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Outdoor Work Air Quality Cheat Sheet During Severe Weather

June 17, 2026 · The Clime Team
Outdoor Work Air Quality Cheat Sheet During Severe Weather

Severe weather events can significantly impact outdoor air quality, posing health risks to workers. Understanding and mitigating these risks is crucial for maintaining a safe work environment.

Understanding Air Quality During Severe Weather

Severe weather conditions, such as wildfires, storms, and extreme heat, can degrade air quality by introducing pollutants like smoke, dust, and allergens into the atmosphere. These pollutants can irritate the respiratory system, leading to discomfort or more serious health issues.

Monitoring Air Quality

Regularly check the Air Quality Index (AQI) to assess current air quality levels. The AQI categorizes air quality as follows:

  • Good (0-50 AQI): Air quality is satisfactory, and air pollution poses little or no risk.
  • Moderate (51-100 AQI): Air quality is acceptable; however, some pollutants may be a concern for a small number of individuals.
  • Unhealthy for Sensitive Groups (101-150 AQI): Sensitive individuals may experience health effects; the general public is less likely to be affected.
  • Unhealthy (151-200 AQI): Everyone may begin to experience health effects; sensitive groups could experience more serious effects.
  • Very Unhealthy (201-300 AQI): Health alert: everyone may experience more serious health effects.
  • Hazardous (301-500 AQI): Health warning of emergency conditions; the entire population is more likely to be affected.

Monitoring the AQI helps in making informed decisions about outdoor activities and work.

Protective Measures for Outdoor Workers

Employers should implement strategies to protect workers during severe weather:

  • Limit Outdoor Exposure: Reduce the duration of outdoor work during periods of poor air quality.
  • Reschedule Non-Essential Tasks: Postpone tasks that are not critical to minimize exposure.
  • Provide Personal Protective Equipment (PPE): Equip workers with appropriate PPE, such as NIOSH-approved respirators, to reduce inhalation of harmful particles.
  • Ensure Hydration: Encourage regular water intake to help the body cope with heat and maintain overall health.
  • Monitor Health Symptoms: Be vigilant for signs of heat-related illnesses or respiratory distress among workers.

Indoor Air Quality During Power Outages

Power outages during severe weather can affect indoor air quality:

  • Use of Portable Generators: Operate generators outdoors, at least 20 feet away from buildings, to prevent carbon monoxide buildup indoors.
  • Ventilation: If indoor air quality is compromised, use fans to increase air circulation, but avoid using them when indoor temperatures are in the mid-90s or higher, as they may not prevent heat-related illnesses. (epa.gov)
  • Sealing Openings: Keep windows and doors closed to prevent outdoor pollutants from entering, especially during events like wildfires. (cdc.gov)

Employer Responsibilities

Employers are obligated to protect workers from recognized hazards, including those posed by severe weather:

  • Training: Educate workers on the risks associated with severe weather and the measures to mitigate them.
  • Emergency Preparedness: Develop and implement emergency plans that address severe weather scenarios.
  • Health Monitoring: Regularly assess workers for symptoms related to heat stress or respiratory issues.

Conclusion

Maintaining air quality during severe weather is essential for the health and safety of outdoor workers. By monitoring air quality, implementing protective measures, and adhering to employer responsibilities, the risks associated with poor air quality can be significantly reduced.

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Frequently Asked Questions