BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Environmental Assessment Impact of Agbara Industrial Estate: A Rev iew DTSTART;VALUE=DATE-TIME:20210915T083000Z DTEND;VALUE=DATE-TIME:20210915T084500Z DTSTAMP;VALUE=DATE-TIME:20260714T123135Z UID:indico-contribution-278-2033@indico.tlabs.ac.za DESCRIPTION:Speakers: Akinwumi Akinpelu (Department of Physics\, Covenant University\, Ota\, Ogun State\, Nigeria)\nThis review gives insights into the levels of naturally occurring radionuclides (NOR)\, radioactive parti cles of air dust\, heavy metals\, environmental pollution and related haza rds at Agbara industrial Estate\, Agbara\, Ogun State\, Nigeria. Due to ma ny industries located in Agbara industrial estates\, there is much dischar ge of gaseous effluent\, waste disposal. Industrial air dust harbours seve ral pollutants\, including heavy metals. The varying particle-size distrib ution of this dust and its large surface area makes it easier for the depo sition and transport of heavy metals. The most used equipment for determin ation of radionuclide concentration is gamma-ray spectrometry with NaI (Tl ) detector. Also\, there are various methods used for the sampling of envi ronmental pollution in dust and for heavy-metal determination which includ e: Andersen sampler filter and atomic absorption spectroscopy (AAS)\, indu ctively coupled plasma-mass spectrometry (ICP-MS)\, among others\, respect ively. Studies have shown that the pollutants in industrial areas are main ly derived from industrial activities but not a predominant source of poll ution. Risk-assessment studies have shown that metals in urban dust could cause such problems as human pulmonary toxicity and reduction of invertebr ate populations. The risk levels seem to be higher in children than adults \, as some studies have shown. It is therefore important that scattered st udies on heavy metals\, pollution and radioactivity levels in a particular location should always incorporate risk assessment as one of the main iss ues and are put together in other to know what has been done and to detect research gaps. \n\nKeywords: Radionuclides\; heavy metals\; pollution\; i ndustrial activities\; risk assessment\; toxicity\; human health\n\nhttps: //indico.tlabs.ac.za/event/92/contributions/2033/ LOCATION:https://zoom.us/j/93092215578?pwd=REhYb2J3cHh3OEFrSTZzaFFTY1hrdz0 9 URL:https://indico.tlabs.ac.za/event/92/contributions/2033/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of nuclear interactions for material analysis: A case study of determination of metal contaminants from industrial effluents in North-West Nigeria using NAA technique DTSTART;VALUE=DATE-TIME:20210915T080000Z DTEND;VALUE=DATE-TIME:20210915T083000Z DTSTAMP;VALUE=DATE-TIME:20260714T123135Z UID:indico-contribution-278-1573@indico.tlabs.ac.za DESCRIPTION:Speakers: Michael Adeleye (Bingham University)\nNeutron Activa tion Analysis (NAA)\, a non-destructive nuclear analytical technique that meets the criteria of experimental simplicity\, analytical accuracy and fl exibility has been applied to investigate the metal contents of industrial effluents collected at several sites in North-Western part of Nigeria. Te n elements (Cr\, Co\, Ca\, Na\, Eu\, Hf\, Th\, Dy\, Sb and Cs) were determ ined from 10 samples from the leather\, textile and petrochemical industri es. The enrichment factors were determined by comparison of the elemental concentration with that of a typical soil from an uninhabited\, uncultivat ed\, non-industrial area within the same locality of the survey. The analy tical result shows that some of the industrial effluents have high elevate d concentration for chromium\, calcium\, cobalt\, sodium\, antimony\, and dysprosium. The most distinct being chromium from the tanneries due to the chemical processing stage of leather products involving tanning with chro me. Certified reference material was used during the analyses as quality c ontrol to assure the analytical quality of the results. The successful app lication of this nuclear analytical technique during this study confirms i ts suitability to environmental studies and the applicability of the k0-NA A method in the Nigeria Research Reactor-1 (NIRR-1) laboratories.\n\nhttps ://indico.tlabs.ac.za/event/92/contributions/1573/ LOCATION:https://zoom.us/j/93092215578?pwd=REhYb2J3cHh3OEFrSTZzaFFTY1hrdz0 9 URL:https://indico.tlabs.ac.za/event/92/contributions/1573/ END:VEVENT BEGIN:VEVENT SUMMARY:Compton Camera Imaging for Environmental Purposes DTSTART;VALUE=DATE-TIME:20210914T080000Z DTEND;VALUE=DATE-TIME:20210914T083000Z DTSTAMP;VALUE=DATE-TIME:20260714T123135Z UID:indico-contribution-278-1572@indico.tlabs.ac.za DESCRIPTION:Speakers: Helen Boston (University of Liverpool)\nOn 11th Marc h 2011 the Fukushima Daiichi nuclear power plant suffered major damage aft er being hit by a magnitude 9 earthquake and subsequent tsunami. This resu lted in a major radionuclide release to the environment. In response to t his\, remediation of the surrounding agricultural land commenced. \n\nPar t of the scientific focus is on understanding the dynamics of 137Cs\, in t erms of plant uptake and retention in soils. Accurate quantification of a ctivities for sources whose distributions vary spatially and temporally is required.\n\nAt the University of Liverpool\, UK we have characterised th e near-field response of our Compton camera Gamma-Ray Imager (GRI) system to enable accurate estimation of 137Cs activity and its location.\n \nThe ability to precisely determine activity and distribution at small scales ( sub-cm resolution in a sub-metre phase space) is considered to have applic ations beyond studying the dynamics of radiocaesium in environmental media .\n\nAt present\, activity can be reliably estimated from the event rate f or point-like sources\, and a method to derive activity for distributed so urces from the reconstructed Compton images is in development. \n\nThe cha racterisation and validation study of the system performance will be prese nted.\n\nhttps://indico.tlabs.ac.za/event/92/contributions/1572/ LOCATION:https://zoom.us/j/99254723016?pwd=eE8vRmpNcWhhamR3QmFxdU5kR3M2QT0 9 URL:https://indico.tlabs.ac.za/event/92/contributions/1572/ END:VEVENT BEGIN:VEVENT SUMMARY:Assessment of Radiological hazards for Latrite Mining Field in Ilo rin South LGA\, North-central Nigeria DTSTART;VALUE=DATE-TIME:20210914T083000Z DTEND;VALUE=DATE-TIME:20210914T090000Z DTSTAMP;VALUE=DATE-TIME:20260714T123135Z UID:indico-contribution-278-1565@indico.tlabs.ac.za DESCRIPTION:Speakers: Mojisola Usikalu (Covenant University)\, Muyiwa Oros un (University of Ilorin)\nAssessment of activity concentrations of 40K\, 238U\, 232Th and gamma dose rate (DR) was carried out over a latrite minin g field using a well calibrated Super-Spec (RS-125) gamma spectrometer\, a long Ajese-Ipko road\, Ilorin-south\, Kwara state\, Nigeria. The results of the radioactivity measurements were used to assess the radiological haz ards associated with the latrite mining field and it’s suitability as bu ilding material. Fifty (50) measurements of the activity concentration of the radionuclides were obtained at about 1 meter above the topsoil to cove r a large area. For each of these 50 sample points\, measurements were tak en four (4) times for better accuracy. The mean activity concentrations of 238U and 232Th are higher than their corresponding global average of 32.0 0 Bqkg-1 and 30.00 Bqkg-1 respectively provided by UNSCEAR. This is a caus e for worry as significant enhancement in the concentration of 238U and 23 2Th will increase the level of the background radiation and possibly rende r the soil unfit for use in building and construction purposes. The resul ts of the radiological impact parameters (RIP) such as the mean values of the indoor radiation dose rate (Din). indoor Annual Effective Dose (EADind oor) and Annual Gonadal Equivalent Dose (AGED) are above the recommended l imits provided by UNSCEAR. Since other hazard parameters are close or coul d possibly be approximated to the permissible limit\, this implies that th e lateritic soil from this mine field may not be too suitable for building and construction purposes (either as raw material or finished product).\n \nhttps://indico.tlabs.ac.za/event/92/contributions/1565/ LOCATION:https://zoom.us/j/99254723016?pwd=eE8vRmpNcWhhamR3QmFxdU5kR3M2QT0 9 URL:https://indico.tlabs.ac.za/event/92/contributions/1565/ END:VEVENT END:VCALENDAR