Project presentation, WBV Kirovsk

WHOLE BODY VIBRATION EXPOSURE AND PREDICTION OF HEALTH RISKS ASSOCIATED WITH THE OPERATION OF SURFACE HAUL

TRUCKS IN OPENCAST MINES IN NORTHWEST RUSSIA

KIROVSKCITY

Underground mine

Open mine

Øvrum A. (1), Skandfer M. (1), Talykova L. (2) Nikanov A. (2), Syurin S. (2), Khokhlov T. (2)

TROMSØ

KIROVSK

MURMANSK

OSLO

ST. PETERSBURG

NORWAY

SWEDEN

FINLAND

RUSSIA

ARKHANGELS

Met

hode

Resu

lts

Dis

cuss

ion

Intr

oduc

tion

RUSSIA INDIA CANADA

Compare exposure values with findings in other international studies from similar work places

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II

Discuss predicted health risks associated with the use of Surface Haul Trucks (SHTs) according to the criteria in ISO standard 2631-1, annex B and EC Directive 2002/44/EC.

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Conc

lusi

on

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© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

1 INTRODUCTIONSHT drivers n = 250

12 hour shifts, WBV exposure 8 hours

Surface Haul Trucks:

Caterpillar andBelarussian Autoworks (Belas)

2 MATERIAL – Surface Haul Trucks (SHT’s)

Caterpillar 785C:

Belas 75 121:

Belas 75 131:

Belas 75 145:

Range of measurment periodes: 13-58 min.

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

n=14

MEASUREMENTS:

ISO 2631-1, 1997Portable measurement equipment (Larson Davis)Seat pad and accelerometer (PCB)

Table 1: Frequency-weighted r.m.s. acceleration and vibration dose value (VDV) for 4 types of SHTs.

3 RESULTS

Vehicle type

Number of vehicles(number of measurments)

Measurment duration (min.)

Most severe axis acceleration r.m.s (z-axis)(m/s2)

Most severe axis vibration dose value (VDV) (z-axis)(m/s-1,75)

Mean Min. Max SD Mean Min. Max SD

Caterpillar 785C 2 (2) 31-37 1,12 1,09 1,15 0,04 13,65 13,5 13,8 0,21Belas 75 121 2 (2) 34-45 1 1,05 0,96 0,06 10,95 10,4 11,5 0,78Belas 75 131 4 (6) 21-25 0,83 0,7 0,92 0,1 8,26 6,89 9,91 0,99Belas 75 145 6 (7) 13-58 1,1 0,73 1,57 0,29 11,04 7,24 14,4 2,92SHTs n=14* 14 (17) 13-58 1 0,7 1,57 0,23 10,35 6,89 14,4 2,61

WBV exposure from SHT’s (n=14) A(8)rms = 1,0 m/s2, SD = 0,23

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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4 DISCUSSION

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

RUSSIA INDIA CANADA

Compare exposure values with findings in other international studies from similar work places

Discuss predicted health risks associated with the use of Surface Haul Trucks (SHTs) according to the criteria in ISO standard 2631-1, annex B and EC Directive 2002/44/EC.

4 DISCUSSION

NORTH WEST RUSSIA INDIA

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

[1],[2]

[1] Mandal B.B., (2006). Whole body vibration exposure of heavy earth moving machinery operators in Indian mines. Indian Mining & Engineering Journal (2006), Vol 45:29-31.[2] Shrawan Kumar, (2004). Vibration in operating heavy haul trucks in overburden mining, Applied Ergonomics 35 (2004) 509-520.

Limit value21 m/s2

Action value9,1 m/s-1,75

4 DISCUSSION

NORTH WEST RUSSIACANADA

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

[3]

[3] Eger T., Salmoni A., Cann A., Jack R. (2006). Whole-body vibration exposure experienced by mining equipment operators. Occupational Ergonomics 6 (2006) 121-127.

Limit value1,15 m/s2

Action value0,5 m/s2

ISO 2631-1 Annex B Directive 2002/44/EC

A(8) (m/s2 r.m.s)

VDV(8) (m/s1,75)

A(8) (m/s2 r.m.s)

VDV(8) (m/s1,75)

For exposure below the zone (HGCZ) health effects have not been clearly documented and/or objectively observed.

0,45 8,5 Action value

0,5 9,1

HGCZ - Health Guidance Caution Zone.

0,45 - 0,9 8,5 - 17

Above the HGCZ health risks are likely.

0,9 17 Exposure limit

1,15 21

Table 2: Health guidance caution zones in ISO 2631-1 (Annex B) and exposure limit values and action values in Directive 2002/44/EC.

4 DISCUSSION

ISO 2631-1 Annex B Directive 2002/44/EC

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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Directive 2002/44/EC HGCZ Appendix ISO 2631-1

1,0 m/s2 - mean A(8)rms

Limit value1,15 m/s2

Action value0,5 m/s2

HGCZ0,45 – 0,9 m/s2

A(8)rms

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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Directive 2002/44/EC HGCZ Appendix ISO 2631-1

10,35 m/s1,75 - mean VDV

Limit value21 m/s2

Action value9,1 m/s-1,75

HGCZ8,5 – 17 m/s-1,75

Vibration dose value, VDV

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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Crest factor (n=14) = 12,78 SD±5,26.

Directive 2002/44/EC

A(8)rms

Workers subjective impression of exposure

Winter

Summer

SpringAutume

Seats

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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WBV

Road quality

Seat, type

Driver Vehicle, maintenance

FACTORS INFLUENCING THE WBV in SHT’s

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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Occupational - Clinics:

Tromsø, NorwayKirovsk, Russia

Umeå, Sweden

Mining - Communities:

Longyear city, Norway

Kirovsk, Russia

Kiruna, Sweden

FUTURE PROJECT – WBV, mining industry, Barents Region

© 2009 Department of Occupational and Environmental Medicine, University Hospital of North Norway

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© 2009 Department of Occupational and Environmental Medicine, UNN HF

20© 2008 Dept. of Occupational and Environmental Medicine, UNN 20

TROMSØUniversity Hospital of North Norway

THANK YOU!

ANY QUESTIONS?