Introductory RA

What is a contaminated site?

Who does what?

Why is it important?

What is risk management?

Risk assessment fundamentals

Risk assessment methods

Limitations of risk assessment

What are RA tiers?

Framework

Initiation 

Problem Identification

Receptor Characterisation

Exposure Assessment

Toxicity Assessment

Risk Characterisation

RM Decisions

XYZ Example

Resources

Glossary

FAQ's

What should I do if I have contaminated land?

There are various responsibilities that fall to landowners and councils.

What is BTEX?

BTEX are chemicals associated with petroleum products. For more information, follow this link.

Why does this website mostly concentrate on BTEX and CCA?

For historical reasons. Much of the website is also applicable to other contaminants.

Who does toxicological testing in New Zealand

Landcare Research, Centox and NIWA and various other agencies.  Follow this link for a list of testing facilities.

Is there any New Zealand specific toxicity data?

Yes, Landcare Research and NIWA have done some experimental studies. Information on these experiments can be found here.