Sustainability Language

Water, Waste & Pollution

Biological hazard / biohazard

A biological substance or condition that can harm human health, animal health or the environment — the hazard class behind biosafety controls and bio-waste rules.

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Definition

Any biological substance or condition that may pose a risk to human health, animal health, or the environment — including bacteria, viruses, fungi, toxins, bloodborne pathogens and contaminated biological materials. "Biohazard" is the common label applied to such materials and to the waste streams containing them.

References

Overview

What it means

In sustainability practice the term anchors two fields: biosafety (containment principles, practices and controls that reduce exposure, formalised in laboratory biosafety levels BSL-1 to BSL-4) and bio-waste management (regulated collection, sterilisation and disposal of infectious or contaminated waste, for example from healthcare). The trefoil biohazard symbol marks materials requiring special handling.

How it is used

Employers assess biological hazards in workplace risk assessments; laboratories operate under biosafety programmes and guidance such as the CDC/NIH BMBL; waste operators segregate biological waste for autoclaving or incineration. In ESG and occupational-health reporting, exposure to biological hazards is a worker-safety indicator.

Why it matters

Pandemic preparedness, healthcare waste from a growing global health sector, and biotechnology expansion all raise the volume of biological material in circulation — making biohazard management a standing environmental-health and worker-protection issue.

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