TY - JOUR
T1 - Perfluoroalkylsulfonic and carboxylic acids in earthworms (Eisenia fetida)
T2 - Accumulation and effects results from spiked soils at PFAS concentrations bracketing environmental relevance
AU - Karnjanapiboonwong, Adcharee
AU - Deb, Sanjit K.
AU - Subbiah, Seenivasan
AU - Wang, Degeng
AU - Anderson, Todd A.
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/5
Y1 - 2018/5
N2 - Effects of perfluorobutanesulfonic acid (PFBS), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and perfluoroheptanoic acid (PFHpA) on earthworms (Eisenia fetida) in soils contaminated with these compounds at 0.1, 1, 10, 1,000, and 100,000 μg kg−1 dry weight, covering concentration levels found in background, biosolid–amended, and facility–surrounding soils, were investigated. Earthworms were exposed to spiked soil for 21 days. Concentrations of these compounds in earthworms after 21-d exposure ranged from below detection to 127 mg kg−1 wet weight with the rank order of PFNA > PFHxS > PFHpA > PFBS; no mortality of earthworms was observed in all treatments including controls, except PFBS at 1,000 μg kg−1 and all PFASs at 100,000 μg kg−1. The highest weight loss (29%) was observed for earthworms exposed to PFNA at 100,000 μg kg−1, which was significantly different from all other treatments except PFHpA at 100,000 μg kg−1. These results are expected to fill some data gaps in toxicity of PFASs in terrestrial environments and provide helpful information on the potential for trophic transport of PFASs from soil to higher organisms.
AB - Effects of perfluorobutanesulfonic acid (PFBS), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and perfluoroheptanoic acid (PFHpA) on earthworms (Eisenia fetida) in soils contaminated with these compounds at 0.1, 1, 10, 1,000, and 100,000 μg kg−1 dry weight, covering concentration levels found in background, biosolid–amended, and facility–surrounding soils, were investigated. Earthworms were exposed to spiked soil for 21 days. Concentrations of these compounds in earthworms after 21-d exposure ranged from below detection to 127 mg kg−1 wet weight with the rank order of PFNA > PFHxS > PFHpA > PFBS; no mortality of earthworms was observed in all treatments including controls, except PFBS at 1,000 μg kg−1 and all PFASs at 100,000 μg kg−1. The highest weight loss (29%) was observed for earthworms exposed to PFNA at 100,000 μg kg−1, which was significantly different from all other treatments except PFHpA at 100,000 μg kg−1. These results are expected to fill some data gaps in toxicity of PFASs in terrestrial environments and provide helpful information on the potential for trophic transport of PFASs from soil to higher organisms.
KW - Accumulation
KW - PFBS
KW - PFHpA
KW - PFHxS
KW - PFNA
KW - Toxicity
UR - http://www.scopus.com/inward/record.url?scp=85041736663&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2018.02.027
DO - 10.1016/j.chemosphere.2018.02.027
M3 - Article
C2 - 29438943
AN - SCOPUS:85041736663
VL - 199
SP - 168
EP - 173
JO - Chemosphere
JF - Chemosphere
SN - 0045-6535
ER -