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

▶

Dec 02, 2022 418 likes •528 views

H ints from the DAI M ON project M .Sc. M ICHA CZUB | Institute of Oceanology, Polish Academy of Sciences ACEK BE DOWSKI Prof. J HELCOM SUBM ERGED 04.05.2018 Munition Status Examination Modelling of possible release Pollution of

SLIDE 1

H ints from the DAI M ON project

M .Sc. M ICHAŁ CZUB | Institute of Oceanology, Polish Academy of Sciences

Prof. J

ACEK BEŁDOWSKI HELCOM SUBM ERGED 04.05.2018

SLIDE 2

Munition Status Examination Modelling of possible release Pollution of sediments and water Impact on biota assessment Risk categorization procedure

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 Gdańsk Deep – CW, Gulf of Finland – Explosives EQUIPMENT ROV – Remotely Operated Vehicle, AUV - Autonomous Underwater Vehicle (+ magnetometer), SSS - Side Scan Sonar

Progress in bottom mapping

SLIDE 3

H abitat description CW A Dumpsites

Bornholm Deep Gotland Deep Gdańsk Deep

CW Dumpsites 70m depth Hypoxic zones in 2012 Anoxic zones in 2012

50 100 250 km

100 km 25 50 Baltic Sea

SLIDE 4

Bornholm Deep

Blablabla

+ corrosion studies + passive samplers

Kolberger H eide

+ caging experiments + biomarkers research

SLIDE 5

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.

SLIDE 6

Passive samplers

March – April 2018 (approx., 28 days)

Daphnia magna

Phenyldichlorarsine– Pfiffikus – 50% – LC50 = 125 µg∙dm⁻³ Diphenylchlorarsine – Clark I – 35% – LC50 = 38,2 µg∙dm⁻³ ± 1,507 Triphenylarsine– TPA – 5% – NOEC = 4 mg∙dm⁻³ (max. solubility) Arsine trichloride– 5% – LC50 = 10 mg∙dm⁻³ Arsine oil – LC50 = 110 µg∙dm⁻³ (35% ∙ 110 = 38,5 µg∙dm⁻³ ) Lewisite A, B, C – LC50 = 11,731 µg∙dm⁻³ Adamsite – LC50 = 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 AsCl3 is potentially harmful.

Toxicity studies

SLIDE 7

Fish studies DSS – Decision Supporting System

https:/ / shared.egeos.de/ amucad/ english/ #g=1&p=map

SLIDE 8

Blimp Next DAI M ON meeting

Klajpeda / Lithuania: 26.09.2018 – 28.09.2018

SLIDE 9