Risk assessment of bilge water discharges in two Baltic shipping lanes
| Autor: | Lasse Johansson, Jukka-Pekka Jalkanen, Hulda Winnes, Paul Telemo, Vytautas Smailys, Kerstin Magnusson |
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| Rok vydání: | 2018 |
| Předmět: |
Baltic States
geography Toxicity data geography.geographical_feature_category 010504 meteorology & atmospheric sciences Oceans and Seas Environmental engineering Wastewater 010501 environmental sciences Aquatic Science Contamination Oceanography Risk Assessment 01 natural sciences Pollution Petroleum Baltic sea Metals Spring (hydrology) Environmental science Bilge Ships Water Pollutants Chemical Environmental Monitoring 0105 earth and related environmental sciences |
| Zdroj: | Marine Pollution Bulletin. 126:575-584 |
| ISSN: | 0025-326X |
| DOI: | 10.1016/j.marpolbul.2017.09.035 |
| Popis: | Environmental concentrations and effects of bilge water contaminants in two Baltic Sea areas were estimated from modelling of discharge rates and analytical data on bilge water from seven ships. Biodegradation of bilge water oil was accounted for and annual water concentrations were estimated to peak in late spring, which coincides with the beginning of a period with extensive biological activities in the sea. Concentrations on bilge water metals were calculated both as water concentrations and as the annual contribution of metals to sediments. The predicted bilge water concentrations of oil and metal in the marine environment were estimated to be 4 to 8 orders of magnitude lower than reported toxic concentrations. However, available toxicity data are based on short term exposure and there is to date limited information on toxic effects of the small but chronically elevated contaminant concentrations derived from bilge water discharge and other operational shipping activities. |
| Databáze: | OpenAIRE |
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