Category Archives: Environmental toxicology

Subjects of interest to Investigative Chemistry or Inorganics.
Includes any environmental context (except AIR, see AIR POLLUTION AND ANALYSIS) example: soil, water, clinical matrices, heavy metals, mining wastes, oil spills, contamination, pesticides.

New Abbot Point dredge plan to dump spoils in wetlands

Brisbane Times SMH Peter Hannam October 29, 2014

The Abbott government appears poised to fast-track the approval of plans to dump millions of tonnes of dredge from a coal port expansion onto internationally significant wetlands.
Environment Minister Greg Hunt plans to assess the dumping of spoil from the proposed Abbot Point port expansion on the nearby Caley Valley wetlands under the Environmental Protection and Biodiversity Act using “preliminary documentation”.
An onshore site was needed after international uproar over the original plans, which proposed moving spoil – about 3 million tonnes in total – to a site within the World Heritage-listed Great Barrier Reef.

Australian authorities admit knowledge gaps on nanopesticides, but insist they can be properly regulated.

ABC Rural News James Bennett 29 October 2014

Australia’s current system for approving agricultural chemicals can effectively assess the safety of ‘nano’ products, the Australian Pesticides and Veterinary Medicines Authority (APVMA) says.
Nano materials are said to offer farmers major benefits like more effective, targeted use of pesticides that mean lower doses and the ability to develop better controlled-release chemicals and livestock medicines.
The APVMA’s CEO Kareena Arthy said the organisation’s existing criteria for assessing the safety of agricultural chemicals is adequate,

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Prenatal phthalate exposures and anogenital distance in Swedish boys

(Swedish Research Council 29 October 2014) The first study to examine prenatal exposure to the phthalate DiNP finds it is associated with a shorter anogenital distance (AGD) in Swedish boys at the age of 21 months. These findings raise concern since animal research has linked DiNP exposure to a shorter AGD, and studies on humans have related shorter AGD to male genital birth defects as well as impaired reproductive function in adult males, and the levels of DiNP metabolites in humans are increasing globally.

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Nanosafety research: The quest for the gold standard

(Swiss Federal Laboratories for Materials Science and Technology (EMPA) 29 October  2014) Empa toxicologist Harald Krug has lambasted his colleagues in the journal Angewandte Chemie. He evaluated several thousand studies on the risks associated with nanoparticles and discovered no end of shortcomings: poorly prepared experiments and results that don’t carry any clout. Instead of merely leveling criticism, however, Empa is also developing new standards for such experiments within an international network.

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Will holding thermal printer paper really send your bisphenol A levels soaring?

The Conversation Ian Musgrave 23 October 2014

Bisphenol A is in the news again. A paper just published in the Public Library of Science with the alarming title of “Holding Thermal Receipt Paper and Eating Food after Using Hand Sanitizer Results in High Serum Bioactive and Urine Total Levels of Bisphenol A (BPA)” is bound to ratchet up anxiety levels about this chemical yet again.

Yet this paper shows once again that being able to measure something is no guarantee that the measurement is meaningful.

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Scientists have worked out how to desalinate and reuse the wastewater from fracking

ScienceAlert Australia Neha Karl 22 October 2014

Researchers have found a cheap way to remove the salt from the wastewater produced by fracking, helping to make the practice more environmentally friendly.

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Warnings over new acid tattoo removal technique

ABC News | 7.30 Qld Allyson Horn 25 October 2014

Queensland’s chief health officer Dr Jeannette Young has warned of serious complications from acid tattoo removal and says new laws may be needed to regulate the technique.  Dr Young said she was aware there had been people who developed severe burns and scarring.

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