Erik J. Joner
Head of Department/Head of Research
Biography
Abstract
No abstract has been registered
Abstract
We investigated dissipation, earthworm and plant accumulation of organic contaminants in soil amended with three types of sewage sludge in the presence and absence of plants. After 3 months, soil, plants and earthworms were analyzed for their content of organic contaminants. The results showed that the presence of plant roots did not affect dissipation rates, except for galaxolide. Transfer of galaxolide and triclosan to earthworms was significant, with transfer factors of 10–60 for galaxolide and 140–620 for triclosan in the presence of plants. In the absence of plants, transfer factors were 2–9 times higher. The reduced transfer to worms in the presence of plants was most likely due to roots serving as an alternative food source. Nonylphenol monoethoxylate rapidly dissipated in soil, but initial exposure resulted in uptake in worms, which was detected even 3 months after sewage sludge application. These values were higher than the soil concentration at the start of the exposure period. This indicates that a chemical's short half-life in soil is no guarantee that it poses a minimal environmental risk, as even short-term exposure may cause bioaccumulation and risks for chronic or even transgenerational effects.
Authors
Nanna B. Svenningsen Stephanie J Watts-Williams Erik J. Joner Fabio Battini Aikaterini Efthymiou Carla Cruz-Paredes Ole Nybroe Iver JakobsenAbstract
No abstract has been registered
Authors
Erik J. JonerAbstract
No abstract has been registered
Authors
Gunhild Bødtker Claire Coutris Eva Marie-Louise Denison Barbara Alexandra Bukhvalova Åsa Frostegård Erik J. Joner Bjørn Tore Lunestad Kaare Magne Nielsen Pål Trosvik Siamak Pour Yazdankhah Elisabeth Henie MadslienAbstract
Etterspørselen etter bionedbrytbar plast øker, men vi vet for lite om hvordan den brytes ned, hvor raskt det skjer og hvilke konsekvenser det har for miljøet. Nå har Vitenskapskomiteen for mat og miljø (VKM) kartlagt hvilken vitenskapelig litteratur som finnes.
Abstract
Sammen med et ekspertpanel gir Torkild Jemterud deg svar på alt du ikke visste du ville vite: Hvorfor redde jorda når sola vil sluke oss? Har livet oppstått flere ganger? Hvordan påvirker insektdøden oss helt konkret? Hvordan lager spekkhoggere hatter av laks? I dagens panel paleontolog Lene Liebe Delsett, jordforsker Erik Joner og geolog Ingrid Anell
