September 11, 2008 / 5:12 PM / 10 years ago

Fish and swimmers thrive in cleaner Danube

VIENNA (Reuters) - Swimmers can enjoy most parts of the Danube and diners can savor its fish after a major cleanup, but Europe’s second-longest river still suffers serious pollution near some major cities, a report showed on Thursday.

Serb swimmers jump into the cold water of the Danube river in an attempt to retrieve a wooden cross during Epiphany celebrations in Belgrade January 19, 2007. REUTERS/Marko Djurica

Flowing some 2,850 km (1,770 miles) from Germany’s Black Forest to the Black Sea off Romania, the Danube has shown good overall improvement since 2001, said the report by the International Commission for the Protection of the Danube River (ICPDR).

It said plants were flourishing in previously polluted flood plains near Vienna and in the Danube delta, while swimmers could take to its waters between major cities. But dirty waters still prevailed in Budapest, Belgrade and Bucharest.

“It’s best to swim away from the big centers with over one million people,” said Igor Liskea, who managed the ICPDR report.

“In Vienna, you wouldn’t die if you swam in it, you wouldn’t get very ill, but it’s not advisable.” Germany and Austria have been especially good at keeping the waters clear, he said.

Waste-water treatment projects and the phasing out of certain industrial chemicals had helped improve water quality.

But because such projects are slow and costly, they can take a long time to have an impact and must be accelerated in polluted areas to save plant and animal life, Liskea added.

The second-longest European river after the Volga in Russia, the Danube flows through four national capitals — more than any other in the world — and is the source of drinking water for millions of Europeans.

The Danube, which became badly polluted in the mid 20th century, was also the inspiration for the famous waltz composed by Austrian Johann Strauss as he was traveling downriver - “An der schoenen, blauen Donau” (On the Beautiful Blue Danube).

Reporting by Sylvia Westall, editing by Mark Trevelyan

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