Correlating transportation noise frequencies with ultrafine particulate emissions by source: Implications for environmental health studies

Leaffer, Douglas J.; Mailk, Rafia; Tracey, Brian H.; Gute, David M.; Hastings, Aaron; Roof, Christopher J.; Noel, George

doi:10.1121/2.0000545

Cited by 1 publication

(1 citation statement)

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“…For more precise correlations of UFP and noise, analyzing the spectral content of the in-transit noise would be informative to verify if the low frequency content of the measurements correlates with the UFP exposure inside the vehicle. We believe that spectral analysis of selected noise peaks will demonstrate low frequency noise (250 Hz and below) to be correlated with higher UFP levels predominately from diesel exhaust emissions from large trucks and heavier gross weight vehicles, with lower UFP concentrations corresponding with high frequency noise (>2000 Hz) [23].…”

Section: Discussionmentioning

confidence: 99%

Wearable Ultrafine Particle and Noise Monitoring Sensors Jointly Measure Personal Co-Exposures in a Pediatric Population

Leaffer

Wolfe

Doroff³

et al. 2019

IJERPH

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Epidemiological studies have linked both traffic-related air pollution (TRAP) and noise to adverse health outcomes, including increased blood pressure, myocardial infarction, and respiratory health. The high correlation between these environmental exposures and their measurement challenges have constrained research on how simultaneous exposure to TRAP and traffic noise interact and possibly enhance each other’s effect. The objective of this study was to deploy two novel personal sensors for measuring ultrafine particles (UFP, <100 nm diameter) and noise to concurrently monitor real-time exposures. Personal UFP monitors (PUFP, Enmont, LLC) were paired with NEATVIBEwear™ (Noise Exposure, Activity-Time and Vibration wearable), a personal noise monitoring device developed by the authors (Douglas Leaffer, Steve Doroff). A field-test of PUFP monitors co-deployed with NEATVIBEwear logged UFP, noise and ambient temperature exposure levels at 1-s resolution in an adolescent population in Cincinnati, OH to measure real-time exposures in microenvironments (transit, home, school). Preliminary results show that the concurrent measurement of noise exposures with UFP is feasible in a sample of physically active adolescent participants. Personal measurements of UFP and noise, measured prospectively in future studies, will enable researchers to investigate the independent and/or joint-effects of these health-relevant environmental exposures.

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Section: Discussionmentioning

confidence: 99%