Recent News
Photochemical smog
by admin / October 21st 2011 / No Comment
Photochemical smog is a particular air pollution that is produced in the days weather conditions characterized by stability and strong sunshine. Nitrogen oxides (NOx) and volatile organic compounds (VOCs) emitted into the atmosphere from many natural processes or anthropogenic, undergo a complex set of photochemical reactions induced by ultraviolet light present in sunlight, everything leads [...]
Greenhouse Effect
by admin / October 21st 2011 / No Comment
The greenhouse effect is a phenomenon without which life as we know it now would not be possible. This process consists of a global warming effect of the so-called greenhouse gases, compounds present in air at relatively low concentrations (carbon dioxide, water vapor, methane, etc..). Greenhouse gases allow sunlight to pass through the atmosphere and [...]
Acid rain
by admin / October 21st 2011 / No Comment
The term acid rain is generally understood the process of particle fallout from the atmosphere, gases and acid rain. If this acid deposition occurs in the form of precipitation (rain, snow, fog, dew, etc..) Is called wet deposition, otherwise the phenomenon consists of a dry deposition. Usually the public does however coincide with the term [...]
Systems Abatement of airborne pollutants
by admin / October 21st 2011 / No Comment
The need to limit the presence of pollutants in the air often involves the use of various abatement systems. These systems have proved almost indispensable part of industrial activities that produce large quantities of airborne pollutants. Depending on their function, the technologies to reduce pollutants present in industrial emissions are divided into three broad categories. [...]
The monitoring of pollutants
by admin / October 21st 2011 / No Comment
The monitoring of air pollutants is the measurement of airborne agents potentially hazardous to health or the environment. The process is not limited, however, the mere collection of data, since the measures obtained are used to assess exposure to pollutants by means of a comparison with appropriate reference values taken from a large number of [...]
The Main Air Pollutants
by admin / October 21st 2011 / No Comment
The air we breathe can be contaminated by pollutants from industries, vehicles, power plants and many other sources. These pollutants are a major problem for the harmful effects they may have in respect of health or the environment in which we live. Their impact depends on several factors, such as the amount of air pollutant [...]
The Indoor Air Pollution
by admin / October 21st 2011 / No Comment
Generally, to indicate the present air pollution refers to pollution or outdoor environment, though this latter term can lead to misunderstandings, so in some cases it would be preferable to specify the external environment. With indoor air pollution refers to pollution that affects the air of confined spaces, that is present in those places within [...]
Getting started on air
by admin / October 21st 2011 / No Comment
You can define the air pollution in the atmosphere as the presence of substances that cause a measurable effect on humans, animals, vegetation or on different materials, these substances are not usually present in the normal composition of air, or are at a lower level of concentration. The pollutants are usually classified into two main [...]
The ozone hole
by admin / September 13th 2011 / No Comment
The Earth’s stratosphere contains a relatively high concentration of ozone, a gas composed of three oxygen atoms (O3) and represents a real screen against dangerous ultraviolet radiation (UV) from the sun. Every year, during the spring in the Southern Hemisphere, located in the stratospheric ozone concentration near the South Pole decreases due to natural variations. [...]
The Climate Change
by admin / September 12th 2011 / No Comment
The climate of our planet is dynamic and is still changing since the Earth was formed. The periodic fluctuations in temperature and precipitation in the detailed consequences of this natural variability. There are, however, some evidence that changes in circumstances indicate that the current exceeding the Earth’s climate are those that might be expected as a result [...]