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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Castillo de Salas





HNS Spilt



Amount Spilt (T)100000

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


HNS Classification (2010 HNS Convention)

Fate and weathering facts observed/reported

For many years around 30 T of wet sand contaminated with coal dust and pellets missed with fuel was taken from the closer beach Playa de San Lorenzo, one of the busiest in Gijon. Authorities contracted the removal of shop remains. An impact study by the Spanish Oceanographic Institute concluded that this particular type of coal was not dangerous for human beings or environment.

Material Safety Data Sheets (MSDS)