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Environmental Monitoring and Assessment

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https://www.readbyqxmd.com/read/29159470/biogeochemical-assessment-of-the-urban-area-in-moscow
#1
Vadim Ermakov, Leonid Perelomov, Sabsbakhor Khushvakhtova, Sergey Tyutikov, Valentina Danilova, Vladimir Safonov
The biogeochemical and ecological assessment of the industrial city territory including urban soils and trees was carried out. Chemical (macroelement and microelement) composition of the city soils, morphological and biochemical properties of the linden leaves, possible impact of de-icing salts on soil and tree state, the correlation between the content of trace elements, and the S-containing plant compounds (phytochelatins) were included in the assessment. It was found that concentrations of trace elements in the soils near road with intensive traffic are changed from the soils, located at a distance of 40-50 m from the road...
November 21, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29151127/permeability-of-hair-to-cadmium-copper-and-lead-in-five-species-of-terrestrial-mammals-and-implications-in-biomonitoring
#2
A N Rendón-Lugo, P Santiago, I Puente-Lee, L León-Paniagua
The capacity of mammal hair to absorb toxic metals and its utility in biomonitoring has been broadly studied. Though these metal-binding properties has generally been attributed to the sulphur contained in cysteine, an amino acid that forms part of keratin, there are not many experimental studies that analyze the role of sulphur in the external deposition of potentially toxic metallic elements in order to better understand the potential of hair in biomonitoring and generate better tools for differentiating between internal and external deposition of contaminants...
November 18, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29150761/comparative-study-of-fluvial-lakes-in-floodplains-of-the-elbe-lu%C3%A5-nice-and-svratka-rivers-based-on-hydrochemical-and-biological-approach
#3
Petra Havlíková, Tomáš Chuman, Bohumír Janský
The aim of the thesis was to specify key differences in chemistry and biota (zooplankton communities) among fluvial lakes in three regions of the Czech Republic: the central part of the Elbe River, the upper part of the Lužnice River and the upper part of the Svratka River. The ten studied lakes of the three regions differ in size, geology, shading, connection with the river and the level of anthropogenic impact. The following hypotheses were tested: (1) The water chemistry of fluvial lakes significantly differs in different floodplains...
November 17, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29147882/growth-inhibition-patterns-and-transfer-factor-profiles-in-arsenic-stressed-rice-oryza-sativa-l
#4
Ha-Il Jung, Jinwook Lee, Mi-Jin Chae, Myung-Suk Kong, Chang-Hoon Lee, Seong-Soo Kang, Yoo-Hak Kim
Arsenic (As) accumulation in rice owing to uptake from the soil is a critical human health issue. Here, we studied the chemical properties of As-treated soils, growth inhibition patterns of As-stressed rice plants, changes in the As content of soil and soil solutions, and the relationship between As accumulation and As transfer factor from the soil to the rice organs. Rice plants were cultivated in a greenhouse under four concentrations of As: 0 (control), 25, 50, and 75 mg kg(-1). A significant positive correlation was found between available P2O5 and exchangeable K and between As concentration and available P2O5 or exchangeable K...
November 16, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29143886/rapid-in-situ-assessment-for-predicting-soil-quality-using-an-algae-soaked-disc-seeding-assay
#5
Sun-Hwa Nam, Jongmin Moon, Shin Woong Kim, Hakyeong Kim, Seung-Woo Jeong, Youn-Joo An
The soil quality of remediated land is altered and this land consequently exerts unexpected biological effects on terrestrial organisms. Therefore, field evaluation of such land should be conducted using biological indicators. Algae are a promising new biological indicator since they are a food source for organisms in higher soil trophic levels and easily sampled from the soil. Field evaluation of soil characteristics is preferred to be testing in laboratory conditions because many biological effects cannot be duplicated during laboratory evaluations...
November 16, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29138943/contaminants-of-emerging-concern-in-surface-waters-in-barbados-west-indies
#6
Quincy A Edwards, Sergei M Kulikov, Leah D Garner-O'Neale, Chris D Metcalfe, Tamanna Sultana
Contaminants of emerging concern (CECs), including pharmaceuticals, artificial sweeteners, steroid hormones, and current-use pesticides have been detected in surface waters around the world, but to date, there have been no reports in the peer-reviewed literature on the levels of these classes of contaminants in freshwater resources in the Caribbean region. In the present study, multi-residue solid phase extraction (SPE) and liquid chromatography with tandem mass spectroscopy (LC-MS/MS) were used to analyze grab samples of surface waters collected from five different watersheds in Barbados, West Indies...
November 14, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29134383/spatial-distribution-and-metal-contamination-in-the-coastal-sediments-of-al-khafji-area-arabian-gulf-saudi-arabia
#7
Talal Alharbi, Hussain Alfaifi, Sattam A Almadani, Abdelbaset El-Sorogy
To document the spatial distribution and metal contamination in the coastal sediments of the Al-Khafji area in the northern part of the Saudi Arabian Gulf, 27 samples were collected for Al, V, Cr, Mn, Cu, Zn, Cd, Pb, Hg, Sr, As, Fe, Co, and Ni analysis using inductively coupled plasma-mass spectrometer (ICP-MS). The results revealed the following descending order of the metal concentrations: Sr > Fe > Al > As > Mn > Ni > V > Zn > Cr > Cu > Pb > Co > Hg > Cd. Average levels of enrichment factor of Sr, As, Hg, Cd, Ni, V, Cu, Co, and Pb were higher than 2 (218...
November 13, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29134327/effects-of-land-use-types-on-dissolved-trace-metal-concentrations-in-the-le-an-river-basin-china
#8
Yinghui Jiang, Zhenglei Xie, Hua Zhang, Huanqing Xie, Yun Cao
Using land use types in multiple spatial scales (entire basin, buffer zones, and slopes) as well as statistical and spatial analysis, relationships between land use types and concentrations of dissolved trace metals were determined in the Le'an River Basin, China. The result showed that farmland and urban land were determined as the source of the pollutants, while forestland and grassland were identified as the sink of the pollutants. The temporal differences of relationships between land use types and concentrations of dissolved trace metals mainly due to the discrepancy of rainfall characteristics...
November 13, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29134287/particulate-matter-levels-in-a-south-american-megacity-the-metropolitan-area-of-lima-callao-peru
#9
Jose Silva, Jhojan Rojas, Magdalena Norabuena, Carolina Molina, Richard A Toro, Manuel A Leiva-Guzmán
The temporal and spatial trends in the variability of PM10 and PM2.5 from 2010 to 2015 in the metropolitan area of Lima-Callao, Peru, are studied and interpreted in this work. The mean annual concentrations of PM10 and PM2.5 have ranges (averages) of 133-45 μg m(-3) (84 μg m(-3)) and 35-16 μg m(-3) (26 μg m(-3)) for the monitoring sites under study. In general, the highest annual concentrations are observed in the eastern part of the city, which is a result of the pattern of persistent local winds entering from the coast in a south-southwest direction...
November 13, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29130144/preparation-of-biosorbents-from-the-jatoba-hymenaea-courbaril-fruit-shell-for-removal-of-pb-ii-and-cd-ii-from-aqueous-solution
#10
Isis P A F Souza, André L Cazetta, Osvaldo Pezoti, Vitor C Almeida
In this study, the biosorption properties of Jatoba (Hymenaea courbaril) fruit shell for removal of Pb(II) and Cd(II) ions from aqueous solutions, and its potential as a low-cost biosorbent for water treatment, were investigated. The Jatoba fruit shell (JBin) was subjected to different treatments with heated water (JBH2O) and sodium hydroxide (JBNaOH) to modify its surfaces and improve its adsorption properties. The chemical modification of the surfaces of the resulting materials was confirmed by analyzing the compositions and structural features of the raw material and the chemically treated materials using SEM, FTIR, (13)C NMR, and pHpzc...
November 12, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29129001/impact-of-temperature-and-storage-time-on-the-migration-of-antimony-from-polyethylene-terephthalate-pet-containers-into-bottled-water-in-qatar
#11
Fatima Al-Otoum, Mohammad A Al-Ghouti, Ozeas S Costa, Majeda Khraisheh
Prosperity in Qatar and the consequent stresses on water resources resulted in a sustainable increase in the bottled drinking water market. Reports on health concerns and possible migration of chemicals from the plastic material into the water have driven the current investigation. This study aims to address the extent of antimony (Sb) leaching from polyethylene terephthalate (PET) water bottles subject to temperature variations (24-50 °C) due to Qatar's hot climate and improper storage conditions. A representative basket including 66 different imported and locally produced water bottles was considered...
November 12, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29128974/estimating-the-fluctuation-of-lake-hulun-china-during-1975-2015-from-satellite-altimetry-data
#12
Ying Liu, Hui Yue
Lake level, area, and volume changes can describe the fluctuation of water bodies. In this study, ICESat/Hydroweb and Landsat data recorded with irregularly time intervals from 1975 to 2015 were used to examine changes in lake level and area which were combined to indirectly estimate water volume variations of Lake Hulun. The time series of lake level, area, and volume variations of Lake Hulun exhibited a fluctuating trend from 1975 to 1984 and the mean value were about 542.57 m, 2065.76 km(2), and - 0.045 km(3), respectively and an increasing trends showed during 1984-2000...
November 11, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29127539/biotreatment-of-effluent-from-adire-textile-factories-in-ibadan-nigeria
#13
Oladapo T Okareh, Tuntunlade F Ademodi, Etinosa O Igbinosa
In this present study, bacteria were isolated from wastewater and polluted soil collected from two cottage textile factories in Ibadan. These bacteria isolates were used for the biotreatment of textile mill effluent. The physicochemical parameters of the textile mill effluent before treatment were carried out and percentage decolourisation of the effluent was analysed using ultraviolet-visible spectroscopy (UV-vis technique). The degradation products of the textile mill effluent characterised by Fourier transform infrared spectroscopy (FTIR)...
November 10, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124475/pre-oxidation-of-low-density-polyethylene-ldpe-by-ultraviolet-light-uv-promotes-enhanced-degradation-of-ldpe-in-soil
#14
Prosun Tribedi, Samrat Dey
Polyethylene represents nearly 64% of all the synthetic plastics produced and are mainly used for domestic and industrial applications. Their extensive use poses a serious environmental threat because of their non-biodegradable nature. Among all the polyethylene remediation strategies, in situ bioremediation happens to be the safest and efficient one. In the current study, efforts had been given to compare the extent of LDPE degradation under UV-treated and UV-untreated conditions by soil microcosm. Landfill soil was collected and UV-treated and UV-untreated LDPE were added separately to the soil following incubation under similar conditions...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124474/growth-chain-formation-and-toxin-production-by-southern-brazilian-pseudo-nitzschia-isolates-under-laboratory-conditions
#15
Pedro Rebelo Wadt, Luiz Laureno Mafra, Camila Prestes Dos Santos Tavares, Luciano Felício Fernandes, Luís Antonio de Oliveira Proença
Pseudo-nitzschia is a diatom genus capable of producing the neurotoxin domoic acid (DA), which has been related to mortalities of marine vertebrates, and the amnesic shellfish poisoning (ASP) in human consumers of contaminated bivalves. This study reports DA production among Pseudo-nitzschia strains isolated from shellfish farming areas in southern Brazil. Twenty-seven cultures of potentially toxigenic Pseudo-nitzschia species were established. Growth, stepped-chain formation, and DA production were evaluated in static, intermittently illuminated (12:12 photoperiod) batch cultures for 12 selected strains, and under continuous light and/or turbulence for a single Pseudo-nitzschia calliantha strain...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124463/contamination-levels-toxicity-profiles-and-emission-sources-of-polycyclic-aromatic-hydrocarbons-pahs-in-the-soils-of-an-emerging-industrial-town-and-its-environs-in-the-southeastern-nigeria
#16
Anthony C Ofomatah, Chukwuma O B Okoye
Polycyclic aromatic hydrocarbon (PAH) concentrations in Nnewi and its environs were determined. Soil samples were extracted by sonication using hexane:dichloromethane (3:1) mixture and determined by gas chromatography-flame ionization detection. The total PAHs concentrations (μg/kg) were 16.681 to 46.815, being three orders of magnitude lower than the maximum permissible level recommended by the Agency for Toxic Substances and Disease Registry (ATSDR). These concentrations followed this order: industrial ˃ farmlands ˃ commercial ˃ residential...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124450/stepwise-strategy-for-monitoring-toxic-cyanobacterial-blooms-in-lentic-water-bodies
#17
Inês P E Macário, Bruno B Castro, Isabel M S Nunes, Cristina Pizarro, Carla Coelho, Fernando Gonçalves, Daniela R de Figueiredo
Climate change has been causing the increase in frequency, severity, and duration of harmful algal blooms, which makes the establishment of water management strategies indispensable. For cyanobacteria, several methods are currently used in monitoring programs. However, these methods are time-consuming and require specialists, and results are usually not provided within an adequate timeframe for taking timely mitigation actions. This work proposes a strategy for a faster, easier, and more cost-effective monitoring of cyanobacterial blooms, using a stepwise approach based on fluorometric determination of phycocyanin at an early stage...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124425/steroid-hormones-in-environmental-matrices-extraction-method-comparison
#18
Gangadhar Andaluri, Rominder P S Suri, Kendon Graham
The U.S. Environmental Protection Agency (EPA) has developed methods for the analysis of steroid hormones in water, soil, sediment, and municipal biosolids by HRGC/HRMS (EPA Method 1698). Following the guidelines provided in US-EPA Method 1698, the extraction methods were validated with reagent water and applied to municipal wastewater, surface water, and municipal biosolids using GC/MS/MS for the analysis of nine most commonly detected steroid hormones. This is the first reported comparison of the separatory funnel extraction (SFE), continuous liquid-liquid extraction (CLLE), and Soxhlet extraction methods developed by the U...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124423/effects-of-mutual-intercropping-on-the-cadmium-accumulation-in-accumulator-plants-stellaria-media-malachium-aquaticum-and-galium-aparine
#19
Qiyu Lu, Jianhua Li, Fabo Chen, Ming'an Liao, Lijin Lin, Yi Tang, Dong Liang, Hui Xia, Yunsong Lai, Xun Wang, Cheng Chen, Wei Ren
Intercropping affects heavy-metal uptake in plants. In this study, three cadmium (Cd)-accumulator species (Stellaria media, Malachium aquaticum, and Galium aparine) were intercropped together in Cd-contaminated soil to study the effects of intercropping on co-remediation. Mutual intercropping significantly increased the biomasses of S. media, M. aquaticum, and G. aparine compared with their respective monocultures. The photosynthetic pigment contents of three species were not significantly affected by mutual intercropping...
November 9, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29124415/spatial-and-temporal-distribution-of-carbon-dioxide-gas-using-gosat-data-over-iran
#20
Samereh Falahatkar, Seyed Mohsen Mousavi, Manochehr Farajzadeh
CO2 concentration (XCO2) shows the spatial and temporal variation in Iran. The major purpose of this investigation is the assessment of the spatial distribution of carbon dioxide concentration in the different seasons of 2013 based on the Thermal And Near Infrared Sensor for Carbon Observation-Fourier Transform Spectrometer (TANSO-FTS) level 2 GOSAT data by implementing the ordinary kriging (OK) method. In this study, the Land Surface Temperature (LST), Normalized Difference Vegetation Index (NDVI) data from the MODerate resolution Imaging Spectroradiometer (MODIS), and metrological parameters (temperature and precipitation) were used for the analysis of the spatial distribution of CO2 over Iran in 2013...
November 9, 2017: Environmental Monitoring and Assessment
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