This course provides knowledge and skills necessary to understand the impact of chemicals in the environment. Specific areas covered include: the major toxicants, both organic and inorganic: sources, pathways and fate of major toxicants; specific effects on organisms (including humans); physiological and biochemical principles of toxicity testing; LD50 & NOEC; risk assessment of soils and water; environmental quality standards and toxicity quotients. This course can be taken individually or combined over a period of time towards a Postgraduate Certificate of Professional Development.