For the purposes of this Annex, substances identified by any one of the following criteria are harmful substances:
- | bioaccumulated to a significant extent and known to produce a hazard to aquatic life or to human health (Hazard Rating '+' in column A1); or |
- | bioaccumulated with attendant risk to aquatic organisms or to human health with a short retention of the order of one week or less (Hazard Rating 'Z' in column A28)2; or |
- | liable to produce tainting of seafood (Hazard Rating 'T' in column A3); or |
- | highly toxic to aquatic life, defined by a LC50/964 hour less than 1 ppm (Hazard Rating '4' in column B5). |
1 | Reference is made to the Composite List of Hazard Profiles, prepared by the IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP), which is circulated annually by the Organization by means of BCH circulars to all IMO Member States. |
2 | Reference is made to the Composite List of Hazard Profiles, prepared by the IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP), which is circulated annually by the Organization by means of BCH circulars to all IMO Member States. |
3 | Reference is made to the Composite List of Hazard Profiles, prepared by the IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP), which is circulated annually by the Organization by means of BCH circulars to all IMO Member States. |
4 | The concentration of a substance which will, within the specified time (generally 96 hours), kill 50% of the exposed group of test organisms. LC50 is often specified in mg/l (parts per million (ppm)). |
5 | Reference is made to the Composite List of Hazard Profiles, prepared by the IMO/FAO/UNESCO/WMO/WHO/IAEA/UN/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP), which is circulated annually by the Organization by means of BCH circulars to all IMO Member States. |