Table 2.

Limit values of zinc, cadmium and lead in the European Union, compared to the upper estimates of the limit of detection of the bacterial bioreporter P. putida KT2440.2431(pDNPczc1lux)

Metal	Limit value		Upper estimate of the limit of detection, mg/l
	Surface water, mg/la	Soil, mg/kgb
Zn	3	150…300	0.003
Cd	0.005	1…3	0.010
Pb	0.05	50…300	0.004

^aCouncil Directive 75/440/EEC

^bCouncil Directive 86/278/EEC.