Salinating The Planet: Amount of Urine and Urea Produced by The World Population
This article explores the amount of urea produced by an average man and the world population. Exploring the numerical values and analysing the properties of urine.
Salinating the Planet: Amount of Urine and Urea Produced By the World Population
© 2009 Dr.P.Elayaraja
Urine
The liquid waste product of the body secreted by the kidneys is known as urine. The blood is filtered by the kidneys and the waste is excreted by the process called urination through the urethra. The liquid waste product generated as a result of cellular metabolism is rich in nitrogen and requires elimination form the blood stream.


Composition of Urine
Urine is a transparent solution and can be colourless to amber coloured with 95% water. The major part of the remaining 5% is the urea. Dissolved salts and other organic compounds are also found.

The smell of urine can be affected by the kind of food we intake. Asparagus, curry, alcohol, coffee, meat, onion and sugar in foods can make the urine smelly.

Uses of urine
Urine also contains proteins and other substances that form ingredients of many prescription drugs. Urine from pregnant woman contains enough human chorionic gonadotropins.

Pregnant mare urine is a rich source of oestrogen.

Urine is used for manufacturing gun power.

It is used as a mordant to help prepare wool.
Urine contains large quantities of nitrogen well as significant quantities of dissolved phosphates and potassium, the main macronutrients required by plants. Diluted at least 8:1 with water it can be applied directly to soil as a fertilizer.

Ecological consequences such as eutrophication, can result from an influx of nutrient rich effluent into aquatic or marine ecosystems. The fertilization effect of urine has been found to be comparable to that of commercial fertilizers with an equivalent NPK rating.

Volume
The amount of urine produced depends on numerous factors including state of hydration, activities, environmental factors, size, and health. In adult humans the average production is about 1 – 2 litre per day. The average amount of urea in the urine of an average human is 15 grams per day.
Now to the Statistics

Amount of urine produced by a man in a year
1.5 x 365= 547.5 Litres
Amount of urea produced by a man in a year
15 x 365 = 5,475 grams = 5.475 Kg
Amount of urine produced by the Indian population in a year
547.5 x 1,172,720,000 = 641,712.3 Million Litres
Amount of urea produced by the Indian population in a year
5.475 x 1172720000 = 6,420,642,000 Kg = 6.421 million Tonnes
Amount of urine produced by the world population in a year
547.5 x 6,707,000,000 = 3,672,082,500,000 Litres = 3,672.082 billion Litres
Amount of urea produced by the world population in a year
5.475 x 6,707,000,000 = 36,720,825,000 Kg = 36.721 million Tonnes

Ginormous quantity is it? Imagine, where they go?
© 2009 Dr.P.Elayaraja

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On November 18, 2009 at 2:21 pm
Nice one! Very interesting, I never knew a lot of these things…
On November 18, 2009 at 4:32 pm
very interesting calculation , well done..thought provoking too…
On November 18, 2009 at 4:52 pm
Interesting article. Amazing how many uses there are for it too. I’m sure I heard somewhere that urine was used in the tanning process too!
On November 18, 2009 at 5:03 pm
Nice one…
On November 18, 2009 at 6:37 pm
Quite interesting article.Thanks.
On November 18, 2009 at 7:31 pm
A facinating article. My Grandma used to say that urine was a very good treatment for chill blanes.
On November 18, 2009 at 10:02 pm
that was greats articles for health..
On November 18, 2009 at 10:56 pm
Very important topic
On November 18, 2009 at 11:54 pm
Got to know about it in details—interesting.It is said urine is harmless.
On November 19, 2009 at 12:46 am
this is a great article. fun facts
On November 19, 2009 at 12:56 am
nice article.
On November 19, 2009 at 1:47 am
interesting article
On November 19, 2009 at 2:01 am
Int.eresting article but i draw the line at drinking piss. LMAO
On November 19, 2009 at 7:56 am
Wow! I didn’t know there was so much to learn about urine. A good article.
Christine
On November 19, 2009 at 9:43 am
Very novel one and very informative.
On November 19, 2009 at 9:44 am
Good article with loads of information.
On November 19, 2009 at 1:00 pm
Great article, never known this fact
On November 19, 2009 at 9:07 pm
Very fasinating article.There is a lot of interesting facts about urine included here that I am quite sure many of us did not know including myself! Very well presented and well written!
On November 25, 2009 at 4:43 pm
OO… Great equations!! And awesome pictures!!