from the original article
Second, the measurements were not always performed at the same distance to the sewage works. They did not take the samples directly at the purification plants, where the by-product benzoylecgonine is broken down by about 80 percent, but instead examined the water after its discharge back into the river.
and the link in the article:
The analysis comes from the Institute for Biomedical and Pharmaceutical Research (IBMP) in Nuremberg. It shows that -- according to tests done near the western German city of Düsseldorf -- the 38.5 million Germans who live in the Rhine River basin snort some 11 tons of pure cocaine each year. Day after day, the chemical traces of 30 kilograms of the white lady flow from the region's commodes and into the water treatment system. The street value of that much charlie is a whopping €4.5 million per day -- or €1.64 billion per year.
do you understand why your replies make no sense to me? its all there, in the original print
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