نتایج جستجو برای: pollution transport

تعداد نتایج: 340170  

2016
Guillermo Rey Gozalo Juan Miguel Barrigón Morillas

Today, noise pollution is an increasing environmental stressor. Noise maps are recognised as the main tool for assessing and managing environmental noise, but their accuracy largely depends on the sampling method used. The sampling methods most commonly used by different researchers (grid, legislative road types and categorisation methods) were analysed and compared using the city of Talca (Chi...

2003
Terry J. Logan

From the first awareness of agricultural sources of water pollution in the US in the 1960s, we finally see in the 1990s a commitment at the national level for agricultural non-point source (NPS) pollution control. This has been occasioned by a growing awareness that, with point sources of some pollutants largely controlled by waste-water treatment, greater attention must be paid to NPS pollutio...

The current trend of rising energy consumption in the world has hit mankind with two major crises: first, environmental pollution, and second, the acceleration of finishing energy supplies. Energy storage and reduction of pollutants in the city plays a crucial role in the process of maintaining existing energy. Meanwhile, the transportation sector needs attention due to its importance and posit...

Journal: :JCP 2012
Changjun Zhu Shuwen Li Zhenchun Hao Hehai Xie

Contaminant transport in underground system usually occurs in varied flow fields and in anisotropic and heterogenous media. Because the applicability of analytical solutions is extremely limited for such conditions, and the distribution and transport of pollutants in groundwater are controlled by physics and chemistry and biology courses, which include advection, mechanical disperse, molecule s...

2012
DEEPTI SRIVASTAVA

When speaking about harm to the human body in the term of pollution, indoor pollution is equally harmful as the outdoor pollution. Volatile Organic Compounds contribute to the toxic oxidants which are harmful to the ecosystem, human health and atmosphere. Volatile organic compounds (VOCs) are major group of air pollutants which play critical role in atmospheric chemistry. It contributes to toxi...

2013
James Woodcock Moshe Givoni Andrei Scott Morgan

BACKGROUND Achieving health benefits while reducing greenhouse gas emissions from transport offers a potential policy win-win; the magnitude of potential benefits, however, is likely to vary. This study uses an Integrated Transport and Health Impact Modelling tool (ITHIM) to evaluate the health and environmental impacts of high walking and cycling transport scenarios for English and Welsh urban...

2013
Min Huang Kevin W. Bowman Gregory R. Carmichael R. Bradley Pierce Helen M. Worden Ming Luo Owen R. Cooper Ilana B. Pollack Thomas B. Ryerson Steven S. Brown

[1] The impact of Southern California (SoCal) anthropogenic emissions on ozone (O3) in the mountain states in May 2010 is studied using the Sulfur Transport and Deposition Model. We identified two to six major transport events from SoCal to different subregions in the mountain states, with transport times of 0–2days indicated by trajectories, time-lag correlations, and forward/adjoint sensitivi...

2005
Petra Seibert Dietrich Heimann Peter Suppan

ALPNAP (Monitoring and Minimisation of Traffic-Induced Noise and Air Pollution Along Major Alpine Transport Routes) is a new project financed under the EU Interreg III B Alpine Space Programme. It will run from 2005-2007. A network of eleven institutions has been formed with DLR Institute of Atmospheric Physics as the lead partner. The project aims at the integrated use of advanced science-base...

Journal: :Environmental toxicology 2008
Hung-Yu Chen Chih-Chieh Su Chin-Chang Hung Tzu-Chi Yeh Ying-Hung Shen Cheng-Han Tsai Liang-De Chen Gwo-Ching Gong

Azaarenes belong to the newly identified classes of anthropogenic pollutants. To our knowledge, this study presents the first result of pollution history of azaarenes and their controlling factors in estuary. To understand the transport mechanisms, surface sediment samples were collected from 18 sites of the Danshuei River during the summer and the winter of 2005. The highest concentrations of ...

2006
Piotr Holnicki P. HOLNICKI

The paper addresses the problem of real-time emission control in a given set of air pollution sources. The approach applied utilizes the optimal control technique for distributed parameter systems. A set of pointwise emission sources with a predefined location and emission characteristics is considered as the controlled object. The problem is formulated as on-line minimization of an environment...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید