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Temperature is an important factor affecting hydrocarbon biodegradation rate. The optimum temperatures for hydrocarbon biodegradation are dependent on the environment of the hydrocarbons. For instance, Figure 1 shows that the highest biodegradation rate for soil environment will occur between 30-40 °C, for freshwater environment between 20-30 °m³C and for marine environment between 15-20 °C.<ref name="6Das" />
 
Temperature is an important factor affecting hydrocarbon biodegradation rate. The optimum temperatures for hydrocarbon biodegradation are dependent on the environment of the hydrocarbons. For instance, Figure 1 shows that the highest biodegradation rate for soil environment will occur between 30-40 °C, for freshwater environment between 20-30 °m³C and for marine environment between 15-20 °C.<ref name="6Das" />
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[[File:GeoWikiWriteOff2021-Aljezen-Figure1.jpg|framed|center|{{figure number|1}}summarizes the optimum biodegradation rates depending on the environment  and the needed temperature.<ref name="6Das" />]]
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[[File:GeoWikiWriteOff2021-Aljezen-Figure1.jpg|framed|{{figure number|1}}summarizes the optimum biodegradation rates depending on the environment  and the needed temperature.<ref name="6Das" />]]
    
Besides temperature, nutrient supply is a very crucial element controlling hydrocarbon biodegradation process. The concentrations of these nutrients will vary depending on the environment. For example, nitrogen, phosphorus and potassium present in low levels in freshwater wetlands due to the high demand of these elements by the plants. On the other hand, the presence of surplus nutrients can negatively impact the hydrocarbon biodegradation process.
 
Besides temperature, nutrient supply is a very crucial element controlling hydrocarbon biodegradation process. The concentrations of these nutrients will vary depending on the environment. For example, nitrogen, phosphorus and potassium present in low levels in freshwater wetlands due to the high demand of these elements by the plants. On the other hand, the presence of surplus nutrients can negatively impact the hydrocarbon biodegradation process.

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