Dissolved organic matter and estrogenic potential of landfill leachate.
The estrogenic potentials of leachate samples collected at Laogang Sanitary Landfill in Shanghai, China were measured together with the associated dissolved organic matter (DOM) in leachate samples. Over 99% of the DOM in fresh leachate was removed upon 3-7 years of landfill, leaving only DOM with strong fluorescent activity. Anoxic or aerobic treatment of landfill leachate can further degrade DOM of MW<300 Da and transform those with fluorescent activity of MW>10(5) Da to those of 2000-10(5) Da. Neither landfilling nor storage in anoxic pond effectively removed estrogenic potential of leachate. Fractionation test revealed that residual organic matters of MW 3000-14000 Da and of <600 Da with high UV254 contributed most of the estrogenic activities in leachate. Aerobic SBR treatment considerably reduced the estrogenic potential of these organic matters in leachate.
Lü
Fan
F
State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China.
Zhang
Hua
H
Chang
Cheng-Hsuan
CH
Lee
Duu-Jong
DJ
He
Pin-Jing
PJ
Shao
Li-Ming
LM
Su
Ay
A
D001667:Binding, Competitive / Q000187:drug effects; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002850:Chromatography, Gel; D052244:Endocrine Disruptors / Q000633:toxicity*; D047628:Estrogen Receptor alpha / Q000187:drug effects; D004968:Estrogens, Non-Steroidal / Q000633:toxicity*; D011138:Polytetrafluoroethylene / Q000737:chemistry / Q000633:toxicity; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D052244:Endocrine Disruptors; D047628:Estrogen Receptor alpha; D004968:Estrogens, Non-Steroidal; D014874:Water Pollutants, Chemical; D011138:Polytetrafluoroethylene