Pollutant concentrations and pollution loads in stormwater runoff from different land uses in Chongqing

Analysis of the influence of rainfall variables on urban effluents concentrations and fluxes in wet weather

“…This is consistent with other studies, including Brezonik and Stadelmann (2002) who found contaminant fluxes to be positively correlated with TR and RI, but negatively correlated with DAT. Findings by Maniquiz et al (2010) from Yongin City, Korea, are consistent with these results while those by Wang et al (2013) show an opposite trend. In contrast to EMC values, conventional rainfall parameters TR and VD should be good predictors of EF values in a combined system, while for the storm sewer system, VD is the dominant variable (Table 7).…”

“…Other studies support these observations including work by Brezonik and Stadelmann (2002) in Minnesota, USA, which found EMCs to be positively correlated with DAT and negatively correlated with TR. More recently, Wang et al (2013) made similar observations for the Chongquing campus catchment area, in China. Our results are consistent with water quality monitoring results by Francey et al CSO: combined sewer overflow; RD: rainfall duration; TR: total rainfall; RI: rainfall intensity in 5 min; VD: volume discharged; DAT: dry antecedent time.…”

“…These impacts and the costs associated with collecting data on pollution caused by UWWDs have led to a growing interest in analyzing measured data in order to develops models for estimating fluxes and concentrations (Brezonik and Stadelmann, 2002;Dembélé, 2010;Mourad, 2005), including in catchment areas in which relevant data are not monitored. Published mass balance studies are generally carried out at the annual scale (Sabin et al, 2005;Wang et al, 2013) and, although studies at the event scale serve to highlight variations in inputs from different sources over time, such studies are relatively rare (Dembélé, 2010). Comprehensive studies are therefore needed prior to investing in treatment facilities and setting out land use guidelines aimed at reducing the potential impacts of human activities on the spatial and temporal evolution of UWWDs.…”

Application of BMP to urban runoff control using SUSTAIN model: Case study in an industrial area

“…EMCs of various pollutants in surface runoff are shown in (Ballo et al, 2009;Che et al, 2003;Gromaire-Mertz et al, 1999;Li et al, 2007;Ren et al, 2008;Wang et al, 2013). For road runoff, EMCs of COD and TSS in the present study were 2-3 times higher than those in Beijing, Paris, and a German city.…”

Characterization and Modeling of Urban Water Quality in the City of Calgary, Canada

“…An urban setting always composes of different land use types to accommodate various anthropogenic activities. Stormwater runoff from different types of land use has been shown to have little to no similarity in terms of pollutant concentrations [6] [7] [8]. In addition, reference [9] stated that urban stormwater from catchments with similar land use type and percentage of impervious area also shows large variations in pollutant concentrations.…”