Enriched Air Nitrox

Enriched Air Nitrox

Length: 1086 words (3.1 double-spaced pages)

Rating: Excellent

Open Document

Essay Preview

More ↓
The following should allow anyone who is either unfamiliar with Nitrox, or confused by the terminology, to reach a point where they can follow a discussion on the subject. It may also serve as a starting point for those who wish to learn about Nitrox.
The biggest question is "What is Nitrox?" Well, the air we breathe is Nitrox. Air consists mostly of two gases: Nitrogen (79%) and Oxygen (21%), and there are some trace gases that are also in the air, they exist in such small quantities that we can ignore them. Nitrox is also referred to as "Enriched Air" or air that has been enriched with Oxygen so that it has more than 21% of Oxygen – usually 22% to 40% - blends that are usually used in Recreational No Decompression Dives. But really, Nitrox refers to any Nitrogen-Oxygen gas-mix, including blends that have less oxygen than air. For the purpose of Technical Diving, you learn to use Nitrox gas mixes from below 21% to up to 100% - although the richer mixes are usually used only for decompression.
Although Enriched Air Nitrox is relatively new to recreational diving, military and research divers have been using it to extend their no decompression limits for over 50 years. In fact, the first recorded Enriched Air mix was recorded by Draeger as early as 1917. The United States Navy and British Royal Navy studied and used Enriched Air in the 1940's and the United States Oceanic and Atmospheric Administration (NOAA) have more than 20 years field experience with Enriched Air used by their research divers.
There is also the question of how do you name a Nitrox mix. To distinguish one blend of Nitrox from another, the diving community uses the abbreviation EANx (for "Enriched Air Nitrox") followed by the Oxygen content percentage. For Example EANx36 is a Nitrox blend that contains 36% of Oxygen and the balance (64%) of Nitrogen: you would read "EANx36" as "Enriched Air 36" or "Enriched Air Nitrox 36" if saying it aloud. The most two common blends used in recreational diving are EANx32 and EANx36.
Why do you want to use Nitrox? You can stay longer underwater! The primary application of Nitrox is that divers use it to extend the no-decompression limit beyond normal air no-decompression limits. Nitrogen dissolves into your body while you are breathing air under pressure. The longer and deeper you dive, the more Nitrogen you absorb.

How to Cite this Page

MLA Citation:
"Enriched Air Nitrox." 123HelpMe.com. 19 Jan 2019
    <https://www.123helpme.com/view.asp?id=158724>.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Essay What is Nitrox?

- ... Breathing nitrox is not believed to reduce the effects of narcosis (see Appendix 4), as oxygen seems to have equally narcotic properties under pressure as nitrogen. There is evidence that suggests a reduction of post-dive fatigue. particularly on older or obese divers. However a double-blind study to this test this found no statistically significant reduction in reported fatigue. Other studies with a number of varied dive profiles, and also different levels of exertion, which would be necessary to investigate the issue....   [tags: gasses, embolism, benefits]

Research Papers
1329 words (3.8 pages)

Nuclear Fuel Cycle Is Built On Enriched Uranium Fuel, Proliferation Concerns Associated With Enrichment And Reprocessing

- To the extent that the deployed fuel cycle is built on enriched uranium fuel, proliferation concerns associated with enrichment and reprocessing technologies must be addressed. One option is the use of alternative nuclear fuel cycles and recycling. This would allow to produce ultra-high burn-up fuels and would create waste forms that pose far less long-term concerns. This option presents a central tradeoff: the more fuel is recycled, the better its waste form. However, more separation steps increase the technical challenges....   [tags: Nuclear power, Enriched uranium]

Research Papers
859 words (2.5 pages)

The Truth of the Air Essays

- ... Furthermore, soil and water are to some extent interchangeable with each other. They are both fundamental to the environment. Due to the fact that acid rain is acidic when it descends into a large body of water it then makes it acidic as well. The normal pH of lakes and streams for instance, is between six and eight and when acid rain merges with water it begins to lower its pH level (What Is Acid Rain). To retrieve its normal pH level is quite burdensome, but it can be obtained. The method of recouping its pH level is by a process of “buffering capacity” which requires soil to neutralize its pH levels (What Is Acid Rain)....   [tags: air quality, pollution ]

Research Papers
1755 words (5 pages)

The Health Problems Of The Air Pollution Essay

- ... Smog is the after product that is produced from factories and is usually in a black cloud form. This black cloud form is a bad production of carbon emissions. Air pollution is a problem because there are many different factors that air pollution can ruin. As stated by the EPA, “Air pollution can damage trees, crops, other plants, lakes, and animals. In addition to damaging the natural environment, air pollution also damages buildings, monuments, and statues” (EPA 4). This quote illustrates that air pollution is a constant problem for the environment....   [tags: Air pollution]

Research Papers
1742 words (5 pages)

The Effects Of Air Pollution On The Environment Essay

- Air pollution is a very big problem in our environment today, and the reason why is because of the cars, buses, planes, boats, and any factory plants that are producing smoke which causes a lot of radiation; many people that live near those industrial areas are in big risk of having cancer and the air they breathing is just affecting their health even more, many electric powered cars, which many companies says they are environmentally friendly has a battery made in a plant that affects the environment, and also the hybrid cars do have gasoline powered engines which will also affect the environment since they have mufflers on the back of the cars throwing out carbon monoxide putting many peop...   [tags: Air pollution]

Research Papers
1384 words (4 pages)

Air Pollution Is A Big Problem Essay

- Air pollution is a big problem in our environment today, and the reason why is because of the cars, buses, planes, boats, and any factory plants that are producing smoke which causes a lot of radiation, and people that live near those industrial areas are in big risk of having cancer and the air they breathing is just affecting their health even more, even hybrid powered cars which many companies says they are environmentally friendly has a battery made in a plant that affects the environment, and also the hybrid cars do have gasoline powered engines which will also affect the environment since they have mufflers on the back of the cars throwing out carbon monoxide putting many people’s heal...   [tags: Air pollution]

Research Papers
1383 words (4 pages)

What Is Air Pollution? Essay

- What is air pollution. In recent years the demand for electricity such as thermal power, iron and steel etc has increased rapidly, but with this demand also comes the problem of air pollution. Air pollution is the presence of a chemical or a substance which is harmful or has a poisonous effect introduced into the air. Whereas, Toxic air pollutants, also known as hazardous air pollutants, are pollutants that cause cancer and other serious health effects such as asthma, damage to the immune system, and environmental effects....   [tags: Air pollution]

Research Papers
842 words (2.4 pages)

Air Travel Industry Q&A Essay

- 1. Consider the air travel industry’s microenvironment. Using Figure 3.1, indentify the main companies and other organisations forming the microenvironment. Microenvironment is the factors that impact to organisation ability to serve its customers. In air travel industry, microenvironment can be say that is • Suppliers: Transport industry need vehicle to serve its customers, thus Boeing and Airbus, aerospace company, are main suppliers of air transport. Moreover, serving meal is one of its services that provided almost every flight....   [tags: Air Travel]

Research Papers
786 words (2.2 pages)

Air Pollution And Its Effects On The Environment Essay example

- Air is valuable essence of every living thing on earth, especially the human race. Clean air is key to sustain the equilibrium of life on this planet. Having deficient air quality can lead to multiple consequences such as emissions from various substances, both natural and human caused. Air is a combination of several gases that are invisible and odorless. Air pollution occurs when the environment contains gases, dust, fumes or other harmful substances. The amounts which are harmful to humans and animals could also damage to plants and materials....   [tags: Air pollution]

Research Papers
1386 words (4 pages)

Significant Developments in the Regulation of Air Travel Essay

- In December 1903 at Kitty Hawk, North Carolina, Orville and Wilber Wright were successfully in their attempt to fly a heavier that air contraption. This event was labeled in history as the “birth of aviation”. The flight occurred in a field which did not have a paved runway and only enough room to take off and land. Additionally, they had no lights or terminal. More importantly they had no regulatory governing body to oversee operations (Young & Wells, 2011). There are various events through history of Air Transportation which have led to the advent and development of the aviation oversight program in the United States....   [tags: Air Travel]

Research Papers
1008 words (2.9 pages)

As long as you stay within reasonable limits, when you ascend and surface, your body eliminates the excess Nitrogen through normal respiration without any difficulties. If you exceed reasonable limits, the excess Nitrogen may form bubbles and cause Decompression Sickness (DCS). Dive tables and dive computers help you track time and depth and keep Nitrogen within reasonable limits. Enriched Air replaces some of the Nitrogen you breathe underwater with Oxygen, so that during your dive, you absorb less Nitrogen than you would be breathing normal air. Your body metabolizes and otherwise absorbs the extra Oxygen, so that, within the limits of the recreational enriched air diving, it doesn't contribute to bubble formation after a dive. This means that you have longer no decompression limits for each depth than if you do using air. How much longer, depends upon the Enriched Air blend you chose, with more oxygen providing longer no-decompression time.
You feel less tired after repetitive dives on Nitrox. Well, some might argue that it isn't true, but any instructor who works and completes 3 to 5 dives a day will tell you that they do feel a whole lot better when these are completed using Nitrox. The best way is to try it yourself, but beware that this is only noticeable when completing at least 2 dives in one day – as your body doesn't have to work as hard to flush the excess Nitrogen out of your system, you feel less tired.
People have a tendency to think Nitrox is dangerous and is meant to be used by highly trained professional divers and especially divers who want to go deep… Actually recreational no decompression Enriched Air dives have a maximum limit of 40 meters / 120 feet.
The full advantages and benefits of Enriched Air are truly only felt when diving between the depths of 21 and 36 meters or 70 to 110 feet , either on a No Decompression dive, or when Tech Diving as a travel gas or decompression gas.
What are the hazards of diving on Nitrox? As mentioned earlier, there is a trade-off - you can't get something for nothing.
Oxygen Toxicity: Underwater, Oxygen has its own sets of problems, some of which are significantly more hazardous than Nitrogen. As you reduce your Nitrogen exposure, you increase your Oxygen exposure. Much of what you will learn in the PADI Enriched Air course and the TDI Basic Nitrox course deals with keeping your Oxygen exposure within safe limits whilst diving. In fact, Oxygen Toxicity is the most serious of the potential hazards unique to diving on Enriched Air Nitrox and tracking your Oxygen exposure becomes your priority.
Equipment considerations: Most of the special procedures you need to dive safely with and handle Enriched Air Nitrox relate to its higher Oxygen content. By itself, Oxygen won't burn or explode, but many substances react with Oxygen and will burn vigorously or explode when in contact with a high amount of Oxygen: any piece of equipment that will come into direct contact with Enriched Air Nitrox will have to be dedicated solely to diving using Nitrox. Nitrox Cylinders have to be easily visually identifiable – or the consequences could be fatal. Standard Regulators may be used with mixes up to EANx40, depending on the manufacturer's recommendations and local diving laws, but any richer mix will require specially serviced and Oxygen cleaned regulators. Other equipment you will learn to use in a Enriched Air Nitrox course are Oxygen Analyzers, which enable a diver to personally check the Oxygen content of the tank he is about to dive with – an absolute MUST of diving on Nitrox!
More complex dive planning: Enriched Air Nitrox dive planning requires a few more planning steps than diving on air, and you will have to use several tables to plan your decompression and Oxygen exposure. Most divers don't find these additional steps too complicated, but the process has more potential for error, and less tolerance for error if you make one.
Whatever the circumstances, "Plan your dive and Dive your plan" is always the rule!
Return to 123HelpMe.com