Environmental
What is 'polyfluoroalkyl substances' (PFAS) and why is it an emerging concern in Illinois real estate?
AA type of lead paint; regulated under pre-1978 disclosure requirements
BSynthetic chemicals ('forever chemicals') used in firefighting foam and consumer products that persist in the environment and have been detected in groundwater near airports and military sites✓ Correct
CAgricultural chemicals used in Illinois corn farming; not a real estate concern
DA type of mold that grows near industrial water supplies
Explanation
PFAS (per- and polyfluoroalkyl substances) are synthetic 'forever chemicals' that persist in the environment and have been detected in groundwater, particularly near airports (from firefighting foam) and military installations. Illinois has significant PFAS contamination near some airports and industrial sites. PFAS are an emerging contamination concern—property near potential PFAS sources should be included in Phase I/II environmental assessments.
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