نتایج جستجو برای: haloalkane pollutant

تعداد نتایج: 20504  

2017
Nathan Cooper Donna Green Katrin J. Meissner

Publically accessible pollution databases, such as the Australian National Pollutant Inventory, contain information on chemical emissions released by industrial facility and diffuse sources. They are meant to enable public scrutiny of industrial activity, which in turn, is meant to lead to industries reducing their pollution. In Australia, however, concerns have been consistently raised that th...

1998
Jean-Daniel M. Saphores

Using real options, we analyze the timing of implementing emission limits for a decaying pollutant when random environmental effects affect its stock. Two types of irreversibility are present: the first type results from long-term environmental damage, and the second from sunk costs in pollution abatement. We assume that social damage from pollution is a power function of the stock of pollutant...

2007
Calin Ioan Anghel Alexandru Ozunu

Based only on current pollutant measured concentrations and atmospheric parameters the paper presents a novel procedure able to predict pollutant emission concentrations and to estimate the risk of pollution. Instead of deterministic or probabilistic methods, cumbersome regression analysis or physical models, a minimax decision procedure based on support vector machine in a minimax approach imp...

2015
Trong Nhan Nguyen Thanh Chuyen Nguyen Thinh Nguyen

In this study, a three-dimensional numerical simulation of the wind flow and pollutant transport in street canyons is carried out by a new specific solver, which is developed and coupled into an open source CFD tool box, the OpenFOAM package. The new model has been applied to study the effect of roof shapes and building heights on the flow patterns and pollutant transports in the street canyons...

Journal: :international journal of environmental research 0
s. a. hashemi monfared university of sistan and baluchestan, iran m. dehghani darmian university of sistan and baluchestan, iran

water quality prediction is a valuable tool for pollutant control in aquatic environments. a river system is selected and one-dimensional flow is assumed for the simulation of pollutant transport in this paper. advective and diffusive terms of transport equation are considered separately. different functions of advective transport are proposed and applied for a specified velocity on the discret...

Journal: :Environmental Science & Technology 2004

The main purpose of the study is determination of the pollutants hazard potential as well as environmental vulnerability of Qarah Su River. First the most significant pollutant sources in the Qarah Su river watershed were identified and then accordingly the pollution hazard potential rate was calculated in Universal Ranking System Model setting. Then, by generalizing the algebraic sum of the re...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
homayoun khoshravan km8 khezerabad,sari, mazandaran, iran, environmental management research group fatemeh nasehi azad university of ardebil

the main purpose of the study is determination of the pollutants hazard potential as well as environmental vulnerability of qarah su river. first the most significant pollutant sources in the qarah su river watershed were identified and then accordingly the pollution hazard potential rate was calculated in universal ranking system model setting. then, by generalizing the algebraic sum of the re...

Journal: :Pediatrics 2003
Walter J Rogan N Beth Ragan

Pollutant chemicals that are widespread in the environment can affect endocrine function in laboratory experiments and in wildlife. Although human beings are commonly exposed to such pollutant chemicals, the exposures are generally low and clear effects on endocrine function from such exposures have been difficult to demonstrate. Human data including both exposure to the chemical agent and the ...

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