INDUSTRY HYGIENE MONITORING AT JB COCOA SDN BHD
SITI MASHALIDA BINTI JOHAR (2010249312)
BACKGROUND
PROCESS FLOW
JB Cocoa Sdn. Bhd. Is a cocoa processing plant in the Port of Tanjung Pelepas (PTP), Johor
that operated since 2002. In 2003, JB Cocoa was commissioned the plant and commenced
production, sales and export of cocoa ingredients namely cocoa liquor/ mass, cocoa
butter, cocoa cake and cocoa powder. Presently the plant is operating at annual
production capacity of 60,000 tones of cocoa bean equivalent. The plant is mostly
operated 24 hours daily (production lines) with 237 workers including top management,
technician, engineer, general workers, safety and health officer and administration staff.
JB Cocoa was operated in compliance with the world-renowned quality and food safety
standards namely ISO9001:2008 and HACCP (Ministry of Health Malaysia).
OBJECTIVE
The industrial hygiene and environmental monitoring program was initiated to :
1) Monitor the industry hygiene and occupational safety & health properties in JB Cocoa
Sdn Bhd;
2) To verify compliance with the appropriate environmental standards and guidelines;
3) To suggest the preventive and control measure.
HAZARD MEASUREMENT
INDUSTRIAL HYGINE MONITORING
HAZARD MEASUREMENT
1) AIR MONITORING
Workers are potential in exposed in
emission of contaminants from the
Using TSI DustTrak II, TSI QTrak, ppb RAE
activities such as :
3000
i) dust from dumping, filling and
palletizing process
The parameter monitored are Particulate ii) combustion gases from heating process
Matter
(PM10), Carbon monoxide (CO),
Carbon dioxide (CO2) and relative humidity
(RH).
RESULT
1) AIR MONITORING
PM10 (ppm)
0.5
0.4
0.3
0.2
0.1
0
CO (ppm)
0.461
0.344
0.173
0.041
14
12
10
8
6
4
2
0
2.4
1.6
1.9
RH (%)
CO2 (ppm)
2.1
1200
1000
800
600
400
200
0
80
60
72.6
73.7
74.2
40
574
447
528
469
20
0
2) NOISE MONITORING
2) NOISE MONITORING
Workers are expose to high noise produced
from:
Using Sound Level Meter TENSMAR TM-101
i) cocoa bean dumping process
ii) silo and grinding process (in control
The measurement was taken at the dumping
room)
area in warehouse, control room and iii) palletizing work
palletizing.
3) LIGHT MONITORING
i)
Using Light Meter-CENTER 337
Working in warehouse and palletizing
area was expose to accident with the
forklift
The measurement was taken at the palletizing
area and warehouse.
Unit
Noise
monitoring
db(A)
2)
3)
4)
5)
91.3
59.8
Palletizing
area
74.3
105
Palletizing
area
FM (SHW)
Regulation
1970
4.85
5
3) LIGHT MONITORING
Unit
Light
monitoring
foot candle (fc)
DISCUSSION AND RECOMMENDATION
1)
Warehouse Control room
FM (Noise
Exposure)
Regulation
1989
For indoor air quality monitoring, it is found that carbon monoxide concentration, carbon dioxide
concentration, particulate matter (in the control room) are not exceeded the acceptable limit as
stipulate in ICOP IAQ 2010 (CO = 10 ppm, CO2 = C1000 ppm, PM10 = 0.15 ppm & RH = 40 – 70%).
The relative humidity is required to be between 70 – 80% because it is a suitable quality control
measure for the cocoa product, however it is over the acceptable range as stipulate in ICOP IAQ
2010. Thus it is recommended that regular cleanliness measure is done to eliminate mould if existed.
The source of PM10 in the warehouse and palletizing area is due to cocoa bean dust and boxes dust.
It is recommended to switch on exhaust fan ventilation at all time, ensure cleanliness regularly and
equipped staff with appropriate PPE.
For the noise exposure, only noise exposure monitored in the warehouse exceed the action level as
stipulate in regulation, however all of the volumes are not exceed the permissible level for 1 hour. It
is suggested that appropriate PPE is applied by the worker in the warehouse.
Only light in palletizing area is lower than the standard stipulate by the regulation. It is
recommended to ensure all lamp and other lighting device is in functioning status and clean at all
time. Dust which tampered the surface of the lamp must be wipe off. Additional lighting sources may
be required.
Warehouse 1 Warehouse 2
(dumping)
(stored)
5.32
5.3
REFERENCES
1)
2)
3)
4)
5)
Factory and Machinery Act 1967 (Act 139) [Abbr. FMA]
Factory and Machinery (Safety, Health & Welfare) Reg. 1970
Factory and Machinery (Noise Exposure) Reg. 1989
Occupational Safety & Health Act (Act 514) (Abbr. OSHA)
Industry Code of Practice Indoor Air Quality 2010 (Abbr. ICOP
IAQ 2010)
6) Air Monitoring-OSHA : http://www.osha.gov.pdf
7) Occupational Hygiene-Workplace Safety and Health Council :
http://www.wshc.sg/WDA_OH_Broch
8) Industrial Hygiene Plan-Risk Management & Safety :
http://rms.univ.edu
74.7