PMID- 30953894
OWN - NLM
STAT- MEDLINE
DCOM- 20190625
LR  - 20190625
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 226
DP  - 2019 Jul
TI  - Thermochemical formation of multiple unintentional persistent organic pollutants 
      on metallurgical fly ash and their correlations.
PG  - 492-501
LID - S0045-6535(19)30612-5 [pii]
LID - 10.1016/j.chemosphere.2019.03.166 [doi]
AB  - Metallurgical processes are currently the predominant anthropogenic sources of 
      multiple unintentional persistent organic pollutants (POPs), including polycyclic 
      aromatic hydrocarbons (PAHs), chlorinated and brominated PAHs (Cl-PAHs and 
      Br-PAHs), polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), 
      and polybrominated diphenyl ether (PBDEs). Understanding the formation of 
      multiple POPs is important for source control. These POPs could be formed through 
      fly ash-mediated heterogeneous reactions. In this study, we comprehensively 
      investigated the thermochemical (150-450  degrees C) formation of these POPs on fly ash 
      samples collected from a secondary aluminum smelter, secondary lead smelter, and 
      iron ore sintering plant. The maximum concentrations of PCNs and PCBs were 154.5 
      and 181.3 times those in the original fly ash, respectively. Formation variations 
      of PAHs, Cl-PAHs and Br-PAHs, and PBDEs were different from that of PCBs and 
      PCNs. The PAHs concentration, which was the highest among the POPs in the 
      original fly ash, decreased sharply by 95% at 150  degrees C. The  summation operator(19)Cl-PAHs and 
       summation operator(19)Br-PAHs increased marginally at 250  degrees C before decreasing slightly at 350  degrees C. 
      The PBDE concentrations decreased under 250  degrees C and increased at 350  degrees C. PCNs, 
      PCBs, and PCDD/Fs showed good correlations, all of which had a negative 
      relationship with the PAHs. There were no significant correlations between PAHs 
      and Cl/Br-PAHs. Low brominated congeners could be formed by destruction of higher 
      brominated congeners because of thermal instability of the PBDEs.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Wu, Xiaolin
AU  - Wu X
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 
      100049, China.
FAU - Wu, Guanglong
AU  - Wu G
AD  - Foreign Economic Cooperation Office, Ministry of Environmental Protection of 
      China, Beijing, 100035, China.
FAU - Xie, Jiahong
AU  - Xie J
AD  - Foreign Economic Cooperation Office, Ministry of Environmental Protection of 
      China, Beijing, 100035, China.
FAU - Wang, Qingjie
AU  - Wang Q
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China.
FAU - Liu, Guorui
AU  - Liu G
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 
      100049, China.
FAU - Liu, Wenbin
AU  - Liu W
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 
      100049, China.
FAU - Yang, Lili
AU  - Yang L
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 
      100049, China.
FAU - Zheng, Minghui
AU  - Zheng M
AD  - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research 
      Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 
      2871, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 
      100049, China. Electronic address: zhengmh@rcees.ac.cn.
LA  - eng
PT  - Journal Article
DEP - 20190329
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Environmental Pollutants)
RN  - 0 (Halogenated Diphenyl Ethers)
RN  - 0 (Naphthalenes)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - *Environmental Monitoring
MH  - Environmental Pollutants/*analysis
MH  - Halogenated Diphenyl Ethers/*analysis
MH  - Halogenation
MH  - Metallurgy
MH  - Naphthalenes/*analysis
MH  - Polychlorinated Biphenyls/*analysis
MH  - Polycyclic Aromatic Hydrocarbons/*analysis
OTO - NOTNLM
OT  - Fly ash
OT  - Persistent organic pollutant
OT  - Secondary aluminum smelting
OT  - Secondary lead smelting
OT  - Sintering
EDAT- 2019/04/07 06:00
MHDA- 2019/06/27 06:00
CRDT- 2019/04/07 06:00
PHST- 2018/12/05 00:00 [received]
PHST- 2019/03/16 00:00 [revised]
PHST- 2019/03/24 00:00 [accepted]
PHST- 2019/04/07 06:00 [pubmed]
PHST- 2019/06/27 06:00 [medline]
PHST- 2019/04/07 06:00 [entrez]
AID - S0045-6535(19)30612-5 [pii]
AID - 10.1016/j.chemosphere.2019.03.166 [doi]
PST - ppublish
SO  - Chemosphere. 2019 Jul;226:492-501. doi: 10.1016/j.chemosphere.2019.03.166. Epub 
      2019 Mar 29.