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Environmental Monitoring and Assessment

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https://read.qxmd.com/read/30771016/deformation-of-the-aquifer-system-under-groundwater-level-fluctuations-and-its-implication-for-land-subsidence-control-in-the-tianjin-coastal-region
#1
Jilong Yang, Guoliang Cao, Dongmei Han, Haifan Yuan, Yunzhuang Hu, Peixin Shi, Yongsheng Chen
This study demonstrates characteristics and mechanisms of deformation of an aquifer system in response to seasonal fluctuations of groundwater level when groundwater pumping has been strictly regulated after experiencing longtime land subsidence. Two boreholes with depth of 1226 m (G2 site) and 905 m (G3 site) were drilled at the Tianjin coastal region where severe land subsidence had occurred since the 1950s. Extensometer/piezometer groups installed at the G2 site illustrate synchronized variations of compaction and groundwater level since 2010 in the aquifer system between depth of 100-400 m which contributes most groundwater pumpage...
February 15, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30771013/evaluating-the-retention-capacity-of-a-new-subtropical-run-of-river-reservoir
#2
Irineu Bianchini, Ângela T Fushita, Marcela B Cunha-Santino
In man-made reservoirs, the sedimentation and assimilation of elements usually prevail as a result of a decrease in the flow regime and an increase in the hydraulic retention time. Thus, the retention capacity derives from hydraulic flushing, as well as chemical and biological reactions. The aim of this study was to assess the element retention capacity of a new subtropical reservoir (Piraju Reservoir situated in São Paulo State, Brazil). Limnological monitoring was performed over four consecutive years (August 2003 to August 2007)...
February 15, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30771003/quantifying-exposure-levels-of-coastal-facilities-to-oil-spills-in-bahrain-arabian-gulf
#3
Hassan Marzooq, Humood A Naser, E M Elkanzi
The Arabian Gulf is considered as a hub for global oil industry. Thus the Arabian Gulf marine environment is under permanent threat from oil spills due to oil exploitation, production, and transportation. Oil pollution poses adverse effects on marine environment, society, and economy. Oil spill incidents that occurred in Bahrain caused damage to marine environment and threatened the vital coastal facilities along the coastline of Bahrain. This study determined the exposure levels of coastal facilities in Bahrain to oil spills...
February 15, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30762135/atmospheric-depositions-affect-the-growth-patterns-of-scots-pines-pinus-sylvestris-l-a-long-term-cause-effect-monitoring-study-using-biomarkers
#4
Horst Schulz, Wolfgang Beck, Angela Lausch
Recording the causes, effects, and effect mechanisms of vegetation health is crucial to understand process-pattern interactions in ecosystem processes. NOX and SOX in the form of air pollution are both triggers and sources of vegetation health that can have an effect on the local or the global level and whose impacts need to be monitored. In this study, the growth patterns in Scots pines (Pinus sylvestris L.) were studied in the context of changing atmospheric depositions in the lowlands of north-eastern Germany...
February 14, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30758684/determining-potential-planting-areas-in-urban-regions
#5
Tugrul Varol, Sevgi Gormus, Serhat Cengiz, Halil Baris Ozel, Mehmet Cetin
Impermeable surfaces are getting larger in Turkey, as they are in most parts of the world as urban sprawl increases. The increase in impermeable surfaces leads to air pollution, floods, and overflows due to changes in urban landscapes and ecosystems. In order to prevent such damages, impermeable surfaces must be reduced by the means of urban afforestation. The main purpose of this study is to determine which areas are suitable for urban afforestation, and thus to improve the ecological conditions of the city...
February 13, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30758677/benthic-diatoms-as-bioindicators-of-environmental-alterations-in-different-watercourses-of-northern-italy
#6
Francesca Salmaso, Silvia Quadroni, Stefania Compare, Gaetano Gentili, Giuseppe Crosa
This work aims to evaluate the effects of different environmental factors (i.e., geographical, chemical, and hydrological) on benthic diatoms at 34 sites located in 13 watercourses of northern Italy, and to highlight possible misclassifications of the ecological status of watercourses, sensu Water Framework Directive, related to the normative index currently adopted in Italy (ICMi). The analysis of both the taxonomical and functional composition of diatom communities confirmed the presence of differences in terms of taxonomical richness, diversity, and taxa assemblages, associated to the altitude and the geological characteristics of the investigated watercourses...
February 13, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30747380/metal-accumulation-in-roadside-soils-of-rio-de-janeiro-brazil-impact-of-traffic-volume-road-age-and-urbanization-level
#7
Cassiano A R Bernardino, Claudio F Mahler, Ricardo E Santelli, Aline S Freire, Bernardo F Braz, Luís A B Novo
Traffic-related metal emissions have become a global concern due to their deposition in roadside soils and potential hazardous effects. This study evaluates metal levels in soils adjoining four highways of Rio de Janeiro (Linha Vermelha, Via Dutra, BR-465, and Avenida Brasil), chosen for their diverse traffic volumes, age, and urban/rural settings. In addition to soil physicochemical properties, 11 elements (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, V, and Zn) were assessed on samples collected at different distances from the road (1, 3, 5, 10, 15 m) and soil depths (0-15 and 15-30 cm)...
February 12, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30741362/spatial-estimation-of-surface-ozone-concentrations-in-quito-ecuador-with-remote-sensing-data-air-pollution-measurements-and-meteorological-variables
#8
Cesar I Alvarez-Mendoza, Ana Teodoro, Lenin Ramirez-Cando
Surface ozone is problematic to air pollution. It influences respiratory health. The air quality monitoring stations measure pollutants as surface ozone, but they are sometimes insufficient or do not have an adequate distribution for understanding the spatial distribution of pollutants in an urban area. In recent years, some projects have found a connection between remote sensing, air quality and health data. In this study, we apply an empirical land use regression (LUR) model to retrieve surface ozone in Quito...
February 11, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30741349/research-of-osa-seasonal-training-in-the-s%C3%A3-o-paulo-river-bts-a-tool-to-prevent-potential-ecotoxicological-impacts
#9
Adrielle Beatrice do Ó Martins, Samires Moura Malaquias Pinheiro, Lua Morena Leoncio, Milton Santos Cardoso Filho, Guilherme Silva Mesquita, Pedro Ivo de Souza Braga, Antônio Fernando Queiroz, Olívia Maria Cordeiro de Oliveira, Anderson Gomes de Oliveira, Ícaro Thiago Andrade Moreira
Oil exploitation, the basis of the world energy sector, is linked to risks and accidents, causing damage to the affected regions. Oil-suspended particulate matter aggregate (OSA) is a promising technology to mitigate those effects. The present study periodically (February 2016 and July 2016) evaluated the dispersion of oil at 28 points in the São Paulo River's estuary, Todos os Santos Bay, Brazil, analyzing the influence of suspended particulate matter (SPM), particulate organic carbon (POC), ions, and chlorophyll on the formation OSA, targeting the prediction of possible ecotoxicological risks...
February 11, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30739246/effect-of-snowmelt-infiltration-on-groundwater-recharge-in-a-seasonal-soil-frost-area-a-case-study-in-northeast-china
#10
Xinqiang Du, Min Fang, Hang Lv, Tingting Cheng, Peidong Hong, Chang Liu
The effect of spring snowmelt infiltration in a seasonal soil frost area on groundwater recharge was evaluated by systematically monitoring meteorological factors, soil temperature and humidity, groundwater table and temperature, electrical conductivity, and the value of δ18 O in a small field site over a 2-year period. The variation of soil temperature and humidity, groundwater table during the freezing period, and the snowmelt period respectively, as well as their correspondence to the relevant environmental factors, and the influencing factors of the permeability of frozen layer were analyzed...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30739211/hydrochemistry-and-water-quality-index-of-groundwater-resources-in-enugu-north-district-enugu-nigeria
#11
Nwachukwu R Ekere, Vitus E Agbazue, Benedict U Ngang, Janefrances N Ihedioha
The physicochemical parameters of groundwater in 12 cluster boreholes in Enugu North district/region, southeast Nigeria, were studied. Twelve physicochemical parameters were determined in triplicates at monthly intervals for 3 months in dry season and then repeated in rainy season in 120 boreholes grouped into 12 clusters for 2 years. The range of values obtained during dry season include phosphate (0.12-0.87 mg/L), nitrate (1.24-8.72 mg/L), sulfate (20.10-24.34 mg/L), pH (4.9-7.5), E.C. (10.0-410.0 μS/cm), total acidity (0...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30739209/the-association-of-gastrointestinal-cancers-esophagus-stomach-and-colon-with-solar-ultraviolet-radiation-in-iran-an-ecological-study
#12
Esmail Najafi, Narges Khanjani, Mohammad Reza Ghotbi, Mohammad Esmaeil Masinaei Nejad
Iran has variations in the incidence of cancer in its different provinces. Moreover, it is one of the countries with a high incidence of gastrointestinal cancers in the world. The aim of this study was to investigate the relation between the incidence of esophageal, stomach, and colon cancers with ultraviolet radiation. This is an ecological study. The age-standardized incidence of cancer from 2004 to 2008 was obtained from the National Cancer Registry of Iran for all provinces. UV index data was taken from the world weather site...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30739207/assessment-of-nitrate-and-nitrite-levels-in-treated-wastewater-soil-and-vegetable-crops-at-the-upper-reach-of-zarqa-river-in-jordan
#13
Riyadh Muhaidat, Khaldoon Al-Qudah, Ahmed A Al-Taani, Sufian AlJammal
The purpose of this study is to examine the impact of treated wastewater irrigation on agricultural soils and vegetables along the upper reach of Zarqa River (Jordan). Multiple samples of reclaimed wastewater, soil pits from farms, and vegetables (spinach, parsley, cabbage cauliflower, radish, and onion) were collected and analyzed for pH, total dissolved solids (TDS), and/or NO3 - and NO2 - contents. The average levels of NO3 - and NO2 - in treated wastewater samples varied from 167.2 to 209.9 mg/l for NO3 - and from 80...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30739205/comparison-of-soxhlet-and-reflux-techniques-for-extraction-and-characterisation-of-potential-endocrine-disrupting-compounds-from-solid-waste-dumpsite-soil
#14
Mosotho J George, Kwenga F Sichilongo, Tsifhiwa Ramabulana, Ntakadzeni E Madala, Ian A Dubery
Landfill leachate contains a myriad of hazardous chemicals; as such, they should always be planned and constructed following approved guidelines. A sample of soil collected from the old quarry designated as the official solid waste disposal site in Maseru, the capital city of Lesotho, was exposed to two extraction techniques, namely Soxhlet and reflux extractions, for characterisation of the potential endocrine-disrupting chemicals in the leachate. Principal component analysis was used to compare the extractability of these chemicals between the two methods, and it revealed that phthalates extract better in Soxhlet than in reflux extraction...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30737571/root-structural-changes-of-two-remediator-plants-as-the-first-defective-barrier-against-industrial-pollution-and-their-hyperaccumulation-ability
#15
Narjes S Mohammadi Jahromi, Parissa Jonoubi, Ahmad Majd, Mansooreh Dehghani
In the present day, plants are increasingly being utilized to safeguard the environment. In this study, we used Salsola crassa M. B. and Suaeda maritima L. Dumort for phytoremediation of water contaminated with heavy metals and simultaneous examination of the effect of industrial pollution on their root structures. After irrigation of a treatment group with wastewater and a control group with fresh water for 3 months, we fixed the root parts in the FAA fixator for developmental study, and measured the concentrations of Co, Ni, Zn, As, Cu, and Pb in the roots, shoots, soil, and irrigating water...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30737570/wastewater-discharge-with-phytoplankton-may-favor-cyanobacterial-development-in-the-main-drinking-water-supply-river-in-uruguay
#16
H Olano, F Martigani, A Somma, L Aubriot
The main drinking water source supplying Uruguay (Santa Lucía River, SLR) was threatened in 2013 by a cyanobacterial bloom transported downstream to the water treatment plant that provides water to half of this country population. Several eutrophic reservoirs and stabilization ponds located in the river basin may have been the source of cyanobacterial populations. Such conditions may be common in productive basins; however, few studies have evaluated the impact of microalgae from wastewater stabilization ponds on rivers and its viability downstream...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30737564/evaluating-urban-surface-water-quality-in-luton
#17
Tahmina Ajmal, Tochukwu Kene Anyachebelu, Marc Conrad, David M Rawson
Using a single numerical value to indicate the quality of water, a so-called Water Quality Index (WQI) is a well-established way of rating the overall water quality status of a given water body. During the last few years, researchers in the water sector have developed different such indices to address their specific needs. In this study, we attempt to obtain a WQI formula suited for evaluating the water quality of the River Lea. We have selected four different sites on the River Lea and explore the possibility of monitoring using a minimum number of parameters only...
February 9, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30734870/synthesis-of-graphene-oxide-based-poly-p-aminophenol-composite-and-its-application-in-solid-phase-extraction-of-trace-amount-of-ni-ii-from-aquatic-samples
#18
Mohammadjavad Hosseinnia Kojidi, Alireza Aliakbar
The results of investigations about the polymerization of p-aminophenol in neutral-weak alkaline medium (pH = 7-8) in our lab showed that the produced polymer which was insoluble in water and soluble in methanol has high tendency to form selectively a blue complex with Ni(II). Investigations into the chemical structure of polymer showed that polymer has a special structure, similar to polyamine in which the aromatic rings are connected through O-bridges. Based on these data, it was decided to polymerize p-aminophenol in situ on graphene oxide (GO) and use as a new sorbent for selective separation and preconcentration of trace amount of Ni(II) from water samples...
February 8, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30734141/a-geochemical-analogy-between-the-metal-sources-in-kuwait-bay-and-territorial-sea-water-of-kuwait
#19
Chidambaram Sabarathinam, Harish Bhandary, Asim Al-Khalid
The sea water serves as a source for desalination and shelter for dependent biota. To understand the sources of metal in Kuwait Bay and the open sea, samples were collected and analyzed for metals like B, Li, Sr, Hg, Pb, Ba, Fe, Zn, Mn, Be, Cd, Co, Cr, Ni, Se, V, Al, Mo, and As. The comparison of Bay and Seawater shows that most of the metals were higher in sea water. Samples were collected in two different transects in the territorial sea water (TSW), the northern, and the southern transects. The heavy metal evaluation index and degree of contamination calculated for Bay and TSW show that they are contaminated, and the degree was higher in TSW...
February 8, 2019: Environmental Monitoring and Assessment
https://read.qxmd.com/read/30734125/biological-water-quality-assessment-in-the-degraded-mutara-rangelands-northeastern-rwanda
#20
Marie-Claire Dusabe, Torsten Wronski, Guilherme Gomes-Silva, Martin Plath, Christian Albrecht, Ann Apio
Rwanda is a heavily overpopulated country that also suffers from overstocking with livestock, especially following the return of war refuges after the civil war (1991-1995). At present, approximately 20% of the human population in Nyagatare District in northeastern Rwanda has no access to clean drinking water and sanitation. We used a biotic index based on the presence of selected families of aquatic macroinvertebrates, derived from the "Tanzania River Scoring System" (TARISS), to assess water quality at N = 55 sites in the Mutara grasslands in Nyagatare District...
February 8, 2019: Environmental Monitoring and Assessment
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