دورية أكاديمية
Enhanced Extraction of AFFF-Associated PFASs from Source Zone Soils.
| العنوان: | Enhanced Extraction of AFFF-Associated PFASs from Source Zone Soils. |
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| المؤلفون: | Nickerson A; Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States., Maizel AC; Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States., Kulkarni PR; GSI Environmental Inc., 2211 Norfolk Suite 1000, Houston, Texas 77098, United States., Adamson DT; GSI Environmental Inc., 2211 Norfolk Suite 1000, Houston, Texas 77098, United States., Kornuc JJ; NAVFAC EXWC, 1100 23rd Avenue, Port Hueneme, California 93041, United States., Higgins CP; Department of Civil and Environmental Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States. |
| المصدر: | Environmental science & technology [Environ Sci Technol] 2020 Apr 21; Vol. 54 (8), pp. 4952-4962. Date of Electronic Publication: 2020 Apr 03. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 0213155 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5851 (Electronic) Linking ISSN: 0013936X NLM ISO Abbreviation: Environ Sci Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Washington DC : American Chemical Society Original Publication: Easton, Pa. : American Chemical Society, c1967- |
| مواضيع طبية MeSH: | Groundwater*, Fluorocarbons/*analysis , Water Pollutants, Chemical/*analysis, Soil ; Water |
| مستخلص: | Poly- and perfluoroalkyl substances (PFASs) derived from aqueous film-forming foam (AFFF) are increasingly recognized as groundwater contaminants, though the composition and distribution of AFFF-derived PFASs associated with soils and subsurface sediments remain largely unknown. This is particularly true for zwitterionic and cationic PFASs, which may be incompletely extracted from subsurface solids by analytical methods developed for anionic PFASs. Therefore, a method involving sequential basic and acidic methanol extractions was developed and evaluated for recovery of anionic, cationic, and zwitterionic PFASs from field-collected, AFFF-impacted soils. The method was validated by spike-recovery experiments with equilibrated soil-water-AFFF and analytical standards. To determine the relative importance of PFASs lacking commercially available analytical standards, their concentrations were estimated by a novel semiquantitation approach. Total PFAS concentrations determined by semiquantitation were compared with concentrations determined by the total oxidizable precursor assay. Finally, the described method was applied to two soil cores from former fire-training areas in which cations and zwitterions were found to contribute up to 97% of the total PFAS mass. This result demonstrates the need for extraction and analysis methods, such as the ones presented here, that are capable of quantifying cationic and zwitterionic PFASs in AFFF-impacted source zone soils. |
| المشرفين على المادة: | 0 (Fluorocarbons) 0 (Soil) 0 (Water Pollutants, Chemical) 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20200324 Date Completed: 20200715 Latest Revision: 20200715 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1021/acs.est.0c00792 |
| PMID: | 32200626 |
| قاعدة البيانات: | MEDLINE |
Find this issue from the American Chemical Society | تدمد: | 1520-5851 |
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| DOI: | 10.1021/acs.est.0c00792 |