@article{li_zhi_weed_broome_knappe_duckworth_2024, title={Commercial compost amendments inhibit the bioavailability and plant uptake of per- and polyfluoroalkyl substances in soil-porewater-lettuce systems}, volume={186}, ISSN={["1873-6750"]}, DOI={10.1016/j.envint.2024.108615}, abstractNote={Compost is widely used in agriculture as fertilizer while providing a practical option for solid municipal waste disposal. However, compost may also contain per- and polyfluoroalkyl substances (PFAS), potentially impacting soils and leading to PFAS entry into food chains and ultimately human exposure risks via dietary intake. This study examined how compost affects the bioavailability and uptake of eight PFAS (two ethers, three fluorotelomer sulfonates, and three perfluorosulfonates) by lettuce (Lactuca sativa) grown in commercial organic compost-amended, PFAS spiked soils. After 50 days of greenhouse experiment, PFAS uptake by lettuce decreased (by up to 90.5 %) with the increasing compost amendment ratios (0-20 %, w/w), consistent with their decreased porewater concentrations (by 30.7-86.3 %) in compost-amended soils. Decreased bioavailability of PFAS was evidenced by the increased in-situ soil-porewater distribution coefficients (Kd) (by factors of 1.5-7.0) with increasing compost additions. Significant negative (or positive) correlations (R2 ≥ 0.55) were observed between plant bioaccumulation (or Kd) and soil organic carbon content, suggesting that compost amendment inhibited plant uptake of PFAS mainly by increasing soil organic carbon and enhancing PFAS sorption. However, short-chain PFAS alternatives (e.g., perfluoro-2-methoxyacetic acid (PFMOAA)) were effectively translocated to shoots with translocation factors > 2.9, increasing their risks of contamination in leafy vegetables. Our findings underscore the necessity for comprehensive risk assessment of compost-borne PFAS when using commercial compost products in agricultural lands.}, journal={ENVIRONMENT INTERNATIONAL}, author={Li, Yuanbo and Zhi, Yue and Weed, Rebecca and Broome, Stephen W. and Knappe, Detlef R. U. and Duckworth, Owen W.}, year={2024}, month={Apr} }
 @article{kotlarz_mccord_wiecha_weed_cuffney_enders_strynar_knappe_reich_hoppin_2024, title={Measurement of Hydro-EVE and 6:2 FTS in Blood from Wilmington, North Carolina, Residents, 2017-2018}, volume={132}, ISSN={["1552-9924"]}, url={https://doi.org/10.1289/EHP14503}, DOI={10.1289/EHP14503}, number={2}, journal={ENVIRONMENTAL HEALTH PERSPECTIVES}, author={Kotlarz, Nadine and McCord, James and Wiecha, Nate and Weed, Rebecca A. and Cuffney, Michael and Enders, Jeffrey R. and Strynar, Mark and Knappe, Detlef R. U. and Reich, Brian J. and Hoppin, Jane A.}, year={2024}, month={Feb} }
 @article{kotlarz_mccord_wiecha_weed_cuffney_enders_strynar_knappe_reich_hoppin_2024, title={Reanalysis of PFO5DoA Levels in Blood from Wilmington, North Carolina, Residents, 2017-2018}, volume={132}, ISSN={["1552-9924"]}, url={https://doi.org/10.1289/EHP13339}, DOI={10.1289/EHP13339}, abstractNote={,}, number={2}, journal={ENVIRONMENTAL HEALTH PERSPECTIVES}, author={Kotlarz, Nadine and McCord, James and Wiecha, Nate and Weed, Rebecca A. and Cuffney, Michael and Enders, Jeffrey R. and Strynar, Mark and Knappe, Detlef R. U. and Reich, Brian J. and Hoppin, Jane A.}, year={2024}, month={Feb} }
 @article{enders_weed_griffith_muddiman_2022, title={Development and validation of a high resolving power absolute quantitative per- and polyfluoroalkyl substances method incorporating Skyline data processing}, volume={36}, ISSN={["1097-0231"]}, url={https://doi.org/10.1002/rcm.9295}, DOI={10.1002/rcm.9295}, abstractNote={RationaleThe ability to perform absolute quantitation and non‐targeted analysis on a single mass spectrometry instrument would be advantageous to many researchers studying per‐ and polyfluoroalkyl substances (PFAS). High‐resolution accurate mass (HRAM) instrumentation (typically deployed for non‐targeted work) carries several advantages over traditional triple quadrupole workflows when performing absolute quantitation. Processing this data using a vendor‐neutral software would promote collaboration for these environmental studies.}, number={11}, journal={RAPID COMMUNICATIONS IN MASS SPECTROMETRY}, author={Enders, Jeffrey R. and Weed, Rebecca A. and Griffith, Emily H. and Muddiman, David C.}, year={2022}, month={Jun} }
 @article{weed_boatman_enders_2022, title={Recovery of per- and polyfluoroalkyl substances after solvent evaporation}, volume={10}, ISSN={["2050-7895"]}, url={https://doi.org/10.1039/D2EM00269H}, DOI={10.1039/d2em00269h}, abstractNote={Presented data shows that vacuum evaporative concentration of PFAS standards can cause class-specific loss of material that can be mitigated via recovery steps.}, journal={ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS}, author={Weed, Rebecca A. and Boatman, Anna K. and Enders, Jeffrey R.}, year={2022}, month={Oct} }