Table 1 Potential PFAS users and assigned risk scores.

From: Identifying and sharing per-and polyfluoroalkyl substances hot-spot areas and exposures in drinking water

Risk Score

Facility

Upper Magnitude

Source

100

Department of Defense

10,000 µg/L (28 PFAS)

AFFF*

Landfill

1,000 µg/L (13 PFAS)

Waste streams from landfills

Chemical manufacturing Industries

1,000 µg/L (11 PFAS)

PFAS/ Fluoropolymer manufacturer and user

75

Airport

100 µg/L (28 PFAS)

AFFF*

Fire Training Areas

100 µg/L (28 PFAS)

AFFF*

Petroleum Refineries

10 µg/L (28 PFAS)

AFFF*

50

Textiles

10 µg/L (13 PFAS)

Fluoropolymer coating

Furniture

10 µg/L (13 PFAS)

Fluoropolymer coating

Paper

10 µg/L (13 PFAS)

Fluoropolymer coating

25

Rubber/Plastics

10 µg/L (13 PFAS)

Fluoropolymer coating

Fire Station

Not Available

PFAS Foam

Fabricated Metal

Not Available

Fluoropolymer coating

  1. *AFFF - Aqueous Film- Forming Foam.