Stock Photo - 10 September 2019, Hamburg: View of a biological treatment plant for street waste water. It is intended to free rainwater from a radius of 40 hectares of up to nine tons of pollutants per year, which mainly consist of microplastics from the abrasion of car tyres. Photo: Markus Scholz/dpa. - Hamburg/Hamburg/Germany

Stock Photo: 10 September 2019, Hamburg: View of a biological treatment plant for street waste water. It is intended to free rainwater from a radius of 40 hectares of up to.

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