HVG MARINE AUXILIARY MACHINERT 0065: Vessel BWMS
Around the world approximately 3 to 5 billion tons of ballast water is transferred via ships each year, introducing aquatic invasive species into new environment, posing serious threats to maritime ecosystems, aquatic economy and human health.
The transfer of ballast water cannot be avoided since ballast water is absolutely essential to the safe and efficient operation of modern shipping. But the transportation of non-native species can be eliminated by means of appropriate treatment of ballast water.
| Organism Type | Required Regulation |
| Organisms,≥50μm minimum dimension | <10cells/ m3 |
| Organisms, <50μm and ≥10μm minimum dimension | <10cells/ml |
| Toxicogenic Vibrio cholerae (serotypes O1 and O39) | <1cfu/100ml,or <1cfu/g(wet weight)of zooplankton samples |
| Escherichia coli | <250cfu/100ml |
| Intestinal Enterococci | <100cfu/100ml |
