Topic : Physical Hazards


Heat management to Optimise Work Productivity and Safety

Associate Professor at Yong Loo Lin School of Medicine | Global Asia Institute (Joint Appointment) | N.1 Institute of Health (Joint Appointment) | National University of Singapore


Assoc. Prof. Jason Lee obtained his PhD in Exercise Physiology under sponsorship from the UK Overseas Research Scholarship and Faculty Studentship. He is a Fellow of the American College of Sports Medicine and a member of the Professionals in Nutrition for Exercise and Sport. Tapping on his experience as a Commando Officer in the Singapore Armed Forces and domain knowledge, he serves in various national and international panels related to human performance and safety. His main research interests are in fluid balance, thermoregulation and mitigation strategies for improving human performance.

He recently completed his 12-year tenure at the DSO National Laboratories by directing the Human Performance Programme in his final appointment. He is currently a Research Associate Professor in Yong Loo Lin School of Medicine at the National University of Singapore. Assoc. Prof. Lee chairs the National (Singapore) Work Group on Heat Stress Guidelines for Workers and the Scientific Committee on Thermal Factors at the International Commission on Occupational Health. He is also a member of the WHO and WMO Report on Climate Change on Workers’ Health and Productivity.

Occupational heat stress is a threat to human health, work productivity and safety. New attention on this issue has been created by the ongoing climate change, which in large parts of the world has caused more hot days each year and hotter hot days. In addition to the more commonly known effects of heat stress on heat injury, heat negatively affects work productivity. Productivity losses may exceed 30% by 2050. Heat stress can also increase occupational injuries and therefore brings in a new safety dimension to this threat. All regions with seasonal or permanent heat stress will experience elevated impact. Occupational heat stress in the agricultural, construction and factory sectors are particular concerns as workers are often highly exposed. In order to optimise work productivity and safety in the heat, various strategies can be employed to alter heat strain such as optimising work-rest cycles, maximising aerobic fitness, heat acclimatisation, pre-exercise cooling and fluid ingestion.


Effects of Radiation and the Reasons for the ALARA Principle in Radiation Protection

Senior Principal Medical Physicist at the Department of Nuclear Medicine and Molecular Imaging, Singapore General Hospital


Mr. S. Somanesan currently works as a Senior Principal Medical Physicist at the Department of Nuclear Medicine and Molecular Imaging of the Singapore General Hospital, and has worked there for 30 years. His secondary appointments are Hospital Radiation Safety Officer and being the Operations & QA Manager, Cyclotron Facility of Positron Tracers Pte Ltd, besides being the chief of the Radiation Response Team at SGH.

His current roles provide medical physics support to the various Nuclear Medicine departments in Singapore as well as working on Quality Management for the department and the hospital. He has immense experience in setting up and operating a GMP certified PET radiopharmaceutical facility.

He has been a founding member and the immediate past president of the Society of Medical Physicists of Singapore, and is an associate member of the International Organisation of Medical Physicists. He chairs several committees in radiation safety, quality management and medical physics education both within Singapore and for the IAEA. He has been an active visiting lecturer and expert in Nuclear Medicine, Quality Management & radiation physics for the IAEA for the last 25 years.

AbstractIonising Radiation and radionuclides are present naturally. Both are used in several industries such as non-destructive testing, nuclear power generation, food and blood product sterilisation and in medicine specifically in the diagnosis and therapy of diseases. Their use poses a radiation burden to personnel and the environment. Knowing how to protect oneself and the environment from radiation and contamination is an important aspect.

ALARA (As Low As Reasonably Achievable) is a safety principle designed to minimize radiation doses and releases of radioactive materials. More than merely best practice, ALARA is predicated on legal dose limits for regulatory compliance and is a requirement for all radiation safety programs.

This talk serves to provide participants an overview of radiobiology, as well as unravel the mystery of minimizing radiation doses and the protection of staff and the environment. With the knowledge obtained from this talk, you will have better awareness towards radiation safety in the workplace and how to minimize your radiation exposure.

Workplace Noise Control – Its New Requirements and New Areas of Concern

President of the NUS (SHE) Alumni Society


Er. Chui Heng Tak is the current President of the NUS (SHE) Alumni Society, where he is a volunteer. He is also the current convenor of the Singapore Standard Code of Practice for Code of Practice for Workplace Noise Control (ex-CP 99: 2003) on the Specification for Industrial Noise Control with Enterprise Singapore. An Adjunct Assistant Professor at NUS, he is also an owner of QualiTech Consultancy providing Noise and Management System consultancy services. Currently, he is also a third-party auditor for DNVGL conducting audits in ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, SS 506, Bizsafe, and WSHMS.

He is a registered Professional Engineer (Mechanical) in Singapore, an MOM-approved noise monitoring and noise control officer, and a workplace auditor.


Noise is one of the main health hazards at workplace and noise-induced deafness (NID) is a predominant occupational disease. The Factories (Noise) Regulations was enacted in 1997 to control noise hazards and protect the hearing of workers. The CP 99:2003 Code of Practice for Industrial Noise Control was introduced in 2003 to provide technical information on noise control. With the crossover of the Factories (Noise) Regulations to Workplace Safety and Health (Noise) Regulations in 2011 under the new WSH framework, the CP was recently been revised and updated. This paper presents the following key features of the revised CP for Workplace Noise Control.
Noise risk assessment and control
Roles and responsibilities of stake holders (including employers, occupiers, manufacturers and suppliers of noisy machinery, competent persons for noise monitoring and control, and WSH officers)
Noise (including ultra-sound) exposure limits and noise control criteria
Noise control for new plants
Noise hazard management (including noise control plan and key elements of Hearing Conservation Programme)
 Topic : Health at Work  

Legal and Ethical Challenges of Health Care for Foreign Workers Senior Consultant, Department of Medicine, Ng Teng Fong General Hospital


Dr. Lee See Muah qualified as an Occupational Physician. He has special interests in chronic disease and work. He read law with the University of London and also obtained his LLM with the University of Edinburgh.

He chairs the Clinical Ethics Committee in NTFGH and has a concurrent appointment as Legal Counsel with the NUHS Legal and Board Secretariat.

The foreign worker who falls sick, either from work related injuries or from non-work related injuries and sickness pose ethical and legal challenges when navigating the health care system.

Disclosure issues to employers and limits of care as imposed by financial constraints continue to challenge doctors who provide care for the foreign worker.

This presentation analyses the ethical and legal arguments that are used to resolve the tension that can arise between the state, the employers and the foreign worker.

Assessment of Fitness to Work - Dilemmas and Challenges

Senior Consultant and Head of Occupational Health Services , Tan Tock Seng Hospital


Dr. Lee Lay Tin is a Senior Consultant in Occupational Medicine, and Head of the Occupational Health Services (OHS) in Tan Tock Seng Hospital (TTSH), which she helped set up in 2009. Prior to joining the hospital, she was a senior specialist in OSH Specialist Department, Ministry of Manpower.

She currently runs the hospital’s Occupational Health Clinic, and also advises and formulates occupational health and safety policies and programme for the hospital. She is a panel member of the hospital’s Medical Board and advises the hospital and National Healthcare Group (NHG) Singapore on issues related to staff’s fitness to work in various situations including exposure to hazards, return to work and re-employment after retirement. She chairs the hospital’s Integrated Quality and Environmental Health and Safety committee which ensures that the hospital adopt the best practices and standards in EHS.

Dr. Lee also contributes in her professional capacity in occupational, environmental health and safety work to other organisations and at national level. She is a founding member and Vice-President of the Occupational and Environmental Health Society. Currently she is also involved in national level committees such as Healthcare and Capability Building committees (under Workplace Safety and Health Council), and Biosafety Training Technical Working Committee (under Ministry of Health). She is also active in teaching and training of doctors in Preventive Medicine Residency Programme (under NUHS) and Family Medicine Residency Programme (under NHG).


In workplaces, fitness to work for specific occupations is subjected to a medical examination by a primary care doctor whether trained or not trained in occupational health. Doctors are also required to certify whether employees are fit to work in certain hazardous environment, after sickness/ injury and in recent years after retirement. The talk discusses some of the technical, moral and ethical issues related to certification of fitness to work and the importance of changing some of the misconceptions.

Medical and Hygiene Surveillance in Singapore

Senior Consultant, Occupational Safety and Health Division (OSHD), Ministry of Manpower (MOM)


Dr Gan is an occupational physician who has been with the Ministry of Manpower (MOM) Singapore for more than 30 years. Her experience spans from enforcement, industry engagement, standard-setting, capability building, policy making to research in the area of workplace safety and health (WSH). She chaired the MOM Technical Working Group which developed the latest edition of the WSH Guidelines on Statutory Medical Examinations.

From 2014 to Jun 2018, Dr Gan was Executive Director of the Workplace Safety and Health Institute, leading the team to provide evidence-based, insightful and practical solutions to improve WSH outcomes.

She currently oversees various workplace health projects and represents MOM in national technical and advisory committees.


The statutory medical surveillance requirement has been in place in Singapore since 1985 for workers who are exposed to 17 hazards. For hygiene surveillance, the requirement has been in place for some 600 toxic substances since 1997. As at 2018, about 120,000 workers from about 2000 workplaces had benefitted from the medical surveillance programme. For the 550 workplaces which monitored for noise exposure and the 1100 workplaces which monitored for chemical exposures, these companies had benefitted from knowing whether additional control measures were required or not to prevent occupational diseases.

However, many more workplaces with health hazards are likely to be not under the medical and hygiene surveillance programs, thus increasing the risk of occupational diseases for their exposed workers. To mitigate this risk, the WSH 2028 Tripartite Strategies Committee had therefore called for an increased surveillance footprint for workplace health hazards in Singapore.
 Topic : Industry Workplace Safety & Health  

Ergonomic Risk Management in Semiconductor Industry

Senior EHS Program Manager at Micron Semiconductor Asia Operations Pte Ltd


Cathy Liu, MPH, CIH, CSP, earned her Bachelor of Science in Environmental Science at Renmin University of China, and Master of Public Health focusing on Environmental and Occupational Health at Saint Louis University, Missouri, United States of America. She is a Certified Industrial Hygienist and Certified Safety Professional. Cathy started her career as an Industrial Hygiene consultant with Golder Associates Singapore Pte Ltd. She provided industrial hygiene consulting services to various industries in the Southeast Asia region. In 2015, she joined Micron Semiconductor Asia Operations Pte Ltd as EHS manager, leading the site as one of the pilot sites in Micron network implementing ergonomic risk management system. Now, she is working as the Senior EHS Program Manager in Micron, mainly in charge of the development and deployment of Micron Global EHS Safety and Health programs and internal audit.


According to the 2017 Workplace Safety and Health Report, there were 799 occupational disease cases confirmed in 2017, out of which, 337 cases were work-related musculoskeletal disorders, with the inclusion of back injury cases due to ergonomic risks. With efforts from government agencies and EHS professionals to drive ergonomics awareness among industry workforce, enforce ergonomics related regulations, and deploy relevant guidelines and tools, more industries have joined in the Ergonomic Risk Management league.

In this presentation, I will be sharing the ergonomic risk management journey of Micron Technology Inc., a key player of the semiconductor industry:
Typical ergonomic risks in the semiconductor industry
Expectations from our customers
The challenges and difficulties we have encountered
Future plans and expectations for ergonomic risk management
Mr. Steven Verpaele

Towards a Management System for Safe Unloading of Sea Freight Containers

Industrial Hygiene Manager at Nickel Institute


Mr. Steven Verpaele has a Master of Science in environmental chemistry – Industrial Hygiene. He has conducted extensive research work on sampling and analysis for dust and elemental compositions in workplace atmospheres, especially silica. He has worked for 7 years as head of the environmental section at the University College of Ghent in the laboratory for occupational hygiene and 11 years as principal occupational hygienist for an External Company for Occupational Prevention and Protection. Currently, he is the industrial hygiene manager at the Nickel Institute (global association of leading primary nickel producers).

He is also founder and president of the Belgian Centre for Occupational Hygiene, a non-profit organization focused on research and laboratory services to industry regarding occupational hygiene exposure assessment. BeCOH has an MOU with Workplace Health Without Borders (WHWB) and provides free of charge analysis for OH projects.

He has more than 10 years’ experience as an expert in different ISO and CEN workgroups mainly focused on workplace atmosphere. As board member of the Belgian Society for Occupational Hygiene he is responsible for all training programs organized by different parties regarding occupational hygiene, is the link to the government as extraordinary member of the Belgian High Council for Prevention and Protection at Work, and is the Belgian representative for the EU-OH platform.


European legislation related to exposure to chemical agents is becoming stricter. REACH and CLP have ensured that more agents are classified as dangerous and there are also more agents end up on authorization and restricted lists. It is clear that the industry has to deal with this and exposure to chemicals is considered to be under control. The last few years, warehouse workers are worrying more and more about exposure to chemical agents. Deadly accidents with fumigated containers was the trigger but should we worry about that or should we be more aware about chronic exposure to a soup of chemicals?

Many production sites from where container sea fright transport to Europe is needed, are located in Asia. It is important to define clear objectives to develop a management system for safe unloading of sea freight containers. The objectives are, identifying the production facilities and their entire production cycle, collecting exposure data during production and identifying the release of agents immediately after production, when loading the containers.

It took about 6 years to reach all the predefined objectives. With all the gathered information it is possible to predict container air concentration of volatile substances on the unloading site (downstream) based on information at the production site (upstream). This algorithm is based upon site concentration measurements, lab experiments of the raw materials and unloading concentration measurements and can be made for a whole production factory and is independent on how many different styles the factory is producing.

The safe container unloading management system is based on an upstream limit value, what implies that if the concentration at production site is higher than the established limit value, the goods cannot be shipped by container or the container shall be ventilated on arrival at the unloading site. The above is a good example of occupational hygiene principles as root cause analysis is the main principle in risk assessment and managing the exposures.
 Topic : Health Hazards  

Nanoparticle Exposure Assessment in Singapore Digital Printing Industries

Occupational Hygiene Consultant at IOM Singapore


Mr. Sriram Prasath has extensive working experience as an Occupational Hygiene consultant and Researcher in the Asia Pacific region. He has worked in manufacturing, government organisations, institutions, food processing, construction and mining industries. He is involved in a wide variety of research projects, mainly focused on nanoparticle exposure assessment in digital printing industries and ergonomics risks while using tablets and mobile phones. He also provides consultancy support in the development of and implementation of safety, health and environmental management systems, risk assessment and hazardous area classifications.


Toner-based printing equipment (TPE), which includes laser printers and photocopiers, utilize several engineered nanomaterials (ENMs) to improve toner performance. TPE emit high levels of incidental nanoparticles along with ENMs. The research study assesses full-shift personal exposure of workers to TPE emitted nanoparticles, as well as temporal and spatial distribution of nano/aerosols in the workplace, especially as it relates to the contribution of background aerosols, outdoor air pollution, and other possible nanoparticle sources.

Exposure assessment on TPE included comprehensive characterization of nanoparticle size and number distribution, chemical composition, surface chemistry, and state of agglomeration and aggregation. These distributions were then linked to job-task descriptions spatial distributions and subsequently used in exposure estimation to the workers operating the printers. The preliminary conclusion from this in the study is that during majority of the scenarios, static measurements do not provide a good proxy for personal exposure.

Ventilation and Exposure Assessment for Downdraft and Semi-Downdraft Spray Booths

Senior Industrial Hygiene Consultant at Golder Associates Singapore


Mr. Saurabh Saini is a Senior Industrial Hygiene Consultant at the Golder Associates Singapore office. As a Certified Industrial Hygienist (CIH) practicing in the Asia region, he has been involved with carrying out exposure assessments for physical, chemical, biological and ergonomic agents in a variety of industry groups.

Saurabh has eleven years of consulting experience and established his knowledge and skills working in diverse workplace environments while developing and implementing local regulatory compliance programs; performing risk assessments; developing hazard control programs; leading training initiatives for aerospace, pharma, engineering, chemical, oil & gas, and manufacturing facilities and assisting with multi-stakeholder remediation projects.


Spray painting for large parts such as those encountered in aerospace or automobile industry are typically carried out for large parts in enclosed booths. In this case study, typical spray-painting process occurs in a semi-downdraft paint spray booth. During the painting process, conditioned ambient air is filtered and introduced into the booth through the roof. The air and the paint pass over the parts to be painted. The paint over-spray and solvent vapors and aerosols exit with the exhaust air from the painting area through the exhaust filters located in the booth. The ventilation system protects the employees working inside the spray booths from inhalation exposure to these chemicals through the use of semi-downdraft flow which transports these chemicals away from the breathing zone of the personnel. This ventilation system should also prevent the concentration of flammable vapors from being greater than 25% of the LEL inside the booth.

It was noted that there are no specific standards on flow velocities for such spray booths in this configuration. In general, most standards for ventilation – flow velocity are based on cross draft spray booths.

An assessment on the flow velocities and volumetric flow rates inside the spray booths was carried out in this case study. During the assessment, it was observed that the flow velocities inside the booths were lower than the design velocities for typical cross draft booths and also slightly lower in comparison to the most relevant international velocity standards for enclosed semi-downdraft spray booths.

The case study followed up with employee chemical exposure monitoring inside the booth to assess the concentration of spray-painting chemicals the employees are exposed to and the efficacy of the ventilation controls to prevent the build-up of these chemicals. Further approaches to protect workers such as personal protective equipment and to monitor exposure such as biological monitoring have been considered as future action items.

Working Safely and Securely

Director, National Public Health Laboratory, National Centre for Infectious Diseases


Assoc. Prof. Raymond Lin has extensive experience in all fields of clinical microbiology, laboratory medicine, safety and security. He is the Director of the National Public Health Laboratory, National Centre for Infectious Diseases as well as Head Microbiology, Laboratory Medicine, National University Hospital, and Senior Consultant (Biosafety) for the Ministry of Health (MOH). He is also a member of the Genetic Modification Advisory Committee (GMAC), and chair for the GMAC Subcommittee for Research on GMOs.

In his position with the MOH, Assoc. Prof. Lin chairs various biosafety technical committees and helped the ministry in developing the “National Standards for the Maximum Containment Facilities” and the National Biosafety Professional Training Programme.


Lapses of several high-profile international bio-incidents (e.g. discovery of smallpox vaccines in a renowned organisation, sending of live anthrax samples to laboratories) in recent years have placed laboratory biosafety, biosecurity, and biocontainment in the spotlight. These, together with the emergence/re-emergence of dangerous pathogens and advancement of modern biotechnologies have led to an increase of international efforts to improve awareness, promote safe pursuit and safe handling of life sciences research and dangerous pathogens, as well as optimization of oversight frameworks.

This presentation will provide an overview of the problems and challenges of laboratory safety and security, and the way forward.


Topic : Technology


Recent Advances in Air Sampling Technology

Head - Technical Consultant (Asia Pacific Region) at SKC Asia HSE Sampling Technologies Pte Ltd.


Dr. Ang Keng Been is the Principal Technical Consultant of the Asian Headquarters of SKC Incorporated.

With a wealth of international experiences, Dr. Ang has often been called upon as a scientific consultant to resolve complex and dynamic air quality challenges. His knowledge in air quality matters has seen him participate in several international and national technical forums.

An engineer by training, he believes in the engineering of smart solutions, in the service of people.

Air sampling is performed to ensure that workplace or environmental air is meeting regulatory standards, and to help professionals in the field of occupational hygiene assess employee exposure to airborne hazards.

As manufacturing processes evolve with technologies, new materials and more varied by-products are introduced to the workplace. Concurrently, sampling technologies are also evolving to meet these new challenges.

This session shall review the recent advances in air sampling technologies, so as to better assess new types of airborne contaminants (dust, bio-aerosols, gases/vapours, mixed-phase etc.) in the workplace.


Continuous Monitoring of Physical Parameters at the Workplace

Managing Director of Absolute Intrument Systems (Pte.) Ltd.


Mr. Eric Ng graduated from Singapore Polytechnic in 1990 with a Diploma in Electronics and Communication Engineering. In 2005, he acquired the Bachelor of Environmental and Occupational Health and Safety (BEnvOHS) from the University of Newcastle, Australia via PSB Academy, Singapore.

Mr. Ng has been providing acoustics related services and products and is also an ACTA certified trainer for noise related subjects. The company that he co-founded in 2007, Absolute Instrument Systems (Pte.) Ltd. is a supplier and service provider for environmental and workplace monitoring solutions. Another company that he co-founded, Absolute Laboratories is a SINGLAS ISO17025 accredited calibration laboratory for noise and vibration monitors. Abstract

Since 2007, Absolute Instrument Systems (Pte.) Ltd. has been installing continuously noise monitoring systems for construction sites, a requirement under National Environmental Agency.

Being able to monitor noise nearby construction sites, in real time, allows contractors to manage noise pollution issues, in addition to improvements in productivity and effectiveness.

Today the internet-of-things (IoTs) and the 4th industrial revolution is pushing boundaries of what real-time monitoring and ready access to information can achieve. This presentation will discuss some of the real-time monitoring solutions available to WSH professionals in carrying out monitoring and control strategies at the workplace.


Computational Modelling of Pollutant Dispersion in Urban Environments

Scientist at Institute of High Performance Computing


Dr. Ooi Chin Chun is currently a research scientist at the Institute of High Performance Computing, a research institute under Singapore’s Agency for Science, Technology and Research working in the area of computational fluid dynamics.

He is currently interested in the area of computational modelling for urban and environmental problems and has done some work in the past few years on simulating natural ventilation in the urban environment and understanding the dispersion pattern of both dilute materials and particulate matter.


In this presentation, I will briefly review the basics of computational fluid dynamics in the modelling of urban and environmental flows, illustrating how we can utilize such computational tools to understand the nature of urban airflows. I will then illustrate how we can further utilize this method to investigate potential issues such as pollutant dispersion and the characteristics of their spread in an urban/industrial setting, and more critically, to understand and evaluate how specific mitigation measures may fare relative to each other.

Prof. David Koh

Disruptive Innovations in Occupational Safety and Health

Distinguished Professor of Occupational Health and Medicine, Universiti Brunei Darussalam | Professor at SSH School of Public Health, National University of Singapore


Prof. David Koh qualified in medicine in Singapore and completed his postgraduate training in both occupational medicine and public health in Singapore and the United Kingdom.

He has worked in the National University of Singapore for over 25 years from 1985, where he served as:
Head of the Department of Community, Occupational and Family Medicine;
Director of the Centre for Environmental and Occupational Health Research, NUS, and
Founding program director of the National Preventive Medicine Residency program.

In 2012, Prof. Koh joined the PAPRSB Institute of Health Sciences of the Universiti Brunei Darussalam as its first Chair Professor of Occupational Health. He was appointed as Assistant Vice Chancellor from 2014 to 2018 and is currently a Distinguished Professor of Occupational Health and Medicine in UBD.


The work environment has seen rapid changes, necessitated by the need for innovation and productivity. The nature of work is evolving, with many tasks vulnerable to automation. At the same time, technology has become more pervasive, with increasing applications developed in robotics, machine learning and the artificial intelligence. Huge amounts of data are collected from many different sources, which can be used for predictive analytics. The generational change in the workforce also has implications on how we work.

The above factors, acting in concert, have caused disruption in OSH practice. We now see the utilization of disruptive technology such as automation, drone technology, Artificial Intelligence, wearables, Virtual and Augmented Reality in different OSH scenarios. For us to better prepare for such OSH disruption, we have to keep abreast of developments, embrace change, be aware of hype, and ensure that policy, regulations and ethics keep up with technology.

Topic : Chemical Hazards


Occupational Lung Diseases

Senior Consultant at Occupational Safety and Health Division (OSHD), Ministry of Manpower (MOM)


Dr. Lee Hock Siang is a Senior Consultant with the Occupational Safety and Health Division, Ministry of Manpower. He has more than 35 years of experience in occupational medicine with a special interest in occupational respiratory diseases. Dr. Lee has published numerous papers on occupational respiratory diseases and contributes his expertise as a Visiting Consultant to the Occupational Lung Disease Clinic, Department of Respiratory and Critical Care Medicine, Singapore General Hospital. He is an Adjunct Associate Professor to the Saw Swee Hock School of Public Health, National University of Singapore.

Occupational lung diseases are important in Singapore. Silicosis was the leading occupational disease among workers in the granite quarries in the 1970s and 80s. Today, there are no more granite quarries, but there is a significant risk of silicosis in certain processes in the construction industry and in the use of artificial stone. Asbestos exposure still occurs today from work involving existing asbestos present in old buildings and insulation in ships and machinery. Cases of malignant mesothelioma continue to increase as a result of past exposures and the long latency of the disease. Asthma and lung cancer can be caused by exposure to agents in the workplace. Because these diseases are common in the general population, the possible link to work is often not recognised. New chemical substances with unknown respiratory health effects are constantly introduced to the industry. Risk management, starting with a properly conducted risk assessment remains the cornerstone to prevent occupational lung diseases. Both the workplace hazards as well as the diseases they cause must be identified early in order to protect our workers and prevent these diseases.


Toxicological Risk Assessment - Characterizing Safety Risks of Chemicals in the Occupational Setting

Head of Regulatory Assurance (South-East Asia) at Lonza Specialty Ingredients


Mr. Khoo Keng-Meng received his PhD (Biochemistry) in 1999 from the National University of Singapore. He was awarded a Chevening Scholarship to study law in the UK and received his LLM with Distinction in Commercial Law from Aberdeen University, UK in 2003. He is a Registrant of the Australasian College of Toxicology and Risk Assessment (ACTRA).

He currently chairs the Cleaning and Material Protection sub-industry group in SMF and is a member of the National Mirror Working Group on ISO TC217, ISO TC8/SC2/WG5 and FMCG Working Group. In addition, he is a member of the ASEAN Cosmetics Association (ACA) Safety and Toxicology committee.

Prior to joining Lonza, he served in regulatory and toxicology roles in Diversey, Janssen and Johnson & Johnson Consumer (Asia Pacific).


Risk assessment is the systematic scientific evaluation of potential adverse health effects resulting from human exposures to hazardous agents or situations. The presentation will seek to introduce key concepts and methodology in a toxicological quantitative risk assessment. Emphasis will be laid on the identification of hazards and risk posed to humans in the occupational setting. Ultimately, the aim of a risk assessment is to provide the rational basis for public health decisions and actions aimed at reducing or eliminating the risk concerned.


No Time to Lose !

Branch Chairman (Singapore), Institute of Occupational Safety and Health


Mr. Darren Brunton is a Chartered Fellow of the Institute of Safety & Occupational Health (CFIOSH) and currently the IOSH Singapore Branch Chairman.

He is well-versed with working in high risk industries. With a 12-year career in the British Military and Commando Forces and an overall career within the commercial diving industry spanning from 1979, he has worked as a saturation diver, diving supervisor, client representative, diving system auditor, company auditor, safety representative and as a trainer for commercial diving and safety management courses, in addition to having worked offshore globally in regions such as the North Sea, UK, Malaysia, Brunei, China, Mexico, Argentina, Taiwan, Thailand, and Indonesia. Mr. Brunton established KB Associates Pte Ltd (KBA) based in Singapore in 2002, as a safety consultancy & training provider for the Offshore/Inshore Diving and Marine industries with a reach across all industry sectors.


Asbestos fibres, diesel fumes, silica dust and mineral oils – just a few of the 50-plus workplace substances linked to cancer. For millions of people across the world, working with these carcinogens is a reality of their daily job.

Many sectors and countries have already stopped or limited exposures to hazardous substances, but much more needs to be done. We can beat occupational cancer if we work together to control the exposure risks.

Whether you’re an employer or employee, industry body or policy-maker, safety and health professional or occupational hygienist, we all have a part to play if we want to call time on work-caused cancers.

IOSH launched its No Time to Lose campaign on 03 November 2014, hear what The Institution of Occupational Safety and Health are doing to raise awareness and help prevent occupational cancer now and for the future.