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Environmental Monitoring and Assessment

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https://www.readbyqxmd.com/read/28726176/quality-assessment-and-public-health-status-of-harvested-rainwater-in-a-peri-urban-community-in-edo-state-of-nigeria
#1
Isoken H Igbinosa, Isoken T Aighewi
The harvested rainwater is an alternative water source in communities where there is limited or scarcity of water distribution system. However, contamination of roof-harvested rainwater is of immense concern to the general public health. Therefore, this study was initiated to assess the levels of physicochemical quality and heavy metal concentrations in the harvested rainwater from Oluku communities in Benin City, Edo State, Nigeria. The roof-harvested rainwater samples were collected from 20 independent different residential households in Oluku communities, between April 2015 and September 2015...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28726175/using-ensemble-forecasting-to-examine-how-climate-change-promotes-worldwide-invasion-of-the-golden-apple-snail-pomacea-canaliculata
#2
Juncheng Lei, Lian Chen, Hong Li
The golden apple snail, Pomacea canaliculata, is one of the world's 100 most notorious invasive alien species. Knowledge about the critical climate variables that limit the global distribution range of the snail, as well as predictions of future species distributions under climate change, is very helpful for management of snail. In this study, the climatically suitable habitats for this kind of snail under current climate conditions were modeled by biomod2 and projected to eight future climate scenarios (2 time periods [2050s, 2080s] × 2 Representative Concentration Pathways [RCPs; RCP2...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28726174/comparative-study-of-the-effects-of-a-small-scale-trout-farm-on-the-macrozoobenthos-potamoplankton-and-epilithic-diatom-communities
#3
K Stojanović, M Živić, Z Dulić, Z Marković, J Krizmanić, Dj Milošević, B Miljanović, J Jovanović, D Vidaković, I Živić
Trout farms are one of the major sources of pollution of highland streams and rivers, which are very sensitive ecosystems otherwise scarcely influenced by human activities. A trout farm with low annual production was chosen for comparative monitoring of its effects on the macrozoobenthos, epilithic diatom, and potamoplankton communities in the receiving stream. Research was conducted every 2 months during a period of 1 year (one control point and three localities downstream from the farm). The fish farm discharge induced moderate alteration of environmental factors in the receiving watercourse, viz...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28721589/recent-developments-in-polyfluoroalkyl-compounds-research-a-focus-on-human-environmental-health-impact-suggested-substitutes-and-removal-strategies
#4
John Baptist Nzukizi Mudumbi, Seteno Karabo Obed Ntwampe, Tandi Matsha, Lukhanyo Mekuto, Elie Fereche Itoba-Tombo
Between the late 1940s and early 1950s, humans manufactured polyfluoroalkyl compounds (PFCs) using electrochemical fluorination and telomerisation technologies, whereby hydrogen atoms are substituted by fluorine atoms, thus conferring unnatural and unique physicochemical properties to these compounds. Presently, there are wide ranges of PFCs, and owing to their bioaccumulative properties, they have been detected in various environmental matrices and in human sera. It has thus been suggested that they are hazardous...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28721588/impact-of-highway-construction-on-water-bodies-a-geospatial-assessment
#5
Ritesh Vijay, Vikash K Kushwaha, Trupti Mardikar, P K Labhasetwar
India has witnessed a massive infrastructure boom in the past few years. One of such projects is National Highway-7 (NH-7), a North-South highway connecting Kanyakumari, Tamil Nadu, to Varanasi, Uttar Pradesh, traversing many water bodies. The present study aims to assess the pre- and post-construction impact due to existing, new and widened NH-7 on the physical status of the water bodies, using remote sensing techniques. Satellite images spanning 22 years were procured and analysed for change detection in land use and land cover within the waterbodies...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28718096/contamination-status-of-arsenic-in-fish-and-shellfish-from-three-river-basins-in-ghana
#6
Francis Gbogbo, Samuel Darlynton Otoo, Obed Asomaning, Robert Quaye Huago
Fish and shellfish are regularly consumed and sold in Ghana, yet studies on arsenic pollution in Ghana are limited largely to ground water. This study evaluated arsenic concentrations in seven species of shellfish and 10 species of fish inhabiting the mouth of Ankobra, Densu and Volta basins in Ghana and assessed the public health implications. Arsenic levels varied from 0.2 to 2.2 mg L(-1) in the three rivers and were higher than WHO recommended values of 10 μg L(-1) for drinking water. Except for Periophthalmus sp...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28718095/changes-in-sub-soil-river-water-quality-upon-its-open-storage-a-case-study
#7
A K Mohanty, K K Satpathy, M V R Prasad
A study was carried out to investigate the changes in the physicochemical and biological properties of sub-soil river water upon its storage in a man-made reservoir. Palar sub-soil and reservoir water samples were collated fortnightly for a period of 5 years (2010-2014). The open reservoir is used as a reliable raw water source for condenser cooling systems and for the demineralizing (DM) plant input of Fast Breeder Test Reactor (FBTR), Madras Atomic Power Station (MAPS), and other laboratories at Kalpakkam, southeast coast of India...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28718094/distribution-source-analysis-and-ecological-risk-assessment-of-polycyclic-aromatic-hydrocarbons-in-the-typical-topsoil-of-the-issyk-kul-lake-basin
#8
Wen Liu, Long Ma, Jilili Abuduwaili, Yaoming Li
The concentration, distribution, compositional characteristics, and pollution sources of 16 polycyclic aromatic hydrocarbons (PAHs) in the topsoil of Issyk-Kul Lake Basin were studied, and their ecological risks were evaluated in this paper. The total concentration of the 16 PAHs was 68.58-475.95 ng g(-1), with an average of 134.45 ng g(-1). Four-ring PAHs accounted for 43.2% of the total PAHs, two- and three-ring PAHs accounted for 39.4%, and five- and six-ring PAHs accounted for 15.8%. The total concentration of the seven carcinogenic PAHs was 7...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28718093/evolvement-rules-of-basin-flood-risk-under-low-carbon-mode-part-ii-risk-assessment-of-flood-disaster-under-different-land-use-patterns-in-the-haihe-basin
#9
Fawen Li, Liping Wang, Yong Zhao
Land use pattern contains a large amount of information about the flood hazard-formative environments, which is the most sensitive factor in hazard-formative environments. In this paper, based on the land use pattern in 2008 (the base year) and in 2020 (the planning year), the comparative analysis of flood disaster risk changes in Haihe basin were studied by the spatial analysis function of ARCGIS and the analytic hierarchy process (AHP). The results showed the flood disaster risk in Haihe basin had an obvious zonality in the space, among which low risk was located in the northwest regions, and high risk was located in the southeast regions...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28710691/monitoring-of-inland-waters-for-culturing-shrimp-litopenaeus-vannamei-application-of-a-method-based-on-survival-and-chemical-composition
#10
G Valencia-Castañeda, M I Millán-Almaraz, J F Fierro-Sañudo, M G Fregoso-López, F Páez-Osuna
This study evaluated the suitability of 21 inland waters (16 well waters and 5 surface waters) from Northwest Mexico via short- (48 h) and medium-term (28 days) tests using postlarvae (PL18) of Litopenaeus vannamei. In the short test, survival was assessed at 48 h after shrimp were placed in groups of 10 postlarvae into 2-L containers of inland water, to which they had been previously acclimated. The second, medium-term test consisted of four replicates with 10 postlarvae, and each group was placed in 15-L containers with the treatment water...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28710690/a-preliminary-assessment-of-heavy-metals-in-sediments-from-the-cipero-and-south-oropouche-rivers-in-trinidad-west-indies
#11
Faisal K Mohammed, Jason Sieuraj, Mohindra Seepersaud
The increasing urbanization and industrial processes in Trinidad within recent years could pose a possible contamination threat to the aquatic environment. The southwestern part of the island houses numerous industrial activities, and the recent sightings of schools of dead fish and other marine organisms in that locality is cause for concern prompting research into this occurrence. Sediment and surface water samples from the Cipero and South Oropouche Rivers in South Trinidad were analyzed for their heavy metal content (Cd, Cr, Cu, Mn, Ni, Pb, and Zn)...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28710689/assessment-of-major-ions-and-trace-elements-in-groundwater-supplied-to-the-monterrey-metropolitan-area-nuevo-le%C3%A3-n-mexico
#12
Abrahan Mora, Jürgen Mahlknecht, Laura Rosales-Lagarde, Arturo Hernández-Antonio
The Monterrey metropolitan area (MMA) is the third greatest urban area and the second largest economic city of Mexico. More than four million people living in this megacity use groundwater for drinking, industrial and household purposes. Thus, major ion and trace element content were assessed in order to investigate the main hydrochemical properties of groundwater and determine if groundwater of the area poses a threat to the MMA population. Hierarchical cluster analysis using all the groundwater chemical data showed five groups of water...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28707254/effect-of-oil-palm-on-the-plecoptera-and-trichoptera-insecta-assemblages-in-streams-of-eastern-amazon
#13
Carina Kaory Sasahara de Paiva, Ana Paula Justino de Faria, Lenize Batista Calvão, Leandro Juen
The production of oil palm is expected to increase in the Amazon region. However, expansion of oil palm plantation leads to significant changes in the physical structure of aquatic ecosystems, mainly through the reduction of riparian vegetation that is essential for aquatic biodiversity. Here, we evaluated the effects of oil palm on the physical habitat structure of Amazonian stream environments and assemblages of Plecoptera and Trichoptera (PT), ​both found in these streams. We compared streams sampled in oil palm plantations (n = 13) with natural forest areas ("reference" streams, n = 8), located in the eastern Amazon, Brazil...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28707253/the-impact-of-forest-roads-on-understory-plant-diversity-in-temperate-hornbeam-beech-forests-of-northern-iran
#14
Azade Deljouei, Ehsan Abdi, Matteo Marcantonio, Baris Majnounian, Valerio Amici, Hormoz Sohrabi
Forest roads alter the biotic and abiotic components of ecosystems, modifying temperature, humidity, wind speed, and light availability that, in turn, cause changes in plant community composition and diversity. We aim at investigating and comparing the diversity of herbaceous species along main and secondary forest roads in a temperate-managed hornbeam-beech forest, north of Iran. Sixteen transects along main and secondary forest roads were established (eight transects along main roads and eight along secondary roads)...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28702879/assessment-of-genotoxicity-amongst-smokers-alcoholics-and-tobacco-chewers-of-north-india-using-micronucleus-assay-and-urinary-8-hydroxyl-2-deoxyguanosine-as-biomarkers
#15
S V S Rana, Yeshvandra Verma, Gagan Deep Singh
The main objective of the present study was to screen the genotoxicity caused by individual and combined habits of smoking, tobacco chewing, and alcohol consumption in human population of North India. Study recruited 67 male subjects aged 25 to 65 years. Buccal mucosal cells were subjected to micronucleus (MN) assay, and 8-hydroxyl-2-deoxyguanosine (8-OHdG) was estimated in their urine samples. Number and shape of the MN cells varied in the buccal epithelium of different groups. Maximum number of MN (0.47%) were found in tobacco chewers followed by smokers (0...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28699119/deposited-atmospheric-dust-as-influenced-by-anthropogenic-emissions-in-northern-china
#16
Yanli Lyu, Lianyou Liu, Lanlan Guo, Yanyan Yang, Zhiqiang Qu, Xia Hu, Guoming Zhang
Atmospheric particulate matter (PM) from multinatural and anthropogenic sources poses serious risk to human health and contaminates soil and water resources as it settles back to ground environment and ecosystem. In this study, dust deposition flux (DDF), pollution load index (PLI) of heavy metals, enrichment factor (EF), and settling flux (SF) of eighteen chemical elements were investigated in comparison with crustal composition to assess the influence of anthropogenic emission on PM in major northern Chinese cities...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28699118/fractionation-of-trace-elements-and-human-health-risk-of-submicron-particulate-matter-pm1-collected-in-the-surroundings-of-coking-plants
#17
Elwira Zajusz-Zubek, Tomasz Radko, Anna Mainka
Samples of PM1 were collected in the surroundings of coking plants located in southern Poland. Chemical fractionation provided information on the contents of trace elements As, Cd, Co, Cr, Hg, Mn, Ni, Pb, Sb and Se in all mobile (F1-F3) and not mobile (F4) fractions of PM1 in the vicinity of large sources of emissions related to energochemical processing of coal during the summer. The determined enrichment factors indicate the influence of anthropogenic sources on the concentration of the examined elements contained in PM1 in the areas subjected to investigation...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28699117/determination-of-total-mercury-in-aluminium-industrial-zones-and-soil-contaminated-with-red-mud
#18
Oqil Rasulov, Andrea Zacharová, Marián Schwarz
This study investigated total mercury contents in areas impacted by aluminium plants in Tajikistan and Slovakia and in one area flooded with red mud in Hungary. We present the first determination of total mercury contents in the near-top soil (0-10 and 10-20 cm) in Tajikistan and the first comparative investigation of Tajikistan-Slovakia-Hungary. The Tajik Aluminium Company (TALCO) is one of the leading producers of primary aluminium in Central Asia. In the past 30 years, the plant has been producing large volumes of industrial waste, resulting in negative impacts on soil, groundwater and air quality of the surrounding region...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28695403/hybrid-coagulation-uf-processes-for-spent-filter-backwash-water-treatment-a-comparison-studies-for-pafcl-and-fecl3-as-a-pre-treatment
#19
Afshin Ebrahimi, Mohammad Mehdi Amin, Hamidreza Pourzamani, Yaghoub Hajizadeh, Amir Hossein Mahvi, Mokhtar Mahdavi, Mohammad Hassan Rabie Rad
In this study, the reclamation of clean water from spent filter backwash water (SFBW) was investigated through pilot-scale experiments. The pilot plant consisted of pre-sedimentation, coagulation, flocculation, clarification, and ultrafiltration (UF). Two coagulants of PAFCl and FeCl3 were investigated with respect to their performance on treated SFBW quality and UF membrane fouling. At the optimum dose of PAFCl and FeCl3 turbidity removal of 99.6 and 99.4% was attained, respectively. PAFCl resulted in an optimum UV254, TOC, and DOC removal of 80, 83...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28689320/pollutant-loading-from-low-density-residential-neighborhoods-in-california
#20
Andrew E Bale, Steven E Greco, Bruno J L Pitton, Darren L Haver, Lorence R Oki
This paper presents a comparison of pollutant load estimations for runoff from two geographically distinct residential suburban neighborhoods in northern and southern California. The two neighborhoods represent a single urban land use type: low-density residential in small catchments (<0.3 km(2)) under differing regional climates and irrigation practices. Pollutant loads of pesticides, nutrients, and drinking water constituents of concern are estimated for both storm and non-storm runoff. From continuous flow monitoring, it was found that a daily cycle of persistent runoff that peaks mid-morning occurs at both sites...
August 2017: Environmental Monitoring and Assessment
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