Synthetic Organic Materials 59 



HYDROCARBONS IN THE MARINE ENVIRONMENT 61 



Occurrence, Formation, and Degradation 61 



Hydrocarbon Gases 61 



REDOX POTENTIAL, pH, AND ALKALINITY 62 



Redox Potential 62 



pH 63 



Alkalinity 65 



IMPACT OF LIFE PROCESSES ON 



RADIOACTIVE AND STABLE NUCLIDES 66 



REFERENCES 67 



PARTICIPANTS 79 



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