Stormwater runoff contains a broad range of micropollutants. In Europe a number of these substances are regulated through the Water Framework Directive, which establishes Environmental Quality Standards (EQSs) for surface waters. Knowledge about discharge of these substances through stormwater runoff and combined sewer overflows (CSOs) is essential to ensure compliance with the EQSs. Results from a screening campaign including more than 50 substances at four stormwater discharge locations and one CSO in Copenhagen are reported here. Heavy metal concentrations were detected at levels similar to earlier findings, e.g., with copper found at concentrations up to 13 times greater than the Danish standard for surface waters. The concentration of polyaromatic hydrocarbons (PAHs) exceeded the EQSs by factors up to 500 times for stormwater and 2,000 times for the CSO. Glyphosate was found in all samples whilst diuron, isoproturon, terbutylazine and MCPA were found only in some of the samples. Diethylhexylphthalate (DEHP) was also found at all five locations in concentrations exceeding the EQS. The results give a valuable background for designing further monitoring programmes focusing on the chemical status of surface waters in urban areas.
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Research Article|
July 01 2011
Micropollutants in stormwater runoff and combined sewer overflow in the Copenhagen area, Denmark Available to Purchase
H. Birch;
H. Birch
1Department of Environmental Engineering (DTU Environment), Technical University of Denmark, Miljøvej 113, DK-2800 Kgs. Lyngby, Denmark
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P. S. Mikkelsen;
P. S. Mikkelsen
1Department of Environmental Engineering (DTU Environment), Technical University of Denmark, Miljøvej 113, DK-2800 Kgs. Lyngby, Denmark
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J. K. Jensen;
J. K. Jensen
2DHI, Agern Allé 5, DK-2970 Hørsholm, Denmark
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H.-C. Holten Lützhøft
1Department of Environmental Engineering (DTU Environment), Technical University of Denmark, Miljøvej 113, DK-2800 Kgs. Lyngby, Denmark
E-mail: [email protected]
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Water Sci Technol (2011) 64 (2): 485–493.
Article history
Received:
January 28 2011
Accepted:
May 16 2011
Citation
H. Birch, P. S. Mikkelsen, J. K. Jensen, H.-C. Holten Lützhøft; Micropollutants in stormwater runoff and combined sewer overflow in the Copenhagen area, Denmark. Water Sci Technol 1 July 2011; 64 (2): 485–493. doi: https://doi.org/10.2166/wst.2011.687
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