Fight against pollutants like chemicals and wastewater in the rainwater drain: Fish are found dead on the road
DR-Inland in Denmark
Wednesday, October 29, 2025 • 6:48 PM UTC - in Denmark
Inside the kamp against pollution and runoff in the sewer system: Blue fish burned on the road
A burned blue fish in the asphalt is intended to make people think about what they are pouring into the sewer. Experiences are positive
The image of this blue fish is from Bremdal in Struer Municipality, (Photo: © Amanda Munksgaard) 3 minutes ago
If you pour half a can of paint into the sewer or wash your station car on the driveway, the pollutants and soap water end up directly in the necks of innocent fish and other animals in the nearest water stream, lake, or fjord.
Were you aware of this?
You will be made aware of this in several places both indoors and outdoors, where figures of blue fish are burned into the asphalt next to the sewer grate.
And it works, says Benny Nielsen from Herning Water, who has burned 260 blue fish into the asphalt in the town of Haderup:
We started in 2018 with setting fish. We have tested whether it works and whether our message comes across ... and it does.
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Blue fish prick conscience
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The blue fish are intended to be the good conscience that nudges on the asphalt next to the sewer grate - before one does something stupid and harmful to the environment:
- One should never pour waste or toxic substances into the sewer. The blue fish should remind you that it flows directly into lakes, streams, and waterways. In other words, into the nature where some people fish, and others swim, and where animals live. It is not a smart idea, he says.
- Road runoff is for water from the roads and not for polluted water from construction or car washing, says Emil Hoffgaard, who is an environmental worker in Struer Municipality.
In Bremdal just north of Struer, they are about to burn blue fish into the asphalt with the same goal as their colleagues in Herning:
- People should think about the fact that algae from roofs or soap from car washing end up in the fjord, and that is just not very good, says Tim Pindstofte from Venstre, who is chairman of the Technical, Environmental, and Climate Committee in Struer Municipality.
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Bilvask Nej Tak!
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He is backed up by environmental worker Emil Hoffgaard from Struer Municipality, who is out to set fish on the asphalt in Pipkvarteret in Bremdal.
- Road runoff is designed for water from the roads - that is, clean rainwater, which can be directed directly into the fjord. Most places in Denmark have separate sewers. A system for rainwater and another for runoff. The problem is, if we pour chemicals into it or wash cars on the road, it comes completely unfiltered out into the nearest water stream or fjord, he says.
They have thought about setting 100 blue fish out in Bremdal ... or exactly into the asphalt.
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