PMID- 12489726
OWN - NLM
STAT- MEDLINE
DCOM- 20030311
LR  - 20190906
IS  - 0045-6535 (Print)
IS  - 0045-6535 (Linking)
VI  - 49
IP  - 10
DP  - 2002 Dec
TI  - Occurrence and microbial degradation of phthalate esters in Taiwan river 
      sediments.
PG  - 1295-9
AB  - Concentrations and microbial degradation rates were measured for eight phthalate 
      esters (PAEs) found in 14 surface water and six sediment samples taken from 
      rivers in Taiwan. The tested PAEs were diethyl phthalate (DEP), dipropyl 
      phthalate (DPP), di-n-butyl phthalate (DBP), diphenyl phthalate (DPhP), 
      benzylbutyl phthalate (BBP), dihexyl phthalate (DHP), dicyclohexyl phthalate 
      (DCP), and di-(2-ethylhexyl) phthalate (DEHP). In all samples, concentrations of 
      DEHP and DBP were found to be higher than the other six PAEs. DEHP concentrations 
      in the water and sediment samples ranged from ND to 18.5 microg/l and 0.5 to 23.9 
      microg/g, respectively; for DBP the concentration ranges were 1.0-13.5 microg/l 
      and 0.3-30.3 microg/g, respectively. Concentrations of DHP, BBP, DCP and DPhP 
      were below detection limits. Under aerobic conditions, average degradation 
      half-lives for DEP, DPP, DBP, DPhP, BBP, DHP, DCP and DEHP were measured as 2.5, 
      2.8, 2.9, 2.6, 3.1, 9.7, 11.1 and 14.8 days, respectively; under anaerobic 
      conditions, respective average half-lives were measured as 33.6, 25.7, 14.4, 
      14.6, 19.3, 24.1, 26.4 and 34.7 days. In other words, under aerobic conditions we 
      found that DEP, DPP, DBP, DPhP and BBP were easily degraded, but DEHP was 
      difficult to degrade; under anaerobic conditions, DBP, DPhP and BBP were easily 
      degraded, but DEP and DEHP were difficult to degrade. Aerobic degradation rates 
      were up to 10 times faster than anaerobic degradation rates.
FAU - Yuan, S Y
AU  - Yuan SY
AD  - National Institute of Environmental Analysis, Environmental Protection 
      Administration, Chungli, Taiwan, ROC.
FAU - Liu, C
AU  - Liu C
FAU - Liao, C S
AU  - Liao CS
FAU - Chang, B V
AU  - Chang BV
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Esters)
RN  - 0 (Phthalic Acids)
RN  - 0 (Water Pollutants, Chemical)
RN  - 6O7F7IX66E (phthalic acid)
SB  - IM
MH  - Bacteria, Anaerobic/physiology
MH  - Biodegradation, Environmental
MH  - Environmental Monitoring
MH  - Esters/analysis/metabolism
MH  - Half-Life
MH  - Phthalic Acids/analysis/*metabolism
MH  - Taiwan
MH  - Water Pollutants, Chemical/analysis/*metabolism
EDAT- 2002/12/20 04:00
MHDA- 2003/03/12 04:00
CRDT- 2002/12/20 04:00
PHST- 2002/12/20 04:00 [pubmed]
PHST- 2003/03/12 04:00 [medline]
PHST- 2002/12/20 04:00 [entrez]
AID - S0045-6535(02)00495-2 [pii]
AID - 10.1016/s0045-6535(02)00495-2 [doi]
PST - ppublish
SO  - Chemosphere. 2002 Dec;49(10):1295-9. doi: 10.1016/s0045-6535(02)00495-2.