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Asked by Luce





Is the green fluid a danger for the environment ?





We wonder if the fluorescent green fluid in front of the Baltic coast contains any chemical components that could be dangerous to the flora and fauna of the natural environment. On the Internet, we learn that the Baltic Sea is one of the most under threat: according to the BBC and the WWF.


Approach:



1. I walked the length of the coast: 5 miles. The sand was coarse and the beach was well kept, the rubbish didn't contain anything alarming. There was no trace of extreme pollution except for some plastic bags (less than five). Two bird carcasses were laying on the ground. A strong wind and some beautiful black pebbles of a chalky consistency.








2. I have explored the seabed, where the fluid appears to be. Clear water, algae, some fish, and seagulls. The temperature is cold, nothing surprising. There are no containers lying at the bottom of the water.




3. I took a sample of water and a second sample of sand, and I sent them to Sam Ramakers, who is a remediation expert based in Antwerpen, Belgium.






Sam Ramaker is filmed by my friend Sabbo Verleye.



Sam Ramakers's results:






"Here you have some data of the analysis we did at GRC on the samples you send us. Lets start with the sand.

In the graph attached you can find the concentration of some chemical elements I could measure with that 'gun' in the sample compared to the concentration levels that are allowed according to the Belgian Environmental Legislation. In other words when these concentrations are surpassed the soil is considered dirty and needs to be cleaned. As you can see the sample is very clean. From the test with the oven we could see that there was little as almost no organic material in the sample. We found that of the total mass of the sample only 0,89% was organic.

For the water we did two simple tests to see how much organic products were present and how many nitrous was present. The concentration of all organic products was 12 mg/L. This was more than I expected but no indication of real contamination. For example our company can go up to 150 mg/L to dump in the environment so 12 mg/L is quite safe. For nitrous products we didnt find any concentration so that's also good.

In general you can say it were quite clean samples. You surely wont die of swimming in the sea there. I would suggest not drinking it though as it is probably way too salty. But even in small proportions it's quite harmless."


Everything is ok.