Pandemonium, Göteborg International Biennial for Contemporary Art , Sweden. 10. September - 13. November 2011
Survivors of the Water World - measuring pollution by sound in the River Göta Elv.
Akerselva, the river running through Oslo, was recently polluted with 6000 litres of chlorine by the council waterworks. All life was erased/killed. There will be no sound made by living creatures in the river for a long time.
By listening with very sensitive hydrophones I suggest you can measure pollution levels in a river. Certain insects can survive certain pollutants, different types of insects and other invertebrates have different tolerances to pollution and they make different sounds. If an organic pollutant is present bacteria will be in abundance and will consume the oxygen in the river. First, the more sensitive invertebrates and fish will die later and so also the more tolerant fresh water shrimp, blood worms or spices like rat-tailed bloodworms. If high concentrations of inorganic pollution such as the chlorine spill in Oslo is poured into to the river, all life will die immediately.