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Production and Measurement of Organic Particulate Matter in the Harvard Environmental Chamber
Published on: November 18, 2018
Particulate matter oxidative potential from waste transfer station activity
Krystal J Godri1, Sean T Duggan, Gary W Fuller
1Environmental Research Group, MRC-HPA Centre for Environmental Health, School of Biomedical and Health Sciences, King's College London, London, United Kingdom.
Environmental Health Perspectives
|April 7, 2010
Summary
Waste transfer stations (WTS) emit particulate matter (PM) with high oxidative potential due to trace metals. This PM poses a potential health risk to nearby communities, impacting cardiorespiratory health.
Area of Science:
- Environmental Science
- Public Health
- Toxicology
Background:
- Ambient particulate matter (PM) exposure is linked to adverse cardiorespiratory health outcomes.
- Waste transfer stations (WTS) in London are sources of high PM concentrations due to heavy-duty diesel vehicle traffic.
Purpose of the Study:
- To quantify the contribution of WTS emissions to ambient PM mass concentrations.
- To assess the oxidative potential of PM emitted from WTS.
Main Methods:
- Collected daily PM10 samples near a WTS for mass concentration analysis.
- Utilized source apportionment to differentiate local and background PM sources.
- Measured PM oxidative potential via antioxidant depletion assays and quantified trace metals.
Main Results:
- Elevated PM10 mass concentrations were observed on days with WTS activity.
- PM oxidative potential correlated with WTS emissions, influenced by wind direction.
- Increased oxidative potential was linked to higher concentrations of aluminum, lead, and iron.
Conclusions:
- PM from WTS activity exhibits elevated trace metal content and increased oxidative potential.
- WTS emissions represent a potential cardiorespiratory health risk for adjacent residential populations.
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