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Table 2 Examples of microbial and chemical contaminants found in oceans that pose health risks to humans, possible sources of the contaminants, and typical symptoms or the disease induced by exposure to the contaminant.

From: Linking the oceans to public health: current efforts and future directions

Contaminant Possible source Symptoms or disease
Vibrio cholera Human sanitary waste Cholera
Norwalk Virus Human sanitary waste Gastroenteritis
Mercury Burning coal, industrial use Neurodevelopmental toxicity, adult toxicity
Persistent organic pollutants Industrial waste Immunologic, cancer, reproductive