ISO/TS 19677:2025 PDF

Overview

ISO/TS 19677:2025 - "Assessing the adverse impact of wildland fires on the environment and to people through environmental exposure" - is a Technical Specification that provides a structured framework to evaluate the environmental and human-health consequences of wildland fires and related firefighting activities. It covers natural and man‑initiated wildland fires (including prescribed burns and agricultural fires) but excludes peat and coal‑seam fires. The document sets out requirements and recommendations to quantify impacts and to establish post‑fire mitigation measures, and it is intended to support the development of standardized assessment protocols.

Key Topics

• Environmental compartments addressed: air, water, soil, vegetation and wildlife.
• Human exposure: effects of smoke and gas on exposed populations and firefighters; guidance for minimizing health threats.
• Operational impacts: effects on food production, land/sea/air traffic, and the built environment (quantification and mitigation).
• Firefighting activities: environmental consequences of suppression tactics and chemical additives.
• Quantification and mitigation: requirements and recommendations to measure impacts and plan restoration and mitigation actions.
• Wildland fire variables: fuel definitions, fire behavior factors and relevant incident descriptors.
• Guidance for decision‑making: intended for incident commanders when selecting strategies, tactics and restoration priorities.
• Informative annexes: case incidents (Annex A), airborne combustion products (Annex B), firefighting chemical additives (Annex C), and climate‑change impacts (Annex D).

Note: ISO/TS 19677 does not prescribe specific sampling methodologies or laboratory analysis procedures (those are covered in the ISO 26367 series), nor does it replace standards addressing direct acute toxicity or building damage.

Applications and Users

Practical uses of ISO/TS 19677 include:

• Developing site‑specific post‑fire environmental assessment protocols and mitigation plans.
• Informing incident commanders’ tactical choices to reduce environmental and health harm.
• Guiding environmental regulators, public‑health authorities and civil‑defence agencies in evaluating exposure risks and restoration needs.
• Supporting insurers, investigators and landowners in assessing environmental liability and longer‑term impacts.

Primary audiences: firefighters, fire investigators, environmental regulatory authorities, public health officials, civil defence organizations, insurers and landowners.

Related Standards

• ISO 26367-1 / ISO 26367-2 - guidelines for assessing environmental impact of fire effluents and data compilation methodology.
• ISO 13943 - fire safety vocabulary.
• ISO 14050 - environmental management vocabulary.
• ISO 19706, ISO 13571, ISO 24679-1 - standards addressing direct acute toxicity and related fire safety topics.

Keywords: ISO/TS 19677, wildland fires, environmental impact, smoke exposure, firefighting activities, post‑fire mitigation, air quality, water contamination, soil degradation, wildfire assessment.