Occupational Hygiene
Occupational Hygiene
Evaluating and controlling health hazards in the working environment with the objective of protecting worker health and well-being and safeguarding the community at large.
Environmental Monitoring Services
Environmental Monitoring Services
Assessment of the quality of the environment in order to control the risk of pollution.

Ensuring the health and safety of South Africa's workforce

Occupational Hygiene Cape Town Services

Welcome to OHCT Services

About Us

OHCT Services is a Cape Town based consultancy providing Occupational Hygiene and Environmental Monitoring services of the highest caliber. With more than 10 years in the field, we aim to build long term partnerships with our clients in order to establish trust-based communication and a holistic understanding of our clients' current and future requirements.


Click below to see a full list of our accreditations and memberships.

This is how we can assist you

OHCT Services offers a full suite of professional occupational hygiene solutions tailored to the needs of our clients and industries, big or small.

Occupational Hygiene Risk Assessments

Businesses have a legislated duty to ensure, as far as is reasonably practicable, that their staff and other stakeholders are not exposed to any health and safety risks that may arise from the nature of their business. 

Heat Stress

Operations involving high air temperatures, radiant heat sources, high humidity, direct physical contact with hot objects, or strenuous physical activities have a high potential for inducing heat stress in employees engaged in such operations. OHCT Services will assist your company in the development of a Heat Stress Program to include the evaluation of heat stress levels and the employees work practices to minimize the effects.

Ventilation and Indoor Air Quality Surveys

OHCT Services uses state of the art equipment and technology, to evaluate a broad range of air quality parameters in the building environment. Real time instrumentation, with data logging capability, allows detailed investigation of daily variations in building air quality. From basic thermal comfort parameters such as temperature and humidity through to potential atmospheric contaminants such as carbon monoxide, carbon dioxide, VOCs – OHCT Services can provide assessment of indoor air quality and practical recommendations for ensuring ‘healthy buildings’.

Illumination Surveys

Every employer shall cause every workplace in his undertaking to be lighted in accordance with the illuminance values specified in OSH Act Environmental regulations: Provided that where specialised lighting is necessary for the performance of any particular type of work, irrespective of whether that type of work is listed in the Schedule or not, the employer of those employees who perform such work shall ensure that such specialized lighting is available to and is used by such employees.

Ergonomic Surveys

Poor working postures, repetitive tasks and heavy workloads can lead to increased risk of workplace injuries. An ergonomic workplace assessment can identify these risk factors by using a variety of data capture and risk assessment tools. By undertaking an ergonomic workplace assessment, OHCT Services can assist you reducing the risk of injuries and accidents to your employees, improve productivity and improve organisational wellbeing.

Asbestos Risk Assessments

This type of survey is non-intrusive and is undertaken during normal occupancy to identify and then manage all reasonably accessible asbestos containing materials.

Cold Stress

Maintenance of thermal comfort is important to ensure a safe, healthy and productive workplace. When the temperature becomes too cold, employees start to experience discomfort of a subjective nature, but eventually may experience physical problems that impair health and productivity. Every employer should have a Heat and/or Cold Stress Survey conducted at their premises as required in terms of Sections 2(1) and 2(4) of the Environmental Regulations for Workplaces.

Environmental Ambient Air Monitoring

OHCT Services will provide a comprehensive Data Collection, Verification and Reporting Service that complies with National. Environmental Management: Air Quality Act 39 of 2004 (NEMAQA) requirements

Environmental Noise Surveys (Boundary Monitoring)

In terms of the South African National Standards – (The measurement and rating of environmental noise with respect to land use, health, annoyance and to speech communication – (SANS 10103:2004)) noise levels at the perimeter of any factory may not exceed certain values and depend on the area (CBD, industrial, rural, suburban etc.) and on time (day, night or weekends).

Asbestos Monitoring Surveys

Asbestos air monitoring tests for respirable asbestos fibres in the air to assist in assessing exposure and the effectiveness of control measures. This is generally undertaken where asbestos containing products are in a poor condition, potentially liberating asbestos fibres into the air, or where asbestos containing materials are being removed. For the purposes of asbestos air monitoring, only respirable asbestos fibres (those fibres less than 3 μm wide, more than 5 μm long and with a length to width ratio of more than 3 to 1) are considered to be a risk.

Noise Monitoring Survey

If your workplace exposes employees to loud noise for extended periods of time, it’s important to have a noise management plan in place to minimise risk while complying with Workplace Noise Regulations. Exposure to noise in the workplace is one of the leading causes for workers’ compensation claims. Protecting employees through an adequate noise management plan can reduce and even eliminate claims by measuring workplace noise exposures and ensuring that there are adequate, documented controls to ultimately conserve hearing.

Hazardous Chemical Substance Surveys

The Regulations for Hazardous Chemical Agents, 2021 requires employers to control substances that have the potential to harm worker’s health, such that exposure to hazardous substances is prevented or reduced. Exposure assessment is often necessary to determine the nature of any controls that may be required and to make sure that the Oeccupational exposure limit (OEL) for a given substance is not likely to be exceeded.

Industries recently serviced

Occupational Hygienists provide you the data you need for informed decision making regarding your workplace environment.

Need an assessment for your workplace?

We will gladly come out to your site and provide you with a quotation.