Nonmetallic MineralsNonmetallic Minerals
Metal MiningMetal Mining
Coal MiningCoal Mining
Other MinesOther Mines
*1987 Standard Industrial Classification (SIC)
NonmetallicNonmetallicMinerals Minerals
(SIC 1400)(SIC 1400)59%59%
Metal MiningMetal Mining(SIC 1000)(SIC 1000)
38%38%
Coal Mining Coal Mining (SIC 1200)(SIC 1200)
1%1%
Mines of Mines of Unknown TypeUnknown Type
2%2%
No. of Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis
Identified
Year Silicosis
Identified
Year First Exposed to Silica Dust
48
Nonmetallic minerals (sand, gravel, stone)
Laborer 14Heavy Equip. 8Dryer Oper. 5Mgr/Oper. 5Machinist 3Miner 3Bag Handler 2Truck Driver 2Screen Oper. 2Mining Engin. 1Shipping 1Unknown 1
43-86 1979-2006 1925-1978
No. of Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis
Identified
Year Silicosis
Identified
Year First Exposed to Silica Dust
31
Metal mining (iron, silver, zinc)
Miner 16Driller 5Mechanic 3Laborer 3Explosives 1Electrician 1Unknown 1
54-88 1979-2009 1918-1956
2 Mines of unknown type Mining engineer 2 45-80 1982-2006 Unknown
1
Coal mining Explosives/tunnel worker 1
80 2006 1958
No. of Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis
IdentifiedYear Silicosis
Identified
Year First Exposed to Silica Dust
25
Construction sand and gravel
Laborer 9Machine/Equip. operators 5Drier Operator 3Bag Handler 2Machinist 2Truck Driver 1Foreman 1Miner 1Unknown 1
52-86 1979-2006 1925-1969
NONMETALLIC MINERALSNONMETALLIC MINERALS►►Construction Sand and GravelConstruction Sand and Gravel
No. of
Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis
Identified
Year Silicosis
Identified
Year First Exposed to Silica Dust
9 Industrial sand
Machine/Equipment operators 3Sand drier 2Laborer 1Truck Driver 1Mechanic 1Sweeper 1
58-83 1981-2004 1938-1969
NONMETALLIC MINERALS NONMETALLIC MINERALS ►►Industrial SandIndustrial Sand
No. of
Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis
Identified
Year Silicosis
Identified
Year First Exposed to Silica Dust
6
Crushed and broken stone (all types)
Quarry worker 2Screener 1Plant manager 1 Stone Crusher Operator 1Mining engineer 1
60-84 1986-2002 1942-1963
4 Miscellaneous nonmetallic minerals (graphite)
Mill operators 2Screener 1Shipping 1
53-60 1995-1997 1958-1977
3 Dimension stone Quarry worker 1Miner 1Unknown 1
43-76 1988-1997 1936-1944
2 Mines of unknown type Mining engineer 2 45-80 1982-2006 Unknown
1 Kaolin and ball clay Sample manager 1 75 2005 1968
NONMETALLIC MINERALSNONMETALLIC MINERALS►►Stone, graphite, clayStone, graphite, clay
No. of Cases
Type of Employer at Time of Silica Exposure Occupation
Age Silicosis Identified
Year Silicosis Identified
Year First Exposed to Silica Dust
26 Iron ore mines Miners 11Trammers 1Drillers 5Electricians 1Laborers 1Explosives 1Mechanics 2Loader 1Unknown 3
54-85 1979-2009 1919-1956
3 Zinc ore mines Miners 81-88 1981-2004 1918-1935
1 Silver mine Miner 85 2000 1940
1Metal ore mine (not elsewhere classified)
Mining engineer 80 1982 Unknown
METAL MININGMETAL MINING