YPIE Scientist: Helena Cruz
- Marisa Swift
- May 27
- 2 min read

Research: Predicting Air Quality for Climate Justice
Research Location: Yonkers, NY
Mentor: Matthew Brunelle
Abstract:
Extreme heat is becoming a growing concern due to climate change, disproportionately affecting vulnerable populations. This study investigates the relationship between heat and environmental factors, specifically in Yonkers, New York, to propose targeted interventions for health risk reduction. Using temperature data collected from online weather sites like the EPA and NOAA, combined with air quality PM2.5, the research aimed to assess the impact of heat on different communities. Statistical analyses, including correlation and regression models, were performed to examine the relationship between temperature, air quality, and demographic factors. Predictive models were also developed to simulate the effects of increasing tree canopy coverage on local temperatures. Results showed that neighborhoods with less green cover experienced temperatures up to 5.2°F higher than those with more greenery. A moderate positive correlation (r = 0.63, p < 0.05) was found between air quality and temperature, indicating that poorer air quality was associated with higher temperatures. This data, along with maps of cooling spaces and ways to avoid the heat was shared through an app to directly aid those living in hotter neighborhoods. These findings suggest that urban greening strategies could significantly mitigate heat-related health risks in vulnerable communities in Yonkers.
About this Scientist:
Helena Cruz is a junior and full IB student at Yonkers High School with a strong interest in environmental justice, applying machine learning to support vulnerable communities. She combines this passion with data and earth science through volunteer work and STEM-focused extracurriculars. In the future she plans to major in environmental engineering and continue playing the flute, with the goal of one day mentoring students and expanding opportunities that are often inaccessible to youth in Yonkers.
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