Detection of pharmaceuticals and other personal care products in groundwater beneath and adjacent to onsite wastewater treatment systems in a coastal plain shallow aquifer.
Onsite wastewater treatment systems (OWTS) are the predominant disposal method for human waste in areas without municipal sewage treatment alternatives. Relatively few studies have addressed the release of pharmaceuticals and personal care products (PPCPs) from OWTS to groundwater. PPCP fate and transport from OWTS are important, particularly where these systems are adjacent to sensitive aquatic ecosystems such as coastal areas or wetlands. The objectives of this study were to identify PPCPs in residential wastewater and groundwater beneath OWTS and to characterize the environmental conditions affecting the OWTS discharge of PPCPs to nearby streams. The study sites are in coastal plain aquifers, which may be considered vulnerable "end-members" for subsurface PPCP transport. The PPCPs most commonly detected in the OWTS, at concentrations ranging from 0.12 μg L(-1) to 12.04 μg L(-1) in the groundwater, included: caffeine, ibuprofen, DEET, and homosalate. Their presence was related to particulate and dissolved organic carbon abundance.
East Carolina University, Department of Health Education and Promotion, Carol Belk Building, Greenville, NC 27858, United States. Electronic address: suplerk11@students.ecu.edu.
Katie L
KL
Del Rosario
East Carolina University, Department of Geological Sciences, 101 Graham Building, Greenville, NC 27858, United States. Electronic address: mitras@ecu.edu.
Siddhartha
S
Mitra
East Carolina University, Department of Health Education and Promotion, 3408 Carol Belk Building, Greenville, NC 27858, United States. Electronic address: humphreyc@ecu.edu.
Charles P
CP
Humphrey
East Carolina University, Department of Geological Sciences, 101 Graham Building, Greenville, NC 27858, United States. Electronic address: odriscollm@ecu.edu.
Michael A
MA
O'Driscoll
D003358:Cosmetics / Q000032:analysis*; D004784:Environmental Monitoring; D060587:Groundwater / Q000737:chemistry*; D004364:Pharmaceutical Preparations / Q000032:analysis*; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D053833:Wetlands
D003358:Cosmetics; D004364:Pharmaceutical Preparations; D062065:Wastewater; D014874:Water Pollutants, Chemical
Groundwater; PPCPs; Septic systems