搜索结果: 1-15 共查到“环境科学技术 Ozone”相关记录29条 . 查询时间(0.171 秒)
A wildfire can pump smoke up into the stratosphere, where the particles drift for over a year. A new MIT study has found that while suspended there, these particles can trigger chemical reactions that...
Fires Burning in Africa & Asia Cause High Ozone in Tropical Pacific（图）
Fires Burning Africa Asia High Ozone Tropical Pacific
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2016/1/22
While efforts to limit ozone precursor emissions tend to focus on industrial activities and fossil fuel combustion in the United States and China, a new University of Maryland-led study suggests that ...
Ozone levels drop 20 percent with switch from ethanol to gasoline
Ozone levels drop 20 percent with switch from ethanol to gasoline
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2014/5/13
Choice at the pump. When residents of São Paulo chose gasoline over ethanol to fuel their vehicles, levels of ozone actually decreased, according to a Northwestern study.
同济大学环境科学与工程学院环境化学课件PART2-6 Stratospheric Ozone Depletion
同济大学环境科学与工程学院 环境化学 课件 PART2-6 Stratospheric Ozone Depletion
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2013/12/12
同济大学环境科学与工程学院环境化学课件PART2-6 Stratospheric Ozone Depletion。
On the Chain Length and Rate of Ozone Depletion in the Main Stratospheric Cycles
Ozone Depletion Stratospheric Cycles Chain Propagation
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2013/2/27
Algorithm for calculation of the chain length and rate of stratospheric ozone depletion in Ox, HOx, NOx, ClOx and BrOx cycles has been developed. The most important new element in the theory of strato...
Atmospheric Trajectory and Chemical Transport Modelling for Elevated Ozone Events in Denmark
Elevated Ozone Concentration Event and Episode Atmospheric Trajectory
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2013/2/27
In this study, three Danish sites having the longest (1990-2004) time-series of ozone measurements were analysed on inter-annual, monthly and diurnal cycle variability as well as elevated and lowered ...
An Investigation of the Factors Affecting the Ozone Concentrations in an Urban Environment
Adjoint Model Ozone Sensitivities Emissions Urban Area
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2013/2/27
Adjoint sensitivity analysis allows to assess the areas that have the largest impact on a given receptor site. The adjoint version of the Community Multiscale Air Quality (CMAQ v4.5) model was employe...
An Investigation of the Factors Affecting the Ozone Concentrations in an Urban Environment
Adjoint Model Ozone Sensitivities Emissions Urban Area
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2013/3/28
Adjoint sensitivity analysis allows to assess the areas that have the largest impact on a given receptor site. The adjoint version of the Community Multiscale Air Quality (CMAQ v4.5) model was employe...
Recycle of Wastewater from Lead-Zinc Sulfide Ore Flo-tation Process by Ozone/BAC Technology
Lead-zinc sulphide ore Ozone/BAC flotation wastewater recycle
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2013/3/9
Lead-zinc sulphide ore contains lead sulphide (galena), and zinc sulphide (sphalerite). In the first flotation stage, galena is rendered hydrophobic with an organic collector such as xanthate, while s...
Effects of Changed Climate Conditions on Tropospheric Ozone over Three Centuries
Ozone limate Change Air Quality Modelling
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2013/2/27
The ozone chemistry in four decades (1890s, 1990s, 2090s and 2190s) representing the changes over three centuries has been simulated using the chemistry version of the atmospheric long-range transport...
Comparing the Adequacy of Some Non-Homogeneous Poisson Models to Estimate Ozone Exceedances in Mexico City
MCMC Algorithms Non-Homogeneous Poisson Models Change-Points Ozone Air Pollution Mexico City
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2013/3/11
We consider some non-homogeneous Poisson models to estimate the mean number of times that a given environmental threshold of interest is surpassed by a given pollutant. Seven different rate functions ...
Using Spatial Econometrics to Measure Ozone Pollution Externalities
Air Pollution Externalities Spatial Econometrics
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2013/3/11
This paper summarizes my previous work in Lin (2010), in which I use spatial econometrics to analyze air pollution externalities. In Lin (2010), state-by-state source-receptor transfer coefficients th...
High-Sensitivity Ozone Sensing Using 280 nm Deep Ultraviolet Light-Emitting Diode for Detection of Natural Hazard Ozone
Ozone Sensing Deep Ultra Violet Light Emitting Diode DUV-LED High Sensitivity Long Life Compact
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2013/3/11
Recently ozone is one of natural hazards which comes from cars, industry using ozone for sterilization of organic and inorganic materials and for water purification. So, ozone sensing becomes very imp...
Analyses of the Ozone Weekend Effect in Tokyo, Japan: Regime of Oxidant (O3 + NO2) Production
Ozone weekend effect Ozone production regime Nitrogen oxides Non-methane hydrocarbons
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2016/3/28
The ozone weekend effect (OWE) in Tokyo, the capital of Japan, was analyzed from April 2005 to March 2008 with respect
to the photochemical ozone production, focusing on the ozone production regime. ...
Non-methane Hydrocarbons and Their Ozone Formation Potentials in Foshan, China
Non-methane hydrocarbons Vehicular emission Solvent evaporation Ozone formation potential Foshan
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2016/3/25
Concentrations of non-methane hydrocarbons (NMHCs) were measured to investigate their temporal variations and
major sources, and to explore the ozone formation potentials (OFP) of each NMHCs for the ...