Table 1.

Atomic percent of CSNPs, PCSNPs, and ICSNPs calculated from ESCA survey scan spectra

Sample	Atomic percent (%)
	C	O	N	S	Cd
CSNP	30.04	17.35	-	16.26	36.35
PCSNP	62.09	22.09	1.59	6.71	7.52
ICSNP	56.79	35.81	2.72	1.33	3.35