How is the oil discharging limit specified for certain vessels?

The oil discharging limit for certain vessels is specified as being below 15 parts per million (ppm). This standard is in line with Annex I of the International Convention for the Prevention of Pollution from Ships (MARPOL). The focus of this regulation is to prevent pollution of the marine environment by controlling the discharge of oil from ships.

Under this regulation, when oil is separated from water using onboard systems such as oily water separators, the effluent discharged into the sea must not exceed 15 ppm of oil in water. This limit is critical because even small amounts of oil can have detrimental effects on marine life and ecosystems.

Meeting this requirement is essential for vessels to comply with international standards and avoid penalties during Port State Control inspections. It ensures that operational discharges from ships are regulated effectively, contributing to the protection of the marine environment. The other options, which suggest higher or no limits, do not align with the established regulations designed to safeguard against oil pollution.