# Linking Wildfire Smoke to Cancer

> **NIH NIH P20** · UNIVERSITY OF NEW MEXICO · 2024 · $896,145

## Abstract

Project Summary
Climate change is fueling dramatic increases in the frequency, duration, and intensity of wildfires in the Western
USA and globally. The contribution of wildfire smoke to air quality is no longer transient or negligible as recent
studies demonstrated that wildfire smoke has either stagnated or reversed previous multi-decadal progress in
reducing fine particulate matter (PM2.5) concentrations in three-quarters of states in the contiguous USA
(CONUS). Moreover, since 2016, wildfire smoke has added an average of 1 µg/m3 to annual ambient PM2.5
concentrations in the eight most affected states in the West and Midwest. Wildfires release large amounts of
particles, toxicants, and carcinogens into the atmosphere, which can impact the health of populations both near
and far from the burning sites. Studies, including our own, have documented that wildfire smoke worsens mental
health and exacerbates cardio-pulmonary diseases within days of exposure, and may cause lung injury and
obstructive airway changes within weeks to months of exposure. However, the impact of repetitive wildfire smoke
exposure on chronic health consequences remains unknown. Specifically, despite cancer relevance of wildfire
smoke and the growing population of cancer survivors, the risk for developing and surviving cancer under
repetitive insults from wildfire smoke is a significant knowledge gap. Understanding this risk is an interdisciplinary
research priority for both cancer and climate researchers. Whereas the lack of a reliable assessment of wildfire
smoke exposure has traditionally impeded scientific progress, the newest advancements in air quality modeling
have the potential to advance the field. This includes the daily wildfire-driven PM2.5 concentration estimates at
10 × 10 km resolution that is available for the entire CONUS from 2006 to 2022. Therefore, we proposed to link
the wildfire smoke data to cancer incidence and somatic mutation data to examine whether wildfire smoke affects
the risk for developing cancers (Aim 1). Aim 2 will link wildfire smoke data to cancer mortality and survival data
to assess whether wildfire smoke affects the risk for surviving cancers. With the projected increase in wildfires,
delineating these relationships has the potential to inform new public health and climate policies to better protect
vulnerable populations from contracting cancer and to improve health outcomes in cancer survivors following
wildfire smoke exposures. Finally, we will work with the Community Engagement Core to foster increased
individual- and community- level decision-making and climate health literacy by translating our team’s research
results to identified audiences using culturally-centered, science-communication approaches.

## Key facts

- **NIH application ID:** 10980346
- **Project number:** 1P20NR021824-01
- **Recipient organization:** UNIVERSITY OF NEW MEXICO
- **Principal Investigator:** Shuguang Leng
- **Activity code:** P20 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2024
- **Award amount:** $896,145
- **Award type:** 1
- **Project period:** 2024-09-11 → 2027-08-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10980346

## Citation

> US National Institutes of Health, RePORTER application 10980346, Linking Wildfire Smoke to Cancer (1P20NR021824-01). Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/grant/nih/10980346. Licensed CC0.

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