The Institute of Environmental Science and Research (ESR) has changed its name to the New Zealand Institute for Public Health and Forensic Science (PHF Science) as of 1 July 2025. The new website address is www.phfscience.nz. Visitors will automatically be redirected to the new address. Please check and update any links and bookmarks after this change.

Health risk assessment: Hydrogen sulphide

Please note: As of 1 July 2025, the New Zealand Institute for Public Health and Forensic Science (PHF Science) is the new name for the Institute of Environmental Science and Research (ESR). Research and reports published prior to this date may reference the organisation’s former name.

Summary

This fact sheet was prepared to help health protection officers in responding to incidents in which people may have been exposed to hydrogen sulphide.

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