Environmental Sciences Europe

Table 4 Statistical values of the moss reference materials M2 and M3

From: Spatial structures of heavy metals and nitrogen accumulation in moss specimens sampled between 1990 and 2015 throughout Germany

	M2	M2^a		RR (%)	M3	M3^a		RR (%)
	Reference	MV ± SD	RSD (%)	RR (%)	Reference	MV ± SD	RSD (%)	RR (%)
Cd	0.454 ± 0.019	0.44 ± 0.01	1.8	97.2	0.106 ± 0.005	0.101 ± 0.01	5.6	95.6
Cr	0.97 ± 0.17	0.89 ± 0.07	7.6	92.2	0.67 ± 0.19	0.58 ± 0.06	11.3	86.0
Pb	6.37 ± 0.43	6.54 ± 0.2	3.6	102.6	3.33 ± 0.25	3.41 ± 0.09	2.7	102.3
Hg	0.058 ± 0.005	0.057 ± 0.001	1.8	99.0	0.035 ± 0.004	0.037 ± 0.006	16.0	105.7

MV ± SD mean value ± standard deviation (in mg/L, µg/L for Hg), RSD relative standard deviation, RR recovery rate, related to the reference
^aMeasurements

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