H ints from the DAI M ON project M .Sc. M ICHA CZUB | Institute of - PDF document

H ints from the DAI M ON project M .Sc. M ICHA Ł CZUB | Institute of Oceanology, Polish Academy of Sciences ACEK BE Ł DOWSKI Prof. J HELCOM SUBM ERGED 04.05.2018

Munition Status Examination Modelling of possible release Pollution of sediments and water Impact on biota assessment Risk categorization procedure Progress in bottom mapping PILOT STUDIES S/ Y Oceania, R/ V Walther Herwig III, R/ V Aranda SURVEYS S/ Y Oceania, R/ V Imor, R/ V Walther Herwig III, R/ V Littorina, R/ V Aranda, R/ V Akademik Nikolay Strakhov MAIN AREAS OF INTEREST Bornholm Deep – CW dumpsite Kolberger Heide - Explosives dumpsite | | Skagerrak - Wrecks ADDITIONAL AREAS OF INTEREST Gda ń sk Deep – CW, Gulf of Finland – Explosives EQUIPMENT ROV – Remotely Operated Vehicle, AUV - Autonomous Underwater Vehicle (+ magnetometer), SSS - Side Scan Sonar

H abitat description CW A Dumpsites Baltic Sea 50 100 250 km Gotland Deep Bornholm Deep Gda ń sk Deep CW Dumpsites Hypoxic zones in 2012 100 km 70m depth 0 25 50 Anoxic zones in 2012

Bornholm Deep Blablabla + corrosion studies + passive samplers Kolberger H eide + caging experiments + biomarkers research

Skagerrak + NEM O – ocean model + VRAKA model + bioaccummulation CW A detection in sediments + H igh Res. M odel Initial state and situation after about ~100 seconds of estimated potential leakage. Horizontal and vertical axes represent distance in relative units. Color scale can be interpreted as the level of contamination.

Passive samplers March – April 2018 (approx., 28 days) Toxicity studies Daphnia magna Phenyldichlorarsine– Pfiffikus – 50% – LC 50 = 125 µg ∙ dm ⁻ ³ Diphenylchlorarsine – Clark I – 35% – LC 50 = 38,2 µg ∙ dm ⁻ ³ ± 1,507 Triphenylarsine– TPA – 5% – NOEC = 4 mg ∙ dm ⁻ ³ (max. solubility) Arsine trichloride– 5% – LC 50 = 10 mg ∙ dm ⁻ ³ Arsine oil – LC 50 = 110 µg ∙ dm ⁻ ³ (35% ∙ 110 = 38,5 µg ∙ dm ⁻ ³ ) Lewisite A, B, C – LC 50 = 11,731 µg ∙ dm ⁻ ³ Adamsite – LC 50 = 46,726 µg ∙ dm ⁻ ³ Lewisite, Clark I, Adamsite, PDCA and Arsine Oil remain very toxic when transferred into aquatic systems. TPA has no toxic effects, while AsCl 3 is potentially harmful.

Fish studies DSS – Decision Supporting System https:/ / shared.egeos.de/ amucad/ english/ #g=1&p=map

Blimp Next DAI M ON meeting Klajpeda / Lithuania: 26.09.2018 – 28.09.2018

Thank you.