Chapter 02 · Nature, land & waterWater, Waste & Pollution
Legacy pollution
Definition
Legacy pollution is pollution that remains from past activities, practices or incidents and continues to create present or future risk.
References
This reference provides supporting context for how “Legacy pollution” is defined and used.
Overview
What it means in practice
Legacy pollution should be read as a pollution, water or waste term. Its meaning depends on the pollutant, source, pathway, location, threshold and measurement method.
In practice, users should state the boundary, source, measurement basis and evidence. That keeps legacy pollution specific enough for review without turning it into a broader claim.
Why it matters
Legacy pollution matters because pollution language can trigger different duties, risk judgments and community concerns depending on concentration, exposure, route and local conditions.
Common misconception
A common error is to use Legacy pollution without naming the pollutant, source, threshold or exposure route. Those details are what make the term reviewable.
Review questions
What source, boundary or measurement method gives the term meaning? What evidence supports it? What limitation would change how a reader interprets the claim?
How it is used
In professional practice, “Legacy pollution” helps designers, manufacturers, procurement teams, life-cycle practitioners and waste managers describe or assess pollution that remains from past activities, practices or incidents and continues to create present or future risk. It is commonly encountered in product design, procurement, footprinting, material selection, production and end-of-life decisions.
A credible application identifies the product system, life-cycle stages, functional unit, geography, timeframe and measurement method.