Contaminated Land
JBS&G is an industry leader in dealing with all facets of Contaminated Land.
Groundwater Remediation
Experts in 'immediate response' groundwater remediation measures.
Assessment and Approvals
Our experienced approvals experts and engagement specialists deliver large mining, property and infr...
Auditing and Compliance
Accredited in-house auditors covering all applicable state and territory auditor schemes.
Hygiene and Hazardous Materials
If you do a job, do it properly.
Due Diligence and Liability
Rapid response with pragmatic, commercial, expert advice tailored to address the level of risk and y...
Fire Management Planning
Our highly accredited and experienced Fire Management Planning team are leaders in the development a...
Our stand-alone strategic advisory division - JBS&G's strategic advisory division
Digital and Creative Solutions
Effectively communicate your project story to build stakeholder involvement, lower risk and strength...


Sim Ooi

Dr Sim Ooi is a toxicologist with 30 years of experience and over 15 years of that in managing and assessing health and environmental risks associated with chemical exposures at workplace, contaminated sites and industrial facilities for public and private sector clients in Australia, New Zealand and Southeast Asia.

Sim is a risk specialist with extensive experience in health and environmental risk assessment, the application of risk-based approaches to assessment and the management of contaminated lands and waters, chemical toxicity assessment, chemical fate and transport modelling (involving all media: soil, water and air), vapour intrusion risk assessment, risk management, regulatory compliance and project management.

Areas of Expertise

  • Risk Assessment and Management
  • Toxicology