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PFAS Occurrence In Stormwater Management Ponds: Land Use Impacts And Contaminant Relationships.pdf

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Preview of PFAS Occurrence in Stormwater Management Ponds: Land Use Impacts and Contaminant Relationships
🔗 Source: chesapeakestormwater.net
📊 Size: 13.58 MB
👤 Author: Needham, Trevor P
⬇️ Downloads: 28

Summary

This study investigates the presence of PFAS—including perfluoroalkyl acids (PFAAs) like PFOS and PFOA, and polyfluoroalkyl substances (PFAS) precursors—in stormwater management ponds across diverse land uses.

Key Points:

- PFAS Overview:
- PFAAs are degradation products of PFAS, with PFOS and PFOA most commonly tested.
- PFAS are not fully fluorinated, possessing a 'weakness' due to non-fluorine atoms, making them potential precursors for PFAAs.
- Some PFAS are persistent bioaccumulative toxic (PBT) substances.

- PFAS in Wet Ponds:
- Wet ponds are designed as best management practices (BMPs) within stormwater infrastructure to reduce water quality impairments.
- They function as sediment traps, aiding in the study of mobilized contaminants.
- The study analyzed wet ponds from residential, commercial, and industrial sites, each with distinct land use patterns and drainage areas ranging from 1-100 acres.

Findings:

The research aimed to understand the relationship between PFAS occurrence and land use, focusing on:

1. Prevalence of PFAS: To determine if certain land uses contribute more significantly to PFAS presence in stormwater ponds.
2. Contaminant Capture: Evaluating wet ponds' potential as natural filters for PFAS and other contaminants.
3. Land Use Impact: Assessing how drainage area characteristics influence PFAS levels in pond sediment.

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Description

Perfluoroalkyl substances (PFAS) and polyfluoroalkyl substances (PFASs), including PFOS and PFOA, were found in stormwater management pond sediment, with occurrence linked to land use. These compounds, known for their persistence and toxicity, can bioaccumulate in organisms, posing environmental and health risks. Research highlights the need to understand their sources and impacts.

Technical Information

  • File Format: PDF
  • File Size: 13.58 MB
  • Pages: 151
  • Language: EN
  • Author: Needham, Trevor P
  • Total Downloads: 28
  • Last Updated: 3 days ago

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PFAS guidePFAS tutorialOccurrence guideOccurrence tutorialStormwater guideStormwater tutorialManagement guideManagement tutorialPonds: guidePonds: tutorialLand guideLand tutorialImpacts guideImpacts tutorialContaminant guideContaminant tutorialRelationships guideRelationships tutorial

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