGDU PLAIN
Geographical information science Statistical analysis Computer Vision Spatial-temporal analysis Air quality
2016/1/3
Environmental pollution of urban areas is one of key factors that state authorities and local agencies have to consider in the decisionmaking process. Understanding temporal and spatial distribution o...
Spatial Prediction of Transport Related Urban Air Quality
Quality Statistics Pollution Environment GIS
2015/12/3
The aim of this study is to explore the relationship between, transport, land-use and air quality and mapping of air pollutants by means of spatial information sciences, which would provide useful inf...
MAPPING DISPERSION OF URBAN AIR POLLUTION WITH REMOTE SENSING
Urban Pollution Mapping Environment Temperature Optical Landsat
2015/8/31
Dispersion of air pollution depends upon various factors including weather conditions, topography and local situation, causing large
variation, even in small areas. In addition to mathematical dispe...
Downscaling a global climate model to simulate climate change over the US and the implication on regional and urban air quality
Downscaling a global climate model simulate climate change over the US regional and urban air quality
2014/12/12
Climate change can exacerbate future regional air pollution events by making conditions more favorable to form high levels of ozone. In this study, we use spectral nudging with the Weather Research an...
Deep Investigation of Ultrafine Particles in Urban Air
Ultrafine particles Energy Filtered Transmission Electron Microscope analysis Health effects Urban air Carbonaceous aeroso
2016/3/28
This work describes the results of a study which started in 2007 to investigate the ultrafine particle (UFP) pollution in
the urban area of Rome. The sampling site was located in a street with high d...
Spatial and Temporal Variation of Urban Air Quality: A GIS Approach
Ambient Air Quality Seasonal Variation Air Quality Index (AQI) Geographic Information System (GIS)
2013/3/13
This study investigated the seasonal variation of ambient air quality status of Burdwan town using GIS approach. Concentration of SOR2R (sulphur dioxide), NOR2R (nitrogen dioxide) and RSPM (respirator...
Particle number size distributions in urban air before and after volatilisation
Particle number size distributions urban air volatilisation
2010/8/13
Aerosol particle number size distributions (size range 0.003–10 μm) in the urban atmosphere of Augsburg (Germany) were examined with respect to the governing anthropogenic sources and meteorological f...
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...
Correlation between Light Intensity and Ozone Formation for Photochemical Smog in Urban Air of Seoul
Ozone production rate Light intensity Photooxidation Twin smog chambers Urban air
2016/3/29
Urban residents are exposed to high levels of ozone that are produced by photochemical reactions of ambient air in
strong sunlight. The potential for ozone formation of urban air needs to be characte...
Biomass burning and urban air pollution over the Central Mexican Plateau
Biomass burning urban air pollution Central Mexican Plateau
2009/8/7
Observations during the 2006 dry season of highly elevated concentrations of cyanides in the atmosphere above Mexico City (MC) and the surrounding plains demonstrate that biomass burning (BB) signific...
Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air
four different in-situ techniques ambient formaldehyde measurements urban air
2009/1/14
Results from an intercomparison of several currently used in-situ techniques for the measurement of atmospheric formaldehyde (CH2O) are presented. The measurements were carried out at Bresso, an urban...
Evaluation of high-resolution forecasts with the non-hydrostaticnumerical weather prediction model Lokalmodell for urban air pollutionepisodes in Helsinki, Oslo and Valencia
high-resolution forecast non-hydrostaticnumerical weather prediction model urban air pollutionepisodes
2009/1/9
The operational numerical weather prediction model Lokalmodell LM with 7\,km horizontal resolution was evaluated for forecasting meteorological conditions during observed urban air pollution episodes....