An introduction and the definition of ozone

Industrial emissions of greenhouse gases that affect the climate. Green carbon Carbon stored in terrestrial ecosystems e. Black carbon Formed through incomplete combustion of fuels and may be significantly reduced if clean burning technologies are employed. But a mitigation approach needs to consider all these forms of carbon they note, not just one or two:

An introduction and the definition of ozone

The ozone molecule is very unstable and has a short half-live, causing it to fall back into its original form after a while, according to the following reaction mechanism: Ozone is naturally produced through certain types of chemical reactions. The most commonly known example is the ozone layer, in which ozone is produced by ultra violet rays UVwhich derive from the sun.

Ozone introduction

Ozone is also formed during thunderstorms, in water falls and — allthough this is a less natural process — in photochemical smog which forms in summer. In thunderstorms, ozone forms as a result of the high volatges that are involved. The specific fresh scent after a thunderstorm is caused by ozone formation.

When one speeks of ozone, the above-mentioned examples are immediately associated with it. It is however less known that ozone can be artificially produced, so that it can be used for water treatment. Ozone generators can create ozone artificially by means of extremely high voltages or by means of UV-light.

An introduction and the definition of ozone

Both methods involve the decomposition of the oxygen molecule. This causes oxygen radical formation. These oxygen radicals can bind to oxygen molecules, forming ozone O3. Ozone is one of the strongest known oxidants. It can be used to technically burn dissolved compounds oxidation.

The extra oxygen radical in an ozone molecule quickly binds to each component that comes in contact with ozone molecules. This is because of the instability of ozone and its inclination to return to its original form O2.

Both organic and inorganic substances may be oxidized by ozone oxidationbut also microorganisms such as viruses, bacteria and fungi disinfection. This causes the extra oxygen radical to be released from the ozone molecule and to bind to other materials, so that only pure and stable oxygen molecules O2 are left.

As a result of the above-metioned reaction mechanisms, ozone can be used for a large variety of purposes. Ozone is mainly applied in waste water and drinking water purification for disinfection.

Environmental impact statement - Wikipedia

The application of ozone in the industrial branche is increasing. The food industry uses ozone for disinfection and the textile industry uses ozone for color removal. The largest benefit of zone is its pure caracter.

It only oxidizes substances, and as a result byproduct formation rarely occurs.Halogen element: The six elements—fluorine, chlorine, bromine, iodine, astatine, and tennessine—of Group 17 of the periodic table. The issue we would like to discuss here is about environmental pollution,to make it simpler and precise,we sometimes refer it to the word pollution in the later parts of our ph-vs.comion is spreading like wildfire in many regions of the two most significant types of pollution would.

Progress against vaccine-preventable diseases over the long run in the US. The visualization below shows the reduction in cases and deaths from vaccine-preventable diseases in the United States after the introduction of each vaccine.

Chlorine: Chlorine, chemical element of the halogen group that is a toxic, corrosive, greenish yellow gas, irritating to the eyes and respiratory system. Because people spend a lot of time indoors, the quality of the air indoors can affect their health.

Remodeling or renovating an existing home has the potential to release indoor pollutants. An Introduction to Community Health () The oxygen formed ozone, shielding the sun's ultraviolet rays and allowing many classes of life to emerge in newly formed coastal shelves.

The Sun () No oxygen means no ozone, a gas whose molecules are made of three oxygen atoms bound together, rather than the usual two.

Presentation National High School – SCHEME OF WORK /