Maritime traffic is seen as major contributor to air pollution

Maritime traffic has been found to be a major source of air pollution. Ships sailing in Finnish territorial waters account for up to 96% of the sulphur emissions from transport, and for almost half of the nitrogen emissions in this branch. Ships' smokestacks put nearly 72,000 tonnes of nitrogen oxides and over 19,000 tonnes of sulphur dioxide into the air while sailing in Finnish waters in 2003 ......
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