Table 5.

Characterisation of coals used in the experiment

Coal	Mad	Vad	Aad	Clad	Cad	Had	Sad	Hgad
	(wt%)							(μg kg−1)
Sub-bituminous coal	1.13	22.74	7.6	0.33	83.8	4.65	0.58	103.7
Lignite	12.9	41.20	23.7	0.05	43.5	4.90	1.80	443.5