Seasonal and interannual variation of dissolved iodine speciation at a coastal Antarctic site

first_imgDissolved iodine speciation in surface seawater at a coastal Antarctic site has been studied over a period spanning three austral summers. The sampling site is biologically productive, with a summertime algal bloom accompanying strong seasonal variations in physical and chemical parameters. The results suggest a seasonal cycle in which iodide concentrations increase and iodate concentrations decrease during the summer, though the magnitude of these changes appears to be subject to considerable interannual variability. Iodide concentrations were typically very low, with minimum values of 10 to 20 nM at the beginning and end of the ice-free summer periods and summertime maxima of about 35 nM in 2005/06, 150 nM in 2006/07 and 82 nM in 2007/08. More detailed observations of iodide and iodate concentrations made during summer 2005/06 demonstrated that the accumulation of iodide was strongly correlated with integrated biological primary productivity, with an implied I/C assimilation ratio of 1.6 × 10−4.last_img read more

New chilled cabinet

first_imgThe ISA Dialog multi-deck chilled cabinet is a new collection featuring the latest refrigeration technology and energy efficiency characteristics. The latest addition to the ISA One range includes multi-decks, serve-overs, impulse and island display cases which fit convenience stores, independent retailers, butchers, supermarkets and forecourts.Dialog is an integral plug-in multi-deck, available in four lengths – 1m, 1.3m, 1.9m and 2.5m – or multiples of these to create continuous runs. There are standard colour matches for the external trim while the internal finish is silver. The 450mm deep shelves provide a large display capacity in the smallest possible footprint. The shelves and brackets are low profile, minimising their visual impact.last_img read more

Police investigating Johnson City weekend fire

first_imgJOHNSON CITY (WBNG) — Johnson City Fire officials say a house fire at 81 West St. took about 20 minutes to put out Saturday evening. The fire department says crews arrived to the scene and found flames coming out from the second floor window. They also found “heavy smoke and flames” inside the building. They say Johnson City Police and state police are assisting with an investigation into the fire.center_img They say no other details are available.last_img