However, exposure to high levels of H2S, or lower levels for extended periods of time, could cause people to lose their ability to smell it, so relying on smell can be dangerous.

A group of researchers from local universities are working to make sure South Bay community members living through the sewage crisis are heard through science.

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Their personal H2S monitors each detected alarming levels of hydrogen sulfide exceeding ... according to an investigation update in November. RELATED: Deadly Deer Park chemical leak triggered ...