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2011 Toxics Release Inventory
Alaska State Report
January 2013
Releases in Alaska
What is a Release?
in 2011, 35 facilities reported over one billion pounds of
toxic chemical disposal and releases, an increase of 25%,
or 212 million pounds, from 2010. Alaska ranks first in the
nation for total TRI chemicals reported released.
A TRI "release" is defined as the amount of a toxic
chemical released, or disposed of, on-site (to air, water,
underground injection, landfills, and other land disposal),
and the amount transferred off-site for disposal. All
releases values in this report are listed in pounds released
in 2011.
Total Releases Reported in Alaska from 2007- 2011
All TRI Releases in Alaska
5 600
= 400
50


45

Off-Site
40
3*
O
Other On-site
35
-n
$
n
¦•Water
30
P
VI
^BAir
25

—~—No. of Facilities
20

Reporting
2007 2008 2009 2010 2011
Note: releases to air and water are broken out in the graph on the right
TRI Releases to Air and Water in Alaska
1,600
1,200
1,000
2007 2003 2009 2010 2011
i Water
¦ Air
-No. of Facilities
Reporting
Top Five Facilities

Facility
City
Total On-Site Releases (lbs.)*
1
Red Dog Operations
Kotzebue
989.392,511
2
Hecla Greens Creek Mining Co
Juneau
47,043,742
3
Pogo Mine
Delta Junction
8,362,278
4
Fort Knox Mine
Fairbanks
2,611,142
5
US Army Fort Wainwright Cantonment
Fort Wainwright
177,113
"Includes on-site releases to air, water, underground injection, and land disposal (including landfills, land treatment and holding ponds).
TRI facilities are regulated by EPA, state, and/or local environmental agencies. Use Envirofacts to learn more about these facilities.
Top Five Industries

Industry
On-Site Releases (lbs.)
Off-Site Disposal (lbs.)
Total On and Off-Site Disposal
and Releases (lbs.)
Percent of Total
1
Metal Mining
1 047.422 411
188
1,047,422,599
99.87%
2
No Industry Code (Gov't Facilities)
426,394
136,989
563,383
0.05%
3
Electric Utilities
5,813
499,077
504,890
0.05%
4
Coal Mining
141,252
0
141,252
0.01%
5
Petroleum
90,027
25
90,052
0.01%

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Top Five TRI-Chemicals Released
Top Chemicals Released to Air in 2011
Top Chemicals Released to Water in 2011
ZINC COMPOUNDS
0.6%
AMMONIA
0.8%
MANGANESE
COMPOUNDS
1.3%
Top Chemicals Released to Land in 2011
COPPER AND COPPER
COMPOUNDS
0.3%
ARSENIC COMPOUNDS
0.6%
OTHER
LEAD AND LEAD
COMPOUNDS
46.9%
ZINC COMPOUNDS
51.8%
NITRATE COMPOUNDS
0.1%
XYLENE (MIXED
ISOMERS)
0.1%
OTHER
NITRATE
COMPOUNDS
96.8%
Persistent, Bioaccumulative, and Toxic
(PBT) Chemicals
PBT chemicals are toxic chemicals that
persist in the environment and bioaccumulate
in food chains, posing risks to human health
and ecosystems. PBT chemicals are a subset
of the TRI-listed chemicals that have stricter
reporting requirements.
Total PBT Chemical Releases - Comparison of 2011 to 2010
Chemical
2010 On-Site
PBT Releases
(lbs.)
2011 On-Site
PBT Releases
(lbs.)
Percent
Change
Lead and lead compounds
336,508,616
487,853,094
44.97%
Mercury and mercury compounds
126,958
183,588
44.61%
Polycyclic aromatic compounds
105
61
-42.12%
Benzo(g,h,i)perylene
11
6
-49.03%
Dioxin and dioxin-like compounds
0.001575
0.001715
8.89%
OTHER
16%
METHANOL
61%
N-HEXANE
4%
XYLENE (MIXED
ISOMERS)
6%
ZINC
COMPOUNDS
6%
HYDROGEN
FLUORIDE
7%
The TRI dataset used for this report includes revisions processed by EPA as of October 10, 2012
For more information about the TRI program, visit www.epa.gov/tri

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