نتایج جستجو برای: environment pollutants

تعداد نتایج: 539267  

Journal: :Environmental science and pollution research international 2001
M Allsopp P Costner P Johnston

After pollutants from an incineration facility disperse into the air, some people close to the facility may be exposed directly through inhalation or indirectly through consumption of food or water contaminated by deposition of the pollutants from air to soil, vegetation, and water. For metals and other pollutants that are very persistent in the environment, the potential effects may extend wel...

Alireza Taheri-Rad, Desa Ahmad, Hosseinali Shamsabadi Mohammad Abedi

Decisions can be taken to increase energy efficiency and to mitigate the emissions to the environment by examining the energy audit and greenhouse gas (GHG) emissions footprint of crop production in different ways and in different regions, with comparable principles. In this study, energy consumption and energy indices of tomatoes production in four regions of Iran including East Azerbaijan...

2008

Is exposure to pollutants present in the environment also harmful for human beings? And is this exposure increasing? Are bans on the manufacture or use of certain substances sufficient to protect us against such exposure? Environmental health monitoring provides answers to these questions. It generates information for policymakers and the public on how pollutants, noise, dust and allergens adve...

2008

What is air quality? Zhang (2005) defines air quality as the degree of pollution of clean air. Clean air is the air that is free from impurities. Air quality can be determined by measuring the concentration of pollutants in the air. The lower the concentration of airborne pollutants, the better is the air quality. Auvermann (2006) defined air pollutants as compounds or materials that, when susp...

Journal: :international journal of marine science and engineering 2013
m. kashefiolasl h. zargarlelahi

pollution of marine waters is one of the important issues that has a irreparable effects. also, in the organic oil pollutants, due to inappropriate effects on the environment and humans health and ability to create cancer, hydro carbons of polycyclic (pahs) and heavy metals (ni,hg,v) have a particular importance. according to the importance of study of the environ mental contaminants in the fou...

Journal: :Biotechnology advances 2004
Yusuf Chisti

A pollutant is any natural or unnatural material that is present in the environment at unnaturally high levels. Concern about pollution is meaningful only in the context of a pollutant’s impact on the biosphere. How a pollutant affects the biosphere has been conventionally characterized in terms of easily quantifiable measures such as the chemical oxygen demand (COD), biochemical oxygen demand ...

ساعدی , مهدی, سبحان اردکانی , سهیل,

Background and purpose: Air pollutants from cement factories and their accumulation in the environment cause various diseases and disorders in humans, plants and animals depending on the gender, size and duration of inhaled particles. Such pollutants also have synergistic effects on other air pollutants. This study was carried out for the first time to investigate the pollutants from Khouzest...

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