current situation of asbestos in thailand dr. somkiat siriruttanapruk bureau of occupational and...
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Current Situation of Asb estos in Thailand
Dr. Somkiat Siriruttanapruk Bureau of Occupational and
Environmental Diseases, Ministry of Public Health, Th
ailand
Asbestos It has been imported for more t
han 3 0 years - Itisusedinseveral i ndustri es: roof t
ile,cementpipe,etc. Asbestosisi s one of the occupati onal d
iseases under national disease surveillance scheme.
Introduction
No asbestos mine in the country Only import for manufacturing Only chrysotile is allowed to use (crocidolite was banned in 1992
and amosite was banned recently)
Production and use
90% cement manufacture, r ttttt tttttt tttt,
8 % brake and crutch
2 % , ,vinyl floor tile gasket heattttttttttt tttttttt
The proportion of asb estos use in manufact
uring industry
Amount of imported asbestos -in Thailand (1 9 8 8 2 0
02)
0
50000
100000
150000
200000
1988198919901991199219961997199819992000200120022003200420052006
Tons
Top 1 0 countries of imported asbestos
in Thai l and, 2002 1. Russian Federation 46132, tttt 2. Canada 42091 Tons 3. Brazil 33740 Tons 4. Kazakhstan 28500, Tons
tttttttt5. 22759, Tons ttttt tttttttt6 1914, Tons 7. Belize 1656, Tons 8. Swaziland 1638, Tons 9. South Africa 1476, Tons
10. Botswana 1080, Tons
Top 5 countries of imported asbestos in tt
-ailand during 1997 2002
0
10000
20000
30000
40000
50000
60000
70000
80000
1997 1998 1999 2000 2001 2002
Canada
Russia
Greece
Zimbabwe
Brazil
Tons
Number of asbestos factori es andworkers
by type in each region of the 2004countryin Central South North North-
east No. of workers
Roof tile 4 1 1 1 1297
Pipe 2 - - - 138
Construction 5 - - - 240
Brake &Crutch
2 - - - 109
Total 13 1 1 1 1784
Asbestos concentration in working environment investigated by NICE in 2000 and by Department of Industrial works in 2001.
Year 2000 Year 2001
Factory type numbers Asbestos conc. (fiber/cc.)
numbers Asbestos conc.(fiber/cc.)
1. Roof tile
& pipe
4 0.01-2.2* (0.81+0.72)
4 0.01-0.77 (0.09+0.21)
2. Brake 5 0.24-43.31* (6.93+8.19)
3. Clutch 2 0.62-2.41*
(1.45+0.65)
25 0.01-25.71* (1.07+3.11)
Note: * means over than ACGIH TLVs for chrysotile which was 2 fibers/cc. (Even though it was adjusted to be 0.1 fiber/cc. in 2001)
tttttt tttttt tt tttttttt() i nsome Asi ancountri es
Fiber/cc
Malaysia, Singapore 0.1
Vietnam 1.0
Philippines 2.0
Japan, Korea 2.0
Thailand 5.0
2003Takahashi et al. ( )
Never been reported to the sur veillance scheme or the Workm
en’s Compensation Fund
Asbestos related diseases
?
1. This maybe the real situation, or - 2. :Under report of cases
tttt ttttttt tttttt tt ttt ttttttt tttt tttt-tttt tttt ttttt ttttttt Lack of awareness and knowledge i
t tttttttttt ttt ttttttt tt ttt tttttttttt
tt tttttt-tt tt tttttttttttt tttttt
Estimation of cases of asbestos-related diseases in
Thailand Tossavainen indicated a significant linear
correlation between consumption of asbestos and the number of mesothelioma cases.
Calculating as follows:Y= 6.82x amount of consumption (25-30 years
ago)+0.43Y= No. of cases/million/yearAmount of consumption= No. of Kg/capita/year
(2.5 Kg/cap/y)Y=(6.82x2.5)+0.43=17.5 cases/million/yearTotal new cases/year=17.5x63= 1,103 cases
Results of the survey
Year No. of
Factories
No. of
workers
No. of
abnormal CXR
No. of
pleural
thickenin
g
No. of
suspected asbestosi
s
1987 24 701 13 13 -
2000 6 669 ? - -
2003 6 140 41 5 -
2004 8 106 31 9 1
Do we need to prevent a nd control
- asbestos related disease?
Ifwedon’t doanythi ng, what will happen?
Health status of exposed workers
Cost of medical service and compensation
Public alarming Economic problem Company and country reputation
Can we prevent and con - trol asbestos related di
seases in Thailand?
SWOT Anal ysi s
: - wel l establ i shedresponsi bl e organi
zati ons Exi sti ngrel evant l egi sl ati onsyste
m Goodheal thservi ce system
SWOT Anal ysi sWeakness: No data for convincing policy makers and p
ublic Lack of awareness among government offic
ers, employers, employees, and occupatio nal health professionals
Poor agreement among relevant governme nt agencies
Lack of knowledge for health screening an d diagnosis of the disease among physician
s No effective surveillance system
SWOT Anal ysi s
Opportunity: Global concern Strong supportive network Low number of target population Alternative materials and other technical
preventive measures are available
SWOT Anal ysi s
: Lack of policy support? - Being againstby pro asbestos local and i
nternational industries Economic burden No public awareness
Conclusions
Consumption of asbestos in Thailand is very high and the trend shows its in
creasing - Asbestos related diseases will becom
e more important public health issue Several measures need to be implem
ented urgently Strategy of asbestos ban is the best p
olicy but an achievement of this goal i s still a long way
Thank you very much!