نتایج جستجو برای: pollution source

تعداد نتایج: 481458  

2015
Vladislav S. Andrievskii Pavel A. Barsukov Vladimir N. Bashkin

Atmospheric emissions from gas pre-treatment centers of the Gazprom Dobycha Yamburg LLC influenced the community of oribatid mites in southern tundra ecosystems. It was evidenced by changing the ratio of the ecological groups of the oribatid mites rather than its total abundance. The euedaphic oribatid mites prevailed essentially in the mites community of more contaminated biotopes located clos...

2016
Hussein Sabah Jaber

In this article, the Environmental pollution in Iraq was studied by using the remote sensing techniques for the period (2010-2014). In general, the environmental pollution can be divided into three major parts: Air, Water, and soil pollutions. To overcome the problem, multi-satellite images with different resolution and bands at different dates were used to detect and quantize the source of pol...

2009
N. Al-Mutairi

Problem statement: The reduction in ambient air pollution is a universal goal-particularly in urban areas, the lack of resources often necessitates identification and prioritization of sources of air pollutants. Efficient planning and effective management of environmental pollutants is thus important for optimum utilization of limited resources. Approach: This study examined seven years of data...

Journal: :Ambio 2012
Bo Sun Linxiu Zhang Linzhang Yang Fusuo Zhang David Norse Zhaoliang Zhu

Non-point source (NPS) pollution has been increasingly serious in China since the 1990s. The increases of agricultural NPS pollution in China is evaluated for the period 2000-2008 by surveying the literature on water and soil pollution from fertilizers and pesticides, and assessing the surplus nitrogen balance within provinces. The main causes for NPS pollution were excessive inputs of nitrogen...

2017
Fumikazu Yoshida Akio Hata Haruo Tonegawa

The Itai-Itai disease case is one of four major pollution-related lawsuits occurring in Japan after World War H. This paper, which is based on investigations of the pollution source, the Kamioka mine, considers (1) the history of the disturbances to the environment caused by the Kamioka mine; (2) the Itai-Itai disease suit; (3) the pollution nprevention measures and methods of the Kamioka mine ...

Journal: :Mathematical and Computer Modelling 2011
Jinheng Zhang Tao Shen Minghua Liu Yu Wan Jianbo Liu Jun Li

Non-point source (NPS) pollution originating from agricultural development is the root cause of environmental pollution. Herein, we explore the integration of a NPS pollution model with novel spatial information technology to further understand the effects of enhanced crop development on local water resources. This study was based on land use, soil and precipitation data from studies conducted ...

Journal: :IJGUC 2013
Yuanyuan Zhang Marine Minier

Packet pollution attack is considered as the most threatening attack model against network coding based sensor networks. A widely held belief says that, in a single source multi-destination dissemination scenario, the total number of polluted packets in the network will grow with the length of the transmission path, and the decoding failure (DF) rate at the further destination nodes are relativ...

2017
Sichao Wei David Aadland

We compare pollution permits and green taxes in a unified overlapping generations model with endogenous longevity. The model identifies pollution permits as a potential source of multiple equilibria. One nontrivial equilibrium is an environmental poverty trap (EPT) with low capital and a high stock of pollution. An economy operating around the equilibrium will gravitate toward this equilibrium ...

2003
Allen Blackman Michael Batz David Evans

Ciudad Juárez, Chihuahua, is home to the U.S.–Mexico border’s largest maquiladora labor force, and also its worst air pollution. We marshal two types of evidence to examine the link between maquiladoras and air pollution in Ciudad Juárez, and in its sister city, El Paso, Texas. First, we use a publicly available sector-level emissions inventory for Ciudad Juárez to determine the importance of a...

2003
Michael L. Taylor Stanley F. Miller

This article examines economic incentives and other mechanisms to offset non-point source pollution from agriculture. A biophysical simulator to estimate technical relationships is linked to linear programming models for representative farms in the Willamette Valley of Oregon. The models are then optimized for profit maximization under alternative non-point pollution control policies. The resul...

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