In this edition:
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News From the Deane |
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Contamination of Environmental Systems |
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Brian Gulson is also on the lead trail... Brian Gulson of GSE has been asked by the WA Department of Conservation and Environment to assist in identifying the source of lead in 4,000+ bird kills in Esperance in WA. |
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Opportunities |
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Events |
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Snippets | |
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Science News Archive | |
News from the Dean |
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Dear Colleagues A relatively quiet week except for graduations and prize giving's - ours yet to come. However, some opportunities and interesting information has come our way.
Finally, thank you to everyone who got their RQF information in and to the Division staff for getting it all organised. Till next week Liz |
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Contamination of environmental systems with soil, sediment and water-associated heavy metal - exposure and risk to the urban population of Mount Isa, Queensland, AustraliaMark Taylor has been working with his research team (Dr Karen Hudson-Edwards, UCL Birkbeck, University of London; Tabitha Kuypers, Alan Mackay) on research at Mount Isa since 2001. His work examines the storage, transfer and cycling of heavy metals within water, soil and sediment systems in and around Mount Isa. The geography of Mount Isa particularly interesting: Mt Isa Mine is a major Pb-Zn-Cu mine and lies immediately adjacent to City's population of ~23,000. The ephemeral flowing Leichhardt River bisects the City and the Mine and drains downstream to Lake Moondarra where the City's water is captured and stored. Some 200 soil and sediment analyses of the river system and the urban area reveal that in many cases metal values grossly exceed safe guideline values as set by the Australian Government for ecological health and resident housing guidelines. My samples have been analysed primarily for Cd, Cu, Pb and Zn and have covered the standard < 2mm grain size fraction but also the < 180 micron fraction. This smaller fraction has been analysed because of the known relationship between increased heavy metal concentration values with decreasing grain size and the impact that dust fraction have on human health. My research teams analysis of contemporary sediments from the Leichhardt River and floodplain and the draining the mine reveal that coarse- (< 2mm) and fine-grained (<180 m m) sediment stored associated near channel floodplain and cut riverbank environments and is continuing to contaminate the downstream water and sediment system. We have also found similar problems within the urban area of Mount Isa, particularly close to the mine. In addtiion, we have also examined the relationship between bedrock geology and metals and found that while there is some intersection between mineralized bedrock, about 50 % of the samples exceed National Environmental Protection Council (NEPC) (1999) Health Investigation Levels (HILs) guidelines for Standard Residential Housing Local. We have purposefully compared our results to the <180 m m fraction given the greater risk of uptake from these sediments sizes. We note that NEPC guidelines use the < 2mm fraction for their comparative study but residents but these fraction are (1) less likely to be contaminated due their quartz content and (2) are less likely to be absorbed by the body. However, they do not adequately describe the environmental health problems associated with metals with finer sediment fractions found within gardens, houses, carpets, furniture and the like. Thus, our research has shown that as result of elevated heavy metals in the environment, there is a potential risk that residents of Mount Isa may be exposed to potentially harmful doses of heavy metals either via to range of pathways: indigenous communities recreating in the contaminated river bed; swimming in contaminated ephemeral pools; consumption of contaminated fish caught in Lake Moondarra and inadvertent ingestation of metals within the urban residential areas. Presently, there is a paucity of knowledge or Government advice relating to these potential hazards. Queensland Health is undertaking a Pb-blood study to determine the impact of environmental Pb on children (1-4) and results thus far from ~180 children trest indicates that around 10 % have Pb-lead levels elevated above WHO guidelines (10 ug/dL). Our recent results submitted for publication in Environmental Pollution and the 5th Australian Stream Management Conference discusses the spatial and temporal distribution of sediment and water-associated heavy metals and evaluates the risks they may pose to the environmental and population of Mount Isa. |
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_________________________________________________________ Brian Gulson trying to identify the lead source of mass bird kills in WAFurther proof that lead is not dead.... |
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Opportunities |
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Great News From the Library... The Library has purchased access to the following online resources for 2007 which will be of interest to ELS staff and students. Journals Open Access Journals Open Access journals, such as those listed in the Directory of Open Journals (www.doaj.org), PubMed Central (http://www.pubmedcentral.nih.gov/), and SciELO (www.scielo.br) have been added to the Library catalogue. Oxford University Press The Science Journals Digital Archive has been purchased, which allows access to journals such as Annals of Botany , Glycobiology and Journal of Petrology back to the first issue. Royal Society of Chemistry The Library's subscription now provides access to all RSC publications, including Natural Products Update and Natural Products Reports . ScienceDirect The Library has purchased the Agricultural and Biological Science backfile and the Immunology and Microbiology backfile. This means you can now access journals such as Experimental Mycology , Forest Ecology and Management , and Landscape and Urban Planning back to their first issue. Wiley The following backfiles of Wiley journals have been added to the Library's collection, providing access back to the first issue:
Reference material Blackwell Reference Online Provides access to reference works in disciplines such as Geography, Life and Physical Sciences, Medicine, and Museum Studies. Encyclopaedias Online versions of the following encyclopaedias have been purchased:
These new encyclopaedias can be accessed by searching the Library's catalogue. Watch this space for other new purchases which will be announced shortly. If you have any questions about these new purchases or would like to recommend new titles that the Library should consider purchasing, please contact either Karen Marks at karen.marks@library.mq.edu.au, x9009 or Andrew Spencer andrew.spencer@library.mq.edu.au, x7535. Scopus trial The Library has established another trial of the Scopus database. The trial will run until 24 th May 2007. Access to the database is available through the Library's databases page or at www.scopus.com. We are particularly interested in how you use this database for your research, and if it could be useful as part of the RQF. Please forward any comments or feedback about Scopus to either Andrew Spencer at andrew.spencer@library.mq.edu.au, x7535 or Karen Marks at karen.marks@library.mq.edu.au, x9009. _________________________________________________________
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Events |
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_________________________________________________________ Physical Geography Seminar - One for the diary Presenter: Dr Kevin Cheung Abstract: _________________________________________________________ Beautiful Minds…100 years of Nobel creativity comes to Sydney 18 April The exhibition, which was launched from the Nobel Museum in Stockholm, Sweden on the centenary of the Nobel Prize in 2001, has been travelling the world on a 15-city tour. The University of Technology, Sydney, is its only Australian destination. The exhibition will be held from April 18 to June 30. Beautiful Minds …100 years of Nobel creativity focuses on the history of the Nobel Prize, its categories, and the concept of creativity through original artefacts. On exhibit are unique displays and films about the geniuses who have been awarded the Nobel Prize, the Nobel system and the man who made the prize possible, Alfred Nobel (the inventor of dynamite). An extensive lecture and special events program, including an educational schools program, will accompany the exhibition, featuring many distinguished Nobel Laureates. Confirmed Nobel Laureate speakers include: J.M Coetzee (Literature, 2003), Robert Engle (Economics, 2003), Sir James Mirrlees (Economics, 1996) and Peter Doherty (Medicine, 1996), plus a lecture from the director of the Nobel Museum, Svante Lindquist. Information on the exhibition can be obtained by visiting the web site at www.nobel.uts.edu.au
_________________________________________________________ Department of Chemistry and Biomolecular Sciences Seminar Professor Ewa Goldys, Department of Physics, Macquarie University. Where and When? For further information, contact: _________________________________________________________ ELS Seminar Series Departments in ELS host seminars covering a wide range of topics associated with ongoing research projects and other areas of interest. The seminars are delivered by academics, research staff, and students from within the Division, as well as guest speakers from other institutions and industry. Details of times, dates, locations and topics of seminars to be held over the next few weeks are listed here.
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SnippetsAussies stop smoking, keep drinking NZ glacier will melt Solar car smashes world record Cannabis gives stroke patients hope
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