DOC-Labor
Dr. Stefan Huber
Drinking Water - Example 3
Further examples of Chinese Tapwaters, here with OND included

Site F:
Extremely high in DOC (6 ppm). High in Biopolymers and LMW Neutrals. Biopolymers contain about 50 % proteinic matter (high OND/DOC ratio). A Surface water subjected to flocculation and chlorination. High in Nitrate (> 30 ppm) and even ammonium.
Site G:
Low in DOC (about 1 ppm), but very high in nitrate (> 20 ppm). This is remarkable as nitrate from agricultural activity usually correlates with high DOC.


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Examples: