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EPA Region 9: California, Arizona, Nevada, Hawaii, the Pacific Islands, and Tribal Natioi
Arizona's Releases
In 2009,268 facilities reported a total of 61 million
pounds of toxic chemical releases. Arizona's total
reported on-site and off-site releases decreased
36% (34 million pounds), when compared to 2008
data.
What is a Release?
A TRI "release" is defined as the amount of a toxic
chemical released on-site (to air, water, underground
injection, landfills, and other land disposal), and
the amount transferred off-site for disposal.
Total Releases for Reporting Years 2007 - 2009
Year
2007
2008
2009
Air
4,311,794
3,713,630
2,676,813
Water
4,364
58,877
1,343
On-Site Land
83,094,570
90,184,749
57,314,001
Underground
Injection
10
5
0
Off-Site
1,893,029
1,402,287
1,036,683
Releases to the Environment
Air: Air releases decreased 28% (1 million pounds)
since 2008.
Water: Water releases decreased 98% (58
thousand pounds) since 2008.
On-Site Land: On-site land releases decreased
36% (33 million pounds) since 2008.
Underground Injection: Underground Injection
releases decreased 100% (5 pounds) since 2008.
Off-Site Transfers: Total off-site transfers have
decreased 26% (366 thousand pounds) since 2008.
Facilities with Largest Chemical Releases
The top facilities in Arizona for total on-site and
off-site releases of chemicals are:
1
2
3
4
5
6
7
8
9
10
Facility Name
ASARCO LLC RAY COMPLEX/
HAYDEN SMELTERS
CONCENTRATOR
FREEPORT-MCMORAN
MIAMI INC.
SPRINGERVILLE
GENERATINGSTATION
FREEPORT-MCMORAN
SIERRITAINC.
CHOLLA POWER
PLANT
CORONADO GENERATING
STATION
SALT RIVER PROJECT NAVAJO
GENERATINGSTATION
ASARCO LLC MISSION
COMPLEX
FREEPORT-MCMORAN
MORENCI INC.
FREEPORT-MCMORAN
BAGDAD INC.
City
HAYDEN
CLAYPOOL
SPRINGERVILLE
GREEN VALLEY
JOSEPH CITY
SAINT JOHNS
PAGE
SAHUARITA
MORENCI
BAGDAD
County
Gila.AZ
Gila.AZ
Apache, AZ
Pima, AZ
Navajo, AZ
Apache, AZ
Coconino, AZ
Pima, AZ
Greenlee, AZ
Yavapai, AZ
Total
Releases
20,996,567
20,423,690
2,635,628
2,421,465
2,227,390
2,115,187
2,060,692
1,756,420
1,272,976
1,180,367
Top 10 Released Chemicals
The top released chemicals based on total on-site
and off-site releases in Arizona are:
Chemical
COPPER AND COPPER
COMPOUNDS
ZINC (FUME OR DUST) AND
ZINC COMPOUNDS
LEAD AND LEAD
COMPOUNDS
BARIUM AND BARIUM
COMPOUNDS
MANGANESEAND
MANGANESE COMPOUNDS
CHROMIUM AND CHROMIUM
COMPOUNDS (except Chromite
ore mined in Transvaal Region)
SULFURIC ACID (1994 AND AFTER
ACID AEROSOLS ONLY)
ANTIMONY AND ANTIMONY
COMPOUNDS
NICKEL AND NICKEL COMPOUNDS
ARSENICANDARSENIC
COMPOUNDS
Total Releases
(pounds)
24,116,817
10,953,638
8,922,820
7,418,649
2,239,349
1,841,768
835,001
615,377
452,068
436,910
Percentage of
Total Releases
40
18
15
12
4
3
1
1
0.7
0.7
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Industry Breakdown
Metal ore mining; nonferrous metal (except alumi-
num) production and processing; and electric power
generation, transmission and distribution account
for 97% of total releases in 2009.
Industry
Metal Ore Mining1
Nonferrous Metal (except Aluminum)
Production and Processing
Electric Power Generation,
Transmission and Distribution
Total Releases
29,043,953
21,003,825
9,451,003
Percentage of
Total Releases
48%
34%
15%
' The metal ore mining category includes the following metals: iron, gold, silver,
lead, zinc, copper, nickel, uranium, radium and vanadium.
Total Releases-Arizona Industry Sector
100,000,000
90,000,000
80,000,000
' 70,000,000
60,000,000
50,000,000
• 40,000,000
• 30,000,000
20,000,000
10,000,000
0
Aerospace Productand Parts
Manufacturing
• Pulp, Paper, and Paperboard
Mills
Electric Power Generation,
Transmission and Distribution
Nonferrous Metal (except
Aluminum) Production and
Processing
• Metal Ore Mining
Reporting Year
PBT Chemical Releases
Releases of Persistent, Bioaccumulative and Toxic
(PBT) chemicals are in pounds. Dioxin and dioxin-
like compounds data are in grams, not in Toxicity
Equivalence (TEQ).
PBT Releases Text: In Arizona, 9 million pounds of
total (on-site and off-site) releases of PBT chemicals
were reported. This is a decrease of 8.5 million
pounds or 49% since 2008. Lead and lead com-
pounds top the list in 2009. In determining release
quantities for metal compounds, facilities only con-
sider the primary metal portion of the compound.
For instance, a facility reporting for lead compounds
only reports the lead portion of the lead compounds
released. The PBT chemicals in the table are ranked
in descending order by 2009.
Chemical
LEADS LEAD COMPOUNDS
POLYCH LORI MATED
BIPHENYLS
MERCURY & MERCURY
COMPOUNDS
POLYCYCLICAROMATIC
COMPOUNDS
BENZO(G,H,I)PERYLENE
DIOXINANDDIOXIN-LIKE
COMPOUNDS (grams)*
Total On-Site and Off-Site
Releases
2008
17,369,529
130,750
35,700
326
1
0.0350
2009
8,922,819
75,832
9,031
322
1
0.0284
Percent
Change
-49
-42
-75
-1
0
-19
Facilities with Largest PB T Releases
The top ten facilities in Arizona for total on-site and
off-site releases of PBT chemicals are:
1
2
3
4
5
6
7
8
9
10
Facility Name
ASARCO LLC RAY COMPLEX/
HAYDEN SMELTERS
CONCENTRATOR
ASARCO LLC
MISSION COMPLEX
FREEPORT-MCMORAN
SIERRITAINC.
FREEPORT-MCMORAN
MIAMI INC.
FREEPORT-MCMORAN
SAFFORD INC.
FREEPORT-MCMORAN
BAGDAD INC.
ASARCO LLC RAY MINE
OPERATIONS
FREEPORT-MCMORAN
MORENCI INC.
BHPCOPPERINC.
PINTO VALLEY OPERATION
NORD RESOURCES CORP.
JOHNSON CAMP MINE
City
HAYDEN
SAHUARITA
GREEN VALLEY
CLAYPOOL
SAFFORD
BAGDAD
KEARNY
MORENCI
MIAMI
DRAGOON
County
Gila.AZ
Pima, AZ
Pima, AZ
Gila.AZ
Graham, AZ
Yavapai, AZ
Final, AZ
Greenlee, AZ
Gila.AZ
Cochise, AZ
Total
Releases
2,103,194
1,379,317
1,295,040
1,158,120
938,074
562,402
471,066
392,846
211,444
211,112
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