Organotin compounds in the sediments of Greek harbours

(in micrograms per Kg)

 

Pollutant

Piraeus harbour, "Kinosoura"

Area of ship blasting in open waters (removal of TBT paints)

Broader Piraeus area, "Limnionas-Selinia"/ Salamina island

Area of low ship traffic

Piraeus harbour, "Ikonio"

Area of high ship traffic

Thessaloniki harbour, Dock 24

Area of high ship traffic

Thessaloniki, Music Hall / Posidonio

Area of low ship traffic

Monobutyltin (MBT)

272

17.2

560

30

46

Dibutyltin (DBT)

4,920

18

1,560

103

32.4

Tributyltin (TBT)

89,600

210

5,200

1.200

85

Tetrabutyltin

644

<10

70

50.2

<1

Monooctyltin

<10

<10

<10

<10

<1

Dioctyltin

<10

<10

<10

<10

<1

Tricyclohexyltin

<10

<10

<10

<10

<1

Triphenyltin

96

12

18

12

4

Analyses performed by GALAB laboratory in Germany, 14-8-2000.

Range of organotin compounds in Baltic and North Sea ports
(findings of a Greenpeace Germany study in August-September 1999)
MBT = 10-470 micrograms/Kg, DBT = 8-2,740 micrograms/Kg, TBT = 16-48,200 micrograms/Kg
Provisional limit for TBT in sediments agreed in 1997 by the OSPAR Convention = 0.005-0.05 micrograms/Kg