With the world gone a bit mad, it’s hard to remember it was only a couple of months ago we were up at Port Pirie sampling sediments and seagrass wrack for Nasrin’s Honours project. She’s testing how well XRF (X-ray fluorescence) works as a technique to measure metal contamination in sediments and organic matter like wrack – which has the potential to make mapping of contamination much quicker (and cheaper) than the usual analytical techniques. Looking promising so far, with some interesting results coming through.

If nothing else, the photos are a reminder of the change in seasons – was about 35°C the day we were wandering around the mudflats south of Weerona Island. Today the maximum in Adelaide has been struggling to hit 15°C.