Hazardous and Noxious Substances Spill Incidents

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On this database it is collected information on the fate and weathering of hazardous and noxious substances (HNS) accidentally spilt at the sea around the world. It gathers and systematizes existing information to assist stakeholders involved in spill preparedness and response, and builds return of experience datasheets for the chemicals involved. It will facilitate the incorporation of lessons from past incidents on the decision process to improve preparedness.

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Herald of Free Enterprise

1987

Belgium

Europe

Packaged

HNS Spilt

Tribasic lead sulphateSolid

Pb4O3(SO4)

Amount Spilt (T)19.9

CAS Number12202-17-4

-

Physical Behaviour (SEBC code)

-

Pollution Category (MARPOL Annex 2)

8

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)

Fate and weathering facts observed/reported

19.9 tonnes of tribasic lead sulphate + 5.5 tonnes of toluene di-isocyanate + 7.8 tonnes of paint wastes + 5 tonnes of hydroquinone + 5 tonnes of leather paint + 400 kg of diluted cyanide solutions + 260 kg of liquefied and pressurized gases (aprox. half of the cargo was recovered). Firstly, a simplified scenario was used to quickly determine the extent of the sea area in which concentrations considered lethal for marine organisms could be reached. Then, environmental monitoring was performed in order to ensure the safety of personnel involved in operations and also to assess the extent and impact of a possible spill in the marine environment. Refloating the ferry took 52 days and represented a major technical achievement. Although only half of the dangerous cargo was recovered, environmental damage was kept to a minimum.

Toluene diisocyanateLiquid

C9H6N2O2

Amount Spilt (T)5.5

CAS Number584-84-9

S

Physical Behaviour (SEBC code)

Y

Pollution Category (MARPOL Annex 2)

6.1

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)

Material Safety Data Sheets (MSDS)

http://www.sciencelab.com/msds.php?msdsId=9925283

HydroquinoneSolid

C6H4(OH)2

Amount Spilt (T)5

CAS Number123-31-9

-

Physical Behaviour (SEBC code)

-

Pollution Category (MARPOL Annex 2)

6.1

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)

Material Safety Data Sheets (MSDS)

https://www.sciencelab.com/msds.php?msdsId=9927544

Paint wastes, leather paint, cyanide solutions, liquified and pressurized gasesLiquid

-

Amount Spilt (T)0.665

CAS Number-

-

Physical Behaviour (SEBC code)

-

Pollution Category (MARPOL Annex 2)

-

Class according to IMDG code

-

Subsidiary Risk Class according to IMDG code

Classification as Marine Pollutant

iv

HNS Classification (2010 HNS Convention)