Published July 7, 2023 | Version v01
Journal article Open

Data for "Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances"

Creators

  • 1. Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
  • 2. Water Research Centre, School of Civil and Environmental Engineering, UNSW Sydney, High St, Kensington, NSW 2052, Australia
  • 3. Department of Civil and Environmental Engineering, Stanford University, Stanford 94305, California, USA
  • 4. Norwegian Geotechnical Institute (NGI), NO-0806 Oslo, Norway; Department of Chemistry, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
  • 5. Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 301, 12587 Berlin, Germany

Description

Supplementary Data for publication

Lena Mutzner, Kefeng Zhang, Richard G. Luthy, Hans Peter H. Arp, Stephanie Spahr. Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances.

Data

List of 49 PMT/vPvM substances detected in urban stormwater including references

Abstract

Urban stormwater was traditionally managed for flood control and property protection. But this view is changing as urban stormwater is increasingly recognized as an underused water resource. As cities implement stormwater capture, treatment, and use practices, there is a growing need to address water quality criteria beyond traditional pollutants such as nutrients, total suspended solids, pathogens, and metals. Current use practice and regulations are lacking on the occurrence of persistent, mobile and toxic (PMT) and very persistent, very mobile (vPvM) organic substances. These substances are poorly removed in conventional stormwater treatment systems, e.g., urban blue-green infrastructure, and, thus, may pose a risk when urban runoff is used to augment drinking water sources or discharged to surface waters. We reviewed 97 stormwater monitoring studies and identified 49 PMT/vPvM substances detected in urban stormwater. Although detection does not equate with risk, this highlights the potential importance of urban stormwater as a source of PMT/vPvM substances released to water resources. There is a lack of surveillance data on PMT/vPvM substances in urban stormwater and their fate in stormwater control measures, which hinders reliable risk assessments of stormwater capture. Unified guidelines are needed to (i) monitor PMT/vPvM substances in urban stormwater runoff, (ii) assess the human and environmental risks PMT/vPvM substances may pose for urban stormwater capture and use, and (iii) establish improved stormwater management and use criteria to ensure safe stormwater capture for water supply.

 

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