Pollutants in stormwater in Pretoria, South Africa are harmful to water bodies. The study looked at common pollutants in stormwater and their connection to total suspended solids. Metals in stormwater are closely linked to total suspended solids. Treating or removing solids could help improve stormwater quality by also addressing heavy metals and nutrients. Some contaminants in stormwater are linked to traffic volume. Efforts are needed to redesign vehicles to reduce traffic contaminants in stormwater.