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1362.6 - Regional Statistics, Tasmania, 2007  
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 06/02/2006  Ceased
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Contents >> Environment >> Atmosphere >> Air pollution >> Other sources of emissions

Emissions from facilities using less than the specified amount of the substances listed on the NPI are estimated by the Department of Primary Industries, Water and Environment (DPIWE) in Tasmania. DPIWE also estimates emissions arising from everyday household activities, such as driving to work and mowing the lawn. Both of these types of emissions are included on the database. In Tasmania, estimated aggregate emissions are compiled for the Hobart and Launceston airsheds.

Estimated emissions from other aggregate sources were higher on most counts at the Hobart airshed. However, for the Launceston airshed there were estimated to be higher levels of industry-related oxides of nitrogen, transport-related sulfur dioxide and 'other' related levels of lead and compounds. The highest levels of estimated annual emissions in both Hobart and Launceston were of carbon monoxide, lead and compounds and oxides of nitrogen; each was related to transport.


ESTIMATED ANNUAL EMISSIONS OF SELECTED POLLUTANTS, Other aggregate sources(a)(b)(c)(d)
Carbon
monoxide
Lead &
compounds
Mercury &
compounds
Oxides of
nitrogen
Particulate
matter(e)
Sulfur
dioxide
Total volatile
organic compounds(f)

tonnes
kg
kg
tonnes
tonnes
tonnes
tonnes

Industry(g)
Hobart airshed
110
950
16
130
1,100
340
480
Launceston airshed
18
490
9
470
550
190
340
Transport(h)
Hobart airshed
51,000
11,000
3
6,000
200
100
420
Launceston airshed
27,000
6,000
-
3,200
130
140
53
Other(i)
Hobart airshed
23,000
49
3
360
2,400
370
7,300
Launceston airshed
14,000
52
1
200
1,300
75
4,500


- nil or rounded to zero
(a) NPI airsheds cover rectangular areas with the following boundaries: Launceston airshed extends as far west as Deloraine, as far south as Longford, and as far north-east as East Sandy Point, near Bridport. Hobart airshed extends as far north as Bagdad, as far east as Dodges Ferry, as far south as the southern-most tip of Betsey Island, and as far west as Hayes, near New Norfolk.
(b) Specified Tasmanian reporting facilities data are obtained from the facility emission data report (air) within http://www.npi.gov.au. Accessed May 2003.
(c) Data are derived using best estimate methodologies, not direct measurement. Accuracy of data will vary according to the estimation technique used. Estimates accessed at May 2003.
(d) Data collected from 2002 onwards will provide a more valid comparison due to the refinement of estimation techniques.
(e) Dust particles of any substance that are less than 10 micrometres diameter.
(f) A grouping of a wide range of volatile organic chemical compounds (substances made up of predominantly carbon and hydrogen) to simplify reporting when these are present in ambient air or emissions.
(g) Includes fuel combustion from facilities with emissions below the reporting threshold, service stations, motor vehicle refinishing, cutback bitumen, bakeries, dry cleaning, and print shops/graphic arts.
(h) Includes motor vehicles, recreational boating, aeroplanes, railways and commercial shipping/boating.
(i) Includes solid fuel burning (domestic), burning and wildfires, lawn mowing, backyard incinerators, barbecues, liquid fuel burning (domestic), gaseous fuel burning (domestic), domestic and commercial solvents and aerosols and architectural surface coatings.

Source: National Pollutant Inventory Database at http://www.npi.ea.gov.au. Department of Primary Industries, Water and Environment


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