Abstract:
:Disinfection byproducts (DBPs) are generated by disinfectants reacting with organic matters. Previous studies have focused on DBPs in drinking water, but they have not paid sufficient attention to DBPs in sewage treatment plants (STPs), where the sources and compositions of DBPs are much more complicated, and there is a likelihood of more toxic DBPs being formed. In this study, the occurrence of DBPs in six STPs in Hong Kong and the potential impact of the effluents from the STPs on the marine environment were investigated. In STPs, the mean concentrations of the total DBPs ranged from 1160 to 17,019 ng/L, 1562 to 20,795 ng/L, and 289 to 1037 ng/L in the influent, effluent, and seawater, respectively. Trihalomethanes, haloacetonitriles, and trihalophenols were the most commonly detected DBPs, whereas hexachloro-1,3-butadiene and halocarbazoles were not detected in the STPs and in the marine environment in Hong Kong. Secondary treatment efficiently removed DBPs and DBP precursors. Regarding disinfection techniques, UV irradiation showed little effect on the concentrations of DBPs, whereas sodium hypochlorite significantly elevated the levels of both traditional and emerging DBPs. The effluents from two selected STPs that use chlorination have an obvious impact on the marine environment. This work presents the potential sources of DBPs in sewage, the influence of the treatment processes and disinfection techniques employed in STPs on the removal/formation of DBPs, and the impact of the effluents from the STPs on the marine environment. This work also highlights the need for investigating the emerging DBPs generated in STPs and their related environmental concerns.
journal_name
Ecotoxicol Environ Safjournal_title
Ecotoxicology and environmental safetyauthors
Feng H,Ruan Y,Wu R,Zhang H,Lam PKSdoi
10.1016/j.ecoenv.2019.06.034subject
Has Abstractpub_date
2019-10-15 00:00:00pages
404-411eissn
0147-6513issn
1090-2414pii
S0147-6513(19)30672-4journal_volume
181pub_type
杂志文章abstract::Brominated flame retardants (BFRs) and Dechlorane Plus (DP) were measured in both human hair and paired serum samples from a cohort of university students in South China. Segmental analysis was conducted to explore gender difference and the relationships between the hair and serum. The concentrations of total PBDEs in...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2017.09.047
更新日期:2018-01-01 00:00:00
abstract::The effects of trichloroethylene (TCE) and acrylonitrile (ACN) on growth, RNA synthesis, ribosome synthesis, and ribosome content were tested in yeast cells. TCE causes a delay of the growth of a cell culture (prolongation of the lag phase), but does not cause inhibition. Cells exposed to increasing concentrations of ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(84)90058-7
更新日期:1984-04-01 00:00:00
abstract::Recent studies have documented that microcystins (MCs) have potential toxic effects on growth and reproduction in fish. However, no systematic data exist on whether MCs cause gonadal development retardation through disrupting the growth hormone/insulin-like growth factors (GH/IGFs) system. To this end, zebrafish hatch...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2017.01.025
更新日期:2017-05-01 00:00:00
abstract::The effects of decabromodiphenyl ether (BDE-209) on avoidance response, survival, growth, and reproduction of earthworms (Eisenia fetida) were investigated under laboratory conditions using natural and artificial soils as substrate. Results showed that no significant avoidance response was observed when earthworms wer...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2012.12.009
更新日期:2013-04-01 00:00:00
abstract::Preimplantation rat embryos (8-cell, morulae, blastocysts) were incubated for 24 hr in vitro in a Brinster medium with or without cadmium chloride (1 microgram/ml). CdCl2 arrested the development of both the 8-cell and morulae into blastocysts. Morphologic observations revealed the 8-cell embryo to have shrunken cells...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(86)90013-8
更新日期:1986-12-01 00:00:00
abstract::The impact of nanoplastics using model polystyrene nanoparticles (PS NPs), anionic (PS-COOH) and cationic (PS-NH2), has been investigated on the marine rotifer Brachionus plicatilis, a major component of marine zooplanktonic species. The role of different surface charges in affecting PS NP behaviour and toxicity has b...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2017.07.068
更新日期:2017-11-01 00:00:00
abstract::Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) have been reported to cause adverse health effects on wildlife as well as humans. Numerous studies demonstrated that PFOA and PFOS could interfere with the transcriptional activation of estrogen receptor α (ERα) by mimicking the function of endogenous ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.01.027
更新日期:2019-04-30 00:00:00
abstract::Since development of antioxidant defence system is high energy demanding event, innate defence system and stress tolerance of plant is strictly governed by plant age. This study is aimed towards evaluating variation of tolerance in germinating seeds and seedlings of Oryza sativa L. cv. Swarna against nano-scale zero v...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.111104
更新日期:2020-11-01 00:00:00
abstract::Field experiments was conducted to evaluate the effectiveness of sepiolite (S), sepiolite + fungi residues (SFR) and sepiolite + vermicompost (SVC) on in situ immobilization remediation of Cd contaminated soils. The results showed that treatments of S, SFR and SVC decreased soil Cd availability by 15.2-47.8%, 17.5-44....
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.111600
更新日期:2021-01-15 00:00:00
abstract::Cadmium (Cd) is a dangerous transition element that causes environmental and health problems due to its high mobility in the soil-plant system. In plants, Cd causes serious alterations in physiological processes, affecting different vital functions such as photosynthesis. Species such as Brassica juncea and Brassica r...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.04.081
更新日期:2019-09-30 00:00:00
abstract::Soil contaminated with cadmium presents a potential hazard for humans, animals and plants. The latter play a major role in the transfer of cadmium to the food chain. The uptake of cadmium and its accumulation by plants is dependent on various soil, plants and environmental factors. In order to identify soil properties...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2013.06.011
更新日期:2013-10-01 00:00:00
abstract::Sexually mature male Chlamys farreri were exposed to benzo[a]pyrene for 10 days at four concentrations at 0, 0.025, 0.5 and 10 μg/L. Fluctuations in sex steroids during the exposure period were observed, which indicated that sex steroids have a role in gamete development. Exposure to B[a]P altered levels of 17β-estrad...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2015.01.019
更新日期:2015-04-01 00:00:00
abstract::In this work, acute toxicities of heavy metals (Cu, Zn and Cd) were evaluated singly or in mixtures on Chinese rare minnow (Gobiocypris rarus) in its early stages of development (embryos, larvae). Normal embryos not later than 3 h post-fertilization and newly hatched larvae were selected for the tests. The embryos wer...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2011.07.033
更新日期:2011-11-01 00:00:00
abstract::Experiments were conducted to measure acute lethal response of aquatic insects to hexazinone (Velpar L) and triclopyr ester (Garlon 4) in flow-through laboratory bioassays, and to determine lethal and behavioral effects of these herbicides on insects in outdoor stream channels. No significant mortality (chi 2 P greate...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(92)90085-h
更新日期:1992-06-01 00:00:00
abstract::Coal excavation and refinement processes generate substantial volumes of contaminated effluent that may be detrimental to aquatic ecosystems. As such, understanding the impacts of coal mine water releases on aquatic animals and ecosystems is essential for effectively managing and protecting neighboring environments. S...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2016.03.003
更新日期:2016-07-01 00:00:00
abstract::Triclosan (TCS) is an antimicrobial and is an aquatic contaminant. Little is known on aquatic toxicity of TCS. Rotifers are common members of freshwater zooplankton. In this study, Brachionus calyciflorus was chosen as a test organism to assess the acute and complete life cycle toxicity of TCS in this study. The acute...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2015.12.043
更新日期:2016-05-01 00:00:00
abstract::Effects of effluents from mechanical pulp production on brown trout were studied for 8 weeks at environmentally relevant concentrations. The exposure took place in laboratory-based pools upstream and downstream of the effluent discharge point of an integrated newsprint mill using ground wood/thermomechanical pulp. The...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1006/eesa.1998.1683
更新日期:1998-07-01 00:00:00
abstract::Methyl-triclosan (MTCS) is a dominant transformation product of triclosan (TCS), which has been widely used as an effective antimicrobial ingredient with increasing concentrations in the environment. MTCS shows higher persistence in environment than its parent chemical TCS. The toxic effects of MTCS and toxicological ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2019.109391
更新日期:2019-10-30 00:00:00
abstract::A novel phenol-degrading strain was isolated and identified as Rhodococcus ruber C1. The degradation analysis shows that 1806 mg/L of phenol can be completely degraded by strain C1 within 38 h, and the maximum specific growth rate (μmax=1.527 h-1) and maximum specific phenol degradation rate (qmax=3.674 h-1) indicate ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.111709
更新日期:2021-01-15 00:00:00
abstract::A dose-dependent immunomodulatory effect of Nitrogranulogen (NGG) was observed in vitro on antibody-secreting cells and lymphocyte proliferation in rainbow trout. Because different doses of lindane (10, 50 and 100 mg/kg, injected intraperitoneally) had a depressing effect on the same immune functions, the authors rest...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1006/eesa.1994.1025
更新日期:1994-04-01 00:00:00
abstract::Although copper is among the indispensable trace elements in animal physiological processes, it exerts toxicity upon over-exposure. The present study aimed to investigate hepatocyte autophagy induced by CuSO4 and its potential mechanism. A total of 240 ICR mice (four-week-old, 120 males and 120 females) were randomly ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2020.111656
更新日期:2021-01-15 00:00:00
abstract::Estuarine sediment contamination is a growing significant ecological issue in New Zealand. Methods of assessing toxicity and ecological impacts in a cost effective way are currently limited. Further to that is a need to develop bioassays that generate data quickly and cost effectively and have ecological relevance to ...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2007.12.008
更新日期:2008-07-01 00:00:00
abstract::Tourists visiting to endemic zones may acquire Enterotoxigenic Escherichia coli (ETEC) infection resulting into diarrhea due to consumption of contaminated potable waters. In this study, a qPCR assay (SYBR Green), targeting LT1 and ST1 genes was designed to quantify ETEC in potable waters derived from civic water supp...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2011.07.022
更新日期:2011-11-01 00:00:00
abstract::Biotechnology is considered as a promising technology for the removal of polycyclic aromatic hydrocarbons from the environment. Free bacteria are often sensitive to some biotic and abiotic factors in the environment to the extent that their ability to effect biodegradation of organic pollutants, such as polycyclic aro...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2016.11.019
更新日期:2017-04-01 00:00:00
abstract::A residue analytical method for the determination of bromoxynil in soil and maize was developed using high performance liquid chromatography with diode-array detector (HPLC-DAD) and high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS). The residual level and dissipation rate of bromoxynil in th...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2011.05.015
更新日期:2011-09-01 00:00:00
abstract::Actions and interactions of two abiotic parameters--temperature (18, 21, and 24 degrees C) and photoperiod (8, 12, and 16 hr/day)--on mercury bioaccumulation (HgCl2 and CH3HgCl) by a rooted macrophyte species, Elodea densa, from the sediment source were studied using experimental designs. Comparative analysis of shoot...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/0147-6513(90)90053-8
更新日期:1990-10-01 00:00:00
abstract::Concentration-dependent inhibition of the photosynthetic electron transport chain (photosystem I (PS I), photosystem II (PS II) and whole chain reaction) and ATP content was observed in Nostoc muscorum and Chlorella vulgaris grown with o-nitrophenol, m-nitrophenol, or 2,4-dinitrophenol. Although the extents of inhibit...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2003.11.002
更新日期:2004-06-01 00:00:00
abstract::Arsenic is an environmental contaminant, while acetaminophen is an extensively used nonsteroidal analgesic-antipyretic drug. We evaluated whether subacute co-exposure to arsenic and acetaminophen would produce more toxicity than that caused by exposure to either of the xenobiotics in rats. Toxicity was evaluated throu...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2009.09.005
更新日期:2010-01-01 00:00:00
abstract::Interactions between microorganisms and minerals have the potential contribution to remove polycyclic aromatic hydrocarbons (PAHs) in model systems. In this study, phenanthrene (PHE) was used as a probe molecule to explore the potential adsorption and biotransformation processes in the presence of microorganisms and v...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.05.091
更新日期:2018-10-01 00:00:00
abstract::The Medaka Extended One Generation Reproduction Test (MEOGRT) is a Tier 2 test within U.S. Environmental Protection Agency's (USEPA) Endocrine Disruptor Screening Program (EDSP), designed to characterize the potential adverse effects to fish of exposure to chemical that can cause disruption of the endocrine system. Th...
journal_title:Ecotoxicology and environmental safety
pub_type: 杂志文章
doi:10.1016/j.ecoenv.2018.06.088
更新日期:2018-10-30 00:00:00