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Smoke Exposure

 

Exposure to smoke during fire operations can be a significant safety concern. Research has shown that smoke exposure on prescribed fires, especially in the holding and ignition positions, often exceeds that on wildfires. There are many precautions that can be taken to limit personnel exposure to smoke.

Planning

Smoke exposure needs to be considered when planning suppression tactics and prescribed fires. Simple actions, such as the following, can mitigate smoke exposures.

  • Alter line locations to minimize smoke exposure.
  • Locate firelines in areas of lighter fuels or use roads or other barriers that will require less holding, patrol, and mop-up.
  • Use flanking attack as opposed to head attack (where appropriate) in heavy smoke situations.
  • Check fire behavior forecasts for smoke and inversion potential.
  • In heavy smoke, give up acres to gain control.

Implementation

Many techniques, including the following, can help reduce the exposure of personnel to heavy smoke.

  • Rotate people out of the heaviest smoke area; this may be the single most effective method.
  • Locate camps and Incident Command Posts in areas not prone to inversions.
  • Minimize snag falling, consistent with safety concerns, to avoid putting heavy fuels on the ground that will require mop-up.
  • Change firing patterns and pre-burning (black lining) during less severe conditions to greatly reduce exposure to smoke.
  • The use of retardant, foam, or sprinklers can also significantly reduce the workload and exposure time for holding crews.

 

Category
Firefighter Health & First Aid
References
WFSTAR Module - Smoke: Knowing the Risks
FINAL REPORT Wildland Fire Smoke Health Effects on Wildland Firefighters and th…
Factors affecting smoke and crystalline silica exposure among wildland firefigh…
Wildland firefighter smoke exposure and risk of lung cancer and cardiovascular …

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WFSTAR 2025 Core Component Module Package and 2024 Fire Year in Review Now Available

Date: March 14, 2025
Questions?  Please contact:
Joe Schindel at mschindel@blm.gov
 

The 2025 Core Component Module Package for RT-130, Wildland Fire Safety Training Annual Refresher (WFSTAR) and the 2024 Fire Year in Review are now available on the NWCG website. The 2025 Core Component Module Package provides all content needed to deliver RT-130.

References:

2025 Core Component Module Package

2024 Fire Year in Review Module

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Date: March 12, 2025
Contact: Wildland Urban Interface Mitigation Committee

The NWCG Wildland Urban Interface Mitigation Field Guide, PMS 053 provides mitigation practitioners at all experience levels with recommendations on the most effective and efficient ways to accomplish mitigation work in communities at risk to wildfire damage or destruction. The content in this guide was written in coordination with the NWCG Standards for Mitigation in the Wildland Urban Interface, PMS 052.

References:

NWCG Wildland Urban Interface Mitigation Field Guide, PMS 053 

Updated, NWCG Standards for Wildland Fire Module Operations, PMS 430

Date: March 11, 2025
Contact: Fire Use Subcommittee
Wildland Fire Module Unit

The NWCG Standards for Wildland Fire Module Operations, PMS 430 standardizes procedures and expectations for Wildland Fire Modules (WFMs). These standards are to be used by staff, supervisors, specialists, and technicians for planning, administering, and conducting WFM operations. These standards will also be used as a measure of WFM qualifications, capabilities, and expected performance, for both Type 1 and Type 2 WFMs.

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NWCG Standards for Wildland Fire Module Operations, PMS 430

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Date: March 7, 2025
Contact: National Interagency Aviation Committee

The NWCG Standards for Airtanker Operations, PMS 514 establishes the standards for dispatching, utilizing, and coordinating airtankers on interagency wildland fires. These standards should be used in conjunction with the NWCG Standards for Aerial Supervision (SAS), PMS 505, NWCG Standards for Airtanker Base Operations (SABO), PMS 508, and any applicable agency plans.

References:

NWCG Standards for Airtanker Operations, PMS 514