Table 2 Hazardous waste to unknown handling 1999 to 2010, by material. 1 000 tonnes.

2 Hazardous waste to unknown handling 1999 to 2010, by material. 1 000 tonnes.¹
Type of material	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010


Total	56	60	46	51	97	115	93	90	78	74	72	74
Waste containing oil	43	47	33	37	41	63	45	44	30	37	31	40
Waste containing solvents	4	3	3	4	1	2	1	1	1	1	1	1
Other organic hazardous wastes	4	4	4	3	44	39	38	33	36	31	31	27
Waste containing heavy metals, polluted matter	4	5	5	6	8	9	6	8	8	3	7	3
Corrosive waste	0	0	0	0	0	0	0	0	0	0	0	0
Other inorganic hazardous wastes	0	0	0	0	0	1	0	0	0	0	0	0
Contaminated wastewater	0	0	0	0	0	0	0	0	0	0	0	0
Photochemicals	1	1	1	1	2	2	2	3	2	2	2	2
Nonclassified hazardous waste	0	0	0	0	0	0	0	0	0	0	0	0

¹	1 Amendments in legislation entering into force 01.01.2003 define additionally some waste types as hazardous. In 2003 about 47 000 tonnes of such waste types were handled in unknown ways.
Source: Statistics Norway (2011).
More information: Håkon Skullerud, Kari Benterud Mellem.