A chemistry mistake in an advertising campaign for the picturesque town of Konstanz recently sent posters around the country that present the pristine Lake Constance as full of the poisonous substance formaldehyde.
The campaign, designed to promote the pristine image of Konstanz, has embarrassed the town marketing team this week after a chemist noticed the chemical symbol for formaldehyde had been mistaken for that of water.
Posters suggested the famous Lake Constance, known as the Bodensee in German, was full of the poisonous and carcinogenic substance, news magazine Der Spiegel reported on Thursday.
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