Pilot study of a community-based PM_2.5 educational intervention: impacts on behavior, exposure, and pulmonary...

Area of Science:

• Environmental Health
• Public Health
• Gerontology

Background:

• Particulate matter (PM) is a Group 1 carcinogen linked to cardiopulmonary and neurological issues.
• Community-based strategies to reduce PM exposure in vulnerable Korean populations are limited.
• Older adults are particularly susceptible to the adverse health effects of PM exposure.

Purpose of the Study:

• To evaluate the feasibility and effectiveness of a nurse-delivered educational intervention.
• To improve protective behaviors against indoor particulate matter (PM2.5) exposure.
• To assess the impact on indoor air quality and pulmonary function in older adults.

Main Methods:

• A cluster non-randomized controlled trial involving 59 adults aged 65+ in Incheon, South Korea.
• Intervention group received education, practical training, and alerts; control group received usual care.
• Outcomes measured included awareness, behaviors, indoor PM2.5 levels, and spirometry at baseline and 6 weeks.

Main Results:

• The intervention group showed significant improvements in predicted FEV1% and FEV6% (p<0.05).
• Indoor PM2.5 concentrations were significantly lower in the intervention group (p=0.010).
• The intervention group had a significantly lower rate of PM2.5 exceedance events (p=0.042).

Conclusions:

• A brief, community-based educational intervention is feasible and well-received by older adults.
• The intervention led to short-term improvements in indoor air quality and pulmonary function.
• Larger, longer trials are needed to confirm findings and recommend scalable programs for sustained PM2.5 risk reduction.