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Table 1 Physicochemical characteristics of pharmaceutical effluent

From: Characterization of pharmaceuticals industrial effluent using GC–MS and FT-IR analyses and defining its toxicity

ParametersRangeMean ± SEStandard permissible value
CPCB (2005)
pH5.4–5.65.6 ± 0.116.0–8.5
EC (µs cm−1)1230–18301563.34 ± 1761000
TDS (mg L−1)695–1170920.34 ± 1372100
BOD (mg L−1)5460–90007253.34 ± 1022100
COD (mg L−1)11,980–15,840756.67 ± 1124250
Heavy metal (mg L−1)
 Cu1.98–2.562.21 ± 0.193
 Co0.26–0.530.39 ± 0.08NS
 Cd0.10–0.500.27 ± 0.122
 Ni0.04–0.070.05 ± 0.013
 Pb0.58–1.20.85 ± 0.900.1
 Mn0.58–1.050.84 ± 0.142
 Cr1.47–1.511.50 ± 0.022
 Zn2.61–3.53.11 ± 0.275
 Fe1.72–2.131.90 ± 0.123
 As0.05–0.090.07 ± 0.020.2
 Hg0.003–0.0060.004 ± 0.0010.01
  1. NS not specified