70 results for “Anthropogenic”

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InvestigationOpen accessIn the abstractRecovered Gases and Bacteria from the Clostridium Genus as Ecological Condition Indicators of Bottom Sediments of the Eastern Donbass Small RiversRoman Gennad'yevich Trubnik, Yuriy Aleksandrovich Fedorov, Ludmila Anatol'yevna NedosekaThe results of determination of methane, total hydrogen sulfide and sulfite reducing clostridia in bottom sediments of small rivers and reservoirs of the Eastern Donbass are presented. The horizontal and vertical distribution of levels of reduced gases in bottom sediments is analyzed. The ecological condition of the bottom sediments was estimated by the clostridia titer and the methane index. The … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 27 Jul 2017 · 7,105 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSeasonal Variation of Heavy Metal Concentrations in Farm Soils of Sreepur Industrial Area of Gazipur, Bangladesh: Pollution Level AssessmentMd. Billal Hossain, Md. Nurul Islam, Mohammad Shamsul Alam, Md. Zakir HossenA study was conducted to measure the seasonal variation of different heavy metal contents in farm soils of Sreepur Upazila of Gazipur district and to assess their pollution level. Industrial affected and non-affected soil samples were collected from 5 locations in three seasons viz. pre-monsoon (April), monsoon (August), and dry season (January), thus a total of 30 soil samples were … …American Journal of Environmental Sciences, Vol. 16, Issue 4 · 6 Aug 2020 · 7,418 accessesView PDF Cite

Research ArticleOpen accessIn the abstractUse of 137Cs Activity to Investigate Sediment Movement and Transport Modeling in River Coastal EnvironmentM. E. Toriman, Muhamad Barzani Gasim, Zulkifli Yusop et al.Conflicts between human and environment always triggered to sedimentation and erosion problems within the coastal areas, Therefore understanding sediment transport processes in a river estuary and coastal waters was important when studying sediment transport and mobility within the river coastal environment. This article aims to investigate the sediment transport and mobility of the Kemaman River estuary, Terengganu Malaysia. In this … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 22 Jun 2012 · 7,767 accessesView PDF Cite

Research ArticleOpen accessIn the abstractRare Earth Elements and Geochemical Partitioning of Zn and Pb in Sediments of an Urban RiverShaila Sharmin, H. M. Zakir, Naotatsu ShikazonoProblem statement: Urban river sediment pollution due to Zn and Pb is a serious problem in all over the world. The source and level of Zn and Pb pollution in sediments of Nomi River of Ota Ward, one of the most industrialized areas in Tokyo, Japan is still lacking. Approach: The present study focused on Rare Earth Elements (REEs) and … …American Journal of Environmental Sciences, Vol. 6, Issue 5 · 31 Oct 2010 · 6,969 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAn Assessment of Metals (Pb and Cu) Contamination in Bottom Sediment from South China Sea Coastal Waters, MalaysiaM. C. Ong, B. Y. KamaruzzamanProblem statement: The accumulation of metal contaminants in sediments can pose serious environmental problems to the surrounding areas. Trace metal contamination in sediment could affect the water quality and the bio-assimilation and bioaccumulation of metals in aquatic organisms, resulting in potential long-term implications on human health and ecosystem. Approach: About 154 bottom sediment samples were collected using Smith McIntyre in … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,995 accessesView PDF Cite

Research ArticleOpen accessIn the abstractReduction of Microbial Contamination of Outlet Waste in Urban Wastewater Treatment PlantsSona Pazdar, Saeid Eslamian, Hossein Gholami, Kaveh Ostad-Ali-AskariThe available research was managed to monitor the physicochemical and microbiological features of treatment plants. The wastewater treatment herb sewage is a straight pollution input source for anthropogenic pollution. The sediment information ideas to an urban drainage trench as a secondary point pollution source while the organotins information highlights the presence of other spread sources, special to this material. wastewater … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 3 · 18 Sep 2019 · 7,612 accessesView PDF Cite

Research ArticleOpen accessIn the abstractComparative Analysis of the Efficacy of Landslide Susceptibility ModelsJordan Henrique de Souza, Gislaine dos Santos, Gabriela Guimarães Gouvêa de Oliveira et al.This research aims to analyze the efficacy of SHALSTAB, IPT, SAGA, SMORPH and modified SMORPH models in evaluating landslide susceptibility. Statistical analysis concerning both the efficacy of the models in the prediction of landslide risks and the concordance between the models according to landslide occurrence or non-occurrence was performed. For this work, logistic regression, Receiver Operating Characteristic (ROC) curves, Kappa … …American Journal of Environmental Sciences, Vol. 15, Issue 3 · 31 May 2019 · 8,846 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPollution Potential Assessment of Nymphaea alba in Nigeen Basin of Dal Lake, Kashmir (J&K), IndiaHina Mushtaq, Shameem Ahmad Shameem, Mumtaz Mohd Bhat et al.The present study was conducted to investigate the biochemical attributes of Nymphaea alba (also known as the European White Water lily or Nenuphar), an annual or perennial aquatic flowering plant at three study sites viz., site I (Nagoo Mohalla, near residential area); site II (Ashaibagh-adjacent to floating gardens) and site III (Marzibagh-Nigeen boat club) in Nigeen Basin of Dal Lake, … …American Journal of Environmental Sciences, Vol. 14, Issue 2 · 8 May 2018 · 8,812 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Heavy Metals on the Enzymatic Activity of Haplic Chernozem under Model Experimental ConditionsNatalia Gromakova, Saglara Mandzhieva, Tatiana Minkina et al.The biological activity of soils is an essential parameter of their ecological status. The anthropogenic Heavy Metals (HMs) disturb the normal functioning of soil biota and, hence, the entire soil system. The aim of this work was to estimate the toxicity of loosely bound HM compounds in Haplic Chernozem using parameters of cellulose-degrading and urease activities. Contamination of Haplic Chernozem … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 23 Jul 2017 · 7,996 accessesView PDF Cite

Research ArticleOpen accessIn the abstractInteractions of Aerosol Optical Depth and Cloud Parameters with Rainfall and the Validation of Satellite Based Rainfall ObservationsMd Monirul Islam, Md Mainul Islam Mamun, Md Zahidul Islam, Mumnunul KeramatAerosol-cloud interactions influence the global precipitation patterns that influence significantly the Earth's climate system. Anthropogenic aerosols alter the clouds and their optical properties. The present study has investigated the Aerosol Optical Depth (AOD), cloud parameters and rainfall interactions for three different monsoon periods (2008-2010) and also compared the satellite rainfall with ground based observations, by using MODIS and TRMM datasets. … …American Journal of Environmental Sciences, Vol. 13, Issue 4 · 24 Jun 2017 · 7,754 accessesView PDF Cite