Figure 2.

Reported and/or calculated log₁₀ reduction of FIB, bacteriophages and viral pathogens through wastewater treatment processes. Reduction data per organism type are pooled irrespective of the particular unit of operation (e.g. primary treatment, secondary treatment, disinfection). Box is delimited by 25^th and 75^th percentiles, solid line within the box represents median and dashed line represents average. Whiskers are 10^th and 90^th percentile values. Values outside of the range are depicted as filled dots. Number in parenthesis indicate number of studies* used to derive the data.

*References: (Bonadonna et al. 1993; Chauret et al. 1999; Baggi et al. 2001; Bourrouet et al. 2001; Rose et al. 2001; Tanji et al. 2002; Lucena et al. 2004; Harwood et al. 2005; Haramoto et al. 2006; Mandilara et al. 2006; Ottoson et al. 2006; Zhang and Farahbakhsh 2007; Carducci et al. 2008; Costan-Longares et al. 2008; Gomila et al. 2008; Petrinca et al. 2009; Aw and Gin 2010; Boczek et al. 2010; Fu et al. 2010; Ebdon et al. 2012; Flannery et al. 2012; Francy et al. 2012; Muniesa et al. 2012a; Hata et al. 2013; Pradhan et al. 2013; Kitajima et al. 2014; Ulbricht et al. 2014; Dias et al. 2015; Haramoto et al. 2015; Montazeri et al. 2015; Yahya et al. 2015; Mayer et al. 2016).