Chapter 02 · Nature, land & waterWater, Waste & Pollution
Best available techniques (BAT)
Definition
Best available techniques are the most effective and advanced practicable methods for preventing or reducing emissions and environmental impacts in a regulated context.
References
This reference provides supporting context for how “Best available techniques (BAT)” is defined and used.
Overview
What it means in practice
Best available techniques (BAT) 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 best available techniques (bat) specific enough for review without turning it into a broader claim.
Why it matters
Best available techniques (BAT) 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 Best available techniques (BAT) 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
The term appears in product design, procurement, footprinting, material selection, production and end-of-life decisions, where designers, manufacturers, procurement teams, life-cycle practitioners and waste managers use it to classify, assess or communicate the most effective and advanced practicable methods for preventing or reducing emissions and environmental impacts in a regulated context.
Its correct use depends on the product system, life-cycle stages, functional unit, geography, timeframe and measurement method.