PMID- 33918359
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210502
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 7
DP  - 2021 Apr 2
TI  - LDPE and HDPE Microplastics Differently Affect the Transport of Tetracycline in 
      Saturated Porous Media.
LID - 10.3390/ma14071757 [doi]
LID - 1757
AB  - The accumulation of microplastics (MPs) in soil and sediments may influence the 
      penetration of contaminants into subsurface environments. However, little 
      attention has been paid to comparing the different roles of two common 
      polyethylene (PE) types-low-density polyethylene (LDPE) and high-density 
      polyethylene (HDPE). In this study, the transport behaviors of tetracycline in 
      saturated quartz sand columns in the presence and absence of these two MPs were 
      investigated, respectively. The results showed that both types of PE MPs 
      restrained the mobility of tetracycline at neutral conditions, while such 
      detrimental effects were weak at acid and alkaline conditions. The degree of 
      nonequilibrium adsorption was higher, and tetracycline transferred easier to the 
      kinetic site for the existence of LDPE than of HDPE. The increased roughness and 
      Brunauer-Emmett-Teller (BET) surface areas, more negative zeta potentials and the 
      formation of oxygen function groups on the surface of MPs after UV-weathering 
      intensified the retardation of tetracycline transport. This study revealed that 
      the PE type and weathering should be taken into account in risk assessment, along 
      with the solution chemistry.
FAU - Hu, Enzhu
AU  - Hu E
AUID- ORCID: 0000-0002-1514-6577
AD  - Institute of Resources and Environmental Sciences, School of Metallurgy, 
      Northeastern University, Shenyang 110819, China.
FAU - Yuan, Hongbo
AU  - Yuan H
AD  - Institute of Resources and Environmental Sciences, School of Metallurgy, 
      Northeastern University, Shenyang 110819, China.
FAU - Du, Yichun
AU  - Du Y
AD  - Shaanxi Key Laboratory of Land Consolidation, Shaanxi Provincial Land Engineering 
      Construction Group Co., Ltd., Chang'an University, Xi'an 710054, China.
FAU - Chen, Xijuan
AU  - Chen X
AUID- ORCID: 0000-0001-5856-6849
AD  - Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of 
      Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
LA  - eng
GR  - 2018YFC1801200/National Key Research and Development Program of China/
GR  - 2019-ZD02/Fund Project of Shaanxi Key Laboratory of Land Consolidation, China/
GR  - N2025008/Fundamental Research Funds for the Central Universities/
PT  - Journal Article
DEP - 20210402
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC8038232
OTO - NOTNLM
OT  - UV-weathering
OT  - microplastics
OT  - polyethylene
OT  - tetracycline
OT  - transport
COIS- The authors declare no conflict of interest.
EDAT- 2021/05/01 06:00
MHDA- 2021/05/01 06:01
PMCR- 2021/04/02
CRDT- 2021/04/30 01:09
PHST- 2021/03/07 00:00 [received]
PHST- 2021/03/25 00:00 [revised]
PHST- 2021/03/30 00:00 [accepted]
PHST- 2021/04/30 01:09 [entrez]
PHST- 2021/05/01 06:00 [pubmed]
PHST- 2021/05/01 06:01 [medline]
PHST- 2021/04/02 00:00 [pmc-release]
AID - ma14071757 [pii]
AID - materials-14-01757 [pii]
AID - 10.3390/ma14071757 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Apr 2;14(7):1757. doi: 10.3390/ma14071757.