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Bulletin of Environmental Contamination and Toxicology

Yanjie Wang, Fayun Li, Xiangmin Rong, Haixing Song, Jiabo Chen
The aim of this study was to determine the remediation efficiency of petroleum-contaminated soil from an oilfield using different types of remediation treatments under laboratory conditions. Compared with unamended soil as the control treatment (T1), soil samples were amended with bulrush straw powder (T2), with biochar alone (T3) and in combination with nutrients (nitrogen and phosphorus) (T4). The remediation experiment was carried out for 8 weeks. The extent of hydrocarbon degradation was monitored gravimetrically, and the residual oil fractions were analyzed by gas chromatography...
March 21, 2017: Bulletin of Environmental Contamination and Toxicology
Esra Bağda, Huseyin Altundağ, Mustafa Tüzen, Mustafa Soylak
In the present study, a simple, mono step deep eutectic solvent (DES) extraction was developed for selective extraction of copper from sediment samples. The optimization of all experimental parameters, e.g. DES type, sample/DES ratio, contact time and temperature were performed with using BCR-280 R (lake sediment certified reference material). The limit of detection (LOD) and the limit of quantification (LOQ) were found as 1.2 and 3.97 µg L(-1), respectively. The RSD of the procedure was 7.5%. The proposed extraction method was applied to river and lake sediments sampled from Serpincik, Çeltek, Kızılırmak (Fadl and Tecer region of the river), Sivas-Turkey...
March 20, 2017: Bulletin of Environmental Contamination and Toxicology
S K Sharma, Saraswati, T K Mandal, Mohit Saxena
In this study, ambient NH3, NO, NO2, CO and SO2 were measured continuously from February, 2008, to December, 2016. The annual average mixing ratios (mole/mole) of NH3, NO, NO2, CO and SO2 were 17.8 ± 3.4 ppb; 21.2 ± 2.3 ppb, 18.1 ± 3.2 ppb; 1.7 ± 0.3 ppm and 2.0 ± 0.3 ppb, respectively. All the trace gases (NH3, NO, NO2, CO and SO2) showed significant annual variation during the study. A significant increasing trend in mixing ratios of ambient NH3 and NO2 were observed at the observational site of Delhi, whereas, increasing trend were recorded in case of NO, CO and NO2 mixing ratios...
March 20, 2017: Bulletin of Environmental Contamination and Toxicology
Su Mei Wu, Li-Hsin Shu, Jia-Hao Liu, Ching Hsein Chen
The aim of the present study was to identify whether the responses of oxidative stress in zebrafish liver are similar to those in mammalians upon low doses of Cd(2+) exposure in short durations. Fish were exposed to 1.78 μM Cd(2+) (treatment) and 0.0 μM Cd(2+) (control) for 0, 1, 3, and 6 h. The reactive oxygen species (ROS) and lipid peroxidation (LPO) of hepatic tissues significantly increased after 3 and 6 h of Cd(2+) exposure, respectively. Antioxidants glutathione peroxidase (gpx1a), superoxide dismutase (sod), and catalase (cat) were up regulated after 1-3 h, and metallothionein isoforms (smtB and mt2) increased after 3-6 h of Cd(2+) exposure...
March 18, 2017: Bulletin of Environmental Contamination and Toxicology
Jasmina Rinkovec, Gordana Pehnec, Silva Žužul, Sanda Rončević
This study examined a method for determination of rhodium (Rh), palladium (Pd) and platinum (Pt) in particulate matter using standard solutions, model samples and certified reference materials (NIST 1648a and ERM CZ120). The method was based on microwave digestion followed by inductively coupled plasma mass spectrometry (ICP-MS). The results showed that the stability of the standard solution mixture of Rh, Pd and Pt was better when chlorides were present in the solution. A membrane filter and one type of quartz filter were the most adequate for analyzing platinum group elements (PGE)...
March 17, 2017: Bulletin of Environmental Contamination and Toxicology
Shan Zheng, Tengfei Pan, Cuilan Ma, Dongliang Qiu
Differential gene expression profile was studied in Dimocarpus longan Lour. in response to treatments of simulated acid rain with pH 2.5, 3.5, and a control (pH 5.6) using differential display reverse transcription polymerase chain reaction (DDRT-PCR). Results showed that mRNA differential display conditions were optimized to find an expressed sequence tag (EST) related with acid rain stress. The potential encoding products had 80% similarity with a transcription initiation factor IIF of Gossypium raimondii and 81% similarity with a protein product of Theobroma cacao...
March 16, 2017: Bulletin of Environmental Contamination and Toxicology
Manju Bhargavi Gumpu, Noel Nesakumar, Srinidhi Nagarajan, Sadhana Ramanujam, Uma Maheswari Krishnan, K Jayanth Babu, John Bosco Balaguru Rayappan
Acetylcholinesterase (AChE) enzyme has been predominantly used for the detection of pesticides and metal ions. But, these sensors respond to pesticides as well as metal ions at certain concentration, which results in poor selectivity. Hence in this work, the amount of thiocholine produced during AChE inhibition has been estimated to detect the residual activity of AChE enzyme in-turn to enhance the efficiency of the biosensor. In this context, Pt/ZnO-CeO2/AChE/Chitosan based biosensor has been developed for sensitive voltammetric quantification of thiocholine in AChE...
March 16, 2017: Bulletin of Environmental Contamination and Toxicology
M L Ballesteros, A C Hued, M Gonzalez, K S B Miglioranza, M A Bistoni
The objective of this work was to evaluate the health status of an economic and ecologically important fish species from Mar Chiquita Lake, a RAMSAR site located in Cordoba, Argentina, relative to the levels of selected persistent organic pollutants (POPs) in lake water and fish tissues. Odontesthes bonariensis was used as a model species, and its health was estimated by means of histological indices in gills and liver. Sampling was performed according to rainy and dry seasons (i.e. dry, rainy and post-rainy)...
March 16, 2017: Bulletin of Environmental Contamination and Toxicology
Mathieu Nsenga Kumwimba, Bo Zhu
Plant species have an important role in eco-ditches; however, the Michaelis-Menten kinetic parameters of nutrient uptake, growth rate and purification efficiency of ditch plants and their influences on domestic sewage treatment efficiency are still unclear. Growth rates of all nine species, but especially Lemna gibba, Cladophora and Myriophyllum verticillatum were best in undiluted domestic sewage as opposed to a mixture of domestic sewage. Performance of species to accumulate nutrients was not only species-specific, but was also affected by both sewage treatments...
March 14, 2017: Bulletin of Environmental Contamination and Toxicology
Bita Mohanty, Pradipta R Muduli, Gregory Cooper, Saroja K Barik, Debasish Mahapatro, Alaya T Behera, Ajit K Pattnaik
The spatio-temporal distribution and the controlling factors of petroleum hydrocarbons (PHCs) in sediments of Chilika lagoon was investigated. Samples were collected during three seasons and quantified using UV-fluorescence spectroscopy. Concentrations of PHCs in surface sediments varies from 0.18 to 12.13 ppm (mean 3.71 ± 3.94 ppm). Compared to the lagoon, the monitoring stations adjacent to jetties with high boating activities tend to have higher PHC concentrations, suggesting that the contribution is likely to be from fossil fuel combustion and accidental seepage...
March 14, 2017: Bulletin of Environmental Contamination and Toxicology
Michelle Grace V Paraso, Justinne Kaye C Morales, Angelo A Clavecillas, Ma Suzanneth Epifania G Lola
This study was conducted to measure 17β-estradiol (E2) levels in Laguna de Bay, Philippines and to examine feral male common carp for evidence of exposure to estrogenic pollutants. Analysis of water samples revealed E2 concentrations of 630 and 550 ng/L from the east and west bay of the lake, respectively. Plasma vitellogenin (VTG) in captured fish ranged from 506 to 4083 ng/mL. In comparison to the reference and west bay groups, fish from the east bay had higher plasma VTG concentrations and reduced gonadosomatic index (GSI)...
March 13, 2017: Bulletin of Environmental Contamination and Toxicology
Frapiccini Emanuela, Scarcella Giuseppe, Guicciardi Stefano, Betti Mattia, Marini Mauro
Organochlorines and carbamates are common pesticides predominantly employed in agriculture. Large amounts of pesticides make their way into rivers and marine habitats. They accumulate in aquatic organisms through different exposure routes and gradually move up the food chain. Since contaminant bioaccumulation in animals is affected by several factors, this work harnessed several different approaches to explore the persistence of lindane, a long banned organochlorine pesticide, and carbaryl, a newer generation pesticide, in common sole (Solea solea), a major commercial species in Adriatic fisheries...
March 13, 2017: Bulletin of Environmental Contamination and Toxicology
Jungsoo Kim, Jong-Min Oh
Trace element concentrations (Cd, Pb, Cr, Al, Cu, Mn, Zn and Fe) were measured in the liver of black-tailed gull (Larus crassirostris) adults (n = 10) and nestlings (n = 10) collected at Chilsando Island, Jellanam-do, Korea, in June 2011. Adults gulls, when compared to nestlings, accumulated higher concentrations of all trace elements; Cd, 0.53 and 0.04 µg/g dry weight (dw), respectively, Pb, 0.47 and 0.21 µg/g dw, Cr, 0.08 and 0.05 µg/g dw, Al, 6.56 and 3.94 µg/g dw, Cu, 5.57 and 3.88 µg/g dw, Mn, 3...
March 11, 2017: Bulletin of Environmental Contamination and Toxicology
Priscilla Falcão de Sá Borba, Eduardo Monteiro Martins, Elisabeth Ritter, Sergio Machado Corrêa
The emission rates and the ambient air concentrations of benzene, toluene, ethyl benzene and xylenes (BTEX) were measured over the intermediate cover layer and atmosphere of the Seropédica landfill, Rio de Janeiro, Brazil. BTEX were sampled using coconut shell charcoal cartridges, followed by extraction with dichloromethane and analysis by gas chromatography with mass spectrometry. Thirteen samples were collected in areas with and without cracks in the cover layer, and six samples were collected from the ambient air...
March 2, 2017: Bulletin of Environmental Contamination and Toxicology
Iain Wilson, Adam Peters, Graham Merrington, Jeremy Pearce, Jonathan Rickwood, Paul Cusack, Kay Nimmo
Effects caused in ecotoxicity tests by physical factors due to precipitated particles cannot be used for classification in Europe under the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). For tin (Sn), results from ecotoxicity tests have been observed to be difficult to interpret in regard to exposures of dissolved Sn. Experiments were undertaken with Sn(IV) chloride at 2-2000 µg L(-1) in aquatic test media of differing pHs and hardness. A predictive Sn precipitation model was derived using these data and speciation modelling...
March 2, 2017: Bulletin of Environmental Contamination and Toxicology
A Μolla, Z Ioannou, S Mollas, E Skoufogianni, A Dimirkou
The efficiency of natural minerals, i.e. zeolite, bentonite and goethite, regarding the retention of chromium, from maize was examined. Specifically, 1.0 kg of soil, 1.0 g of soil amendment and either 50 mg L(-1) Cr(III) or 1 mg L(-1) Cr(VI) were added in plant pots. Then, seeds of maize were cultivated. Each treatment was repeated three times. The statistical results of the experiments were analyzed by LSD test. Cr(III) addition in soil has shown that zeolite was the only amendment that increased the dry weight...
February 23, 2017: Bulletin of Environmental Contamination and Toxicology
I Panagiotakis, D Dermatas
No abstract text is available yet for this article.
February 21, 2017: Bulletin of Environmental Contamination and Toxicology
Claudio Gabriel Pinheiro Geraldino, Eduardo Monteiro Martins, Cleyton Martins da Silva, Graciela Arbilla
This study investigated the potential factors that contribute to frequent high levels of ozone as well as ozone episodes in Bangu, one of the most critical areas in the city of Rio de Janeiro regarding ozone levels. For 74 days in a two-year period (10.3%), the national air quality standard was exceeded. For the same period, a total of 378 days (51.8%) had ozone concentrations that were between 80 and 160 µg m(-3). A statistical analysis of pollutant concentrations and meteorological data as well as a kinetic and mechanistic analysis of VOC reactivity showed that the high ozone concentrations did not seem to be closely related to local emissions but, rather, were related to pollutant transport and triggered by photochemical activity...
February 18, 2017: Bulletin of Environmental Contamination and Toxicology
Wen-Jun Shi, Guang-Guo Ying, Guo-Yong Huang, Yan-Qiu Liang, Li-Xin Hu, Jian-Liang Zhao, Jin-Na Zhang
Little information has so far been known on the effects of synthetic progestogen dydrogesterone (DDG) in organisms like fish. This study aimed to investigate the effects of DDG on the transcriptional and biochemical alterations in zebrafish eleuthero-embryos. Zebrafish eleuthero-embryos were analyzed for the transcriptional alterations by real-time quantitative PCR (RT-qPCR) and biochemical changes by attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FITR) after 144 h exposure to DDG...
February 18, 2017: Bulletin of Environmental Contamination and Toxicology
Yan Jiang, Yunmeng Yang, Yuling Wu, Jianbin Tao, Bo Cheng
The spatial and temporal variations of microcystins (MCs) in fishes with different trophic levels were studied monthly in Lake Chaohu in 2014. MCs content in muscle was highest in phytoplanktivorous Hypophthalmichthys molitrix (H. molitrix), followed by omnivorous Carassius auratus (C. auratus), and was lowest in herbivorous Parabramis pekinensis (P. pekinensis) and carnivorous Coilia ectenes (C. ectenes). MCs concentration in liver was highest in C. auratus, followed by H. molitrix, and was lowest in P. pekinensis and C...
February 17, 2017: Bulletin of Environmental Contamination and Toxicology
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