Penguin guano shows problem of pollution

Penguin guano in the Antarctic is adding to organic pollutant problems there, according to a report to be featured in a Royal Society of Chemistry publication.

Unexpectedly high levels of organic pollutants were found in the soil around a colony of non-migratory Adelie penguins in the Antarctic.

Penguins are initially exposed to the contaminants by eating polluted fish, which have been contaminated through the food chain. Bioaccumulation means that the penguins have high levels of contaminants in their bodies.

The soil around the colony is then contaminated by penguin guano and carcasses.