Chinese Journal of Biology

Research Article

Microbiological and Toxicological Assessment of Pharmaceutical Wastewater from the Lagos Megacity, Nigeria

Table 4

Inhibitory spectrum of bacterial isolates from pharmaceutical wastewater.
Indicator species/isolateME1ME2ME3ME4ME5ME6ME7
Gram positive       
 S. epidermidis NDNDNDNDNDNDND
 S. warneri NDNDNDNDNDNDND
 S. xylosus ND3+6+NDNDND8+
 E. faecalis NDNDNDNDNDNDND
Gram negative       
 P. aeruginosa NDNDNDNDNDNDND
 P. mirabilis NDNDNDNDNDNDND
 Salmonella spp.NDNDNDNDNDNDND
 Shigella spp.NDNDNDNDNDNDND
Degree of inhibition: + = moderate inhibition zone (6 to 9 mm), ++ = strong inhibition zone (10 to 14 mm), +++ = very strong inhibition zone (15 to 18 mm), and ND = nondetectable.