Hints from the DAIMON project

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

Prof. JACEK BEŁDOWSKI

HELCOM SUBMERGED 04.05.2018

Munition Status Examination

Modelling of possible release

Pollution of sediments and water

Impact on biota assessment

Risk categorization procedure

PILOTSTUDIES

S/YOceania,R/VWaltherHerwigIII,R/VAranda

SURVEYS

S/YOceania,R/VImor,R/VWaltherHerwigIII,R/VLittorina,R/VAranda,R/VAkademik NikolayStrakhov

MAINAREASOFINTEREST

BornholmDeep– CWdumpsite | Kolberger Heide - Explosivesdumpsite | Skagerrak - Wrecks

ADDITIONALAREASOFINTEREST

Gdańsk Deep– CW,GulfofFinland– Explosives

EQUIPMENT

ROV– RemotelyOperatedVehicle,AUV - AutonomousUnderwaterVehicle(+magnetometer),SSS - SideScanSonar

Progress in bottom mapping

Habitat description

CWA Dumpsites

BornholmDeep

GotlandDeep

GdańskDeep

CWDumpsites

70mdepth

Hypoxiczonesin2012

Anoxiczonesin2012

50 100 250km

0 100km25 50

Balti

cSea

Bornholm Deep

Blablabla+ corrosion studies

+ passive samplers

Kolberger Heide

+ caging experiments

+ biomarkers research

Skagerrak

+ NEMO – ocean model

+ VRAKA model

+ bioaccummulation

CWA detection in sediments + High Res. Model

Initial state and situation after about ~100 seconds of estimated potential leakage.Horizontal and vertical axes represent distance in relative units. Color scale can beinterpreted as the level of contamination.

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

Fish studies

DSS – Decision Supporting System

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

Blimp

Next DAIMON meeting

Klajpeda / Lithuania: 26.09.2018 – 28.09.2018

Thank you.