Māris kļaviņŠ, azamat azizov, JĀnis zaļoksnis environment, pollution, development: the case of uzbekistan

Figure 8.6. 
Reactions 
of nitrogen compound 
transformation in soil 
and water

---

172 
ENVIRONMENT, POLLUTION, DEVELOPMENT:  THE CASE OF UZBEKISTAN
phosphorus also gets into the water in the polyphosphate form. How-
ever, often more than 90% of the total amount of phosphorus com-
pounds may be organic compounds, or associated with suspended 
substance. 
The major organic phosphorus compounds, found in waters, are 
nucleic  acids,  proteins,  their  degradation  products,  vitamins,  ATP, 
ADP, carbohydrates, their phosphoric acid esters, phospholipids. The 
most important inorganic phosphorus compound found in waters 
(particularly in the sediment phase), is hydroxyapatite, and various 
phosphorous compounds which have sorbed on particles of clay, 
carbonate,  iron  hydroxide.  A  significant  proportion  of  phosphorus 
compounds can also be found in the waters in the form of colloidal