For many years laboratories have been testing OC pesticides and PAHs to trace levels. One of the challenges for industry is that every lab offers different LORs and chemicals (OCPs in particular) and that comparing results to regulatory limits was difficult across different levels of protection with no one method meeting all levels.
ALS had generally offered OC Pesticide LORs of 2-10 ppt (0.002-0.010µg/L) and PAHs at 5 to 20ppt depending on the matrix (e.g. drinking water or other clean matrices)
This allowed industry to meet ADWG however complying with ANZECC 99% or even 95% protection for fresh and marine waters was often out of reach. Industry also commented that the ALS Benzo(a)pyrene LOR of 0.005 µg/L was only half of the limit and that they would really like a better margin between the LOR and the guideline. This limited the monitoring of some pristine environments or provided a situation where any positive detect at LOR could immediately present as a guideline breach. This was less than desirable when assessing some POPs.
What's inside this EnviroMail?
- New ALS Super Ultra-Trace Capabilities
- LORs for select OC Pesticides Vs ANZECC
- Method and LOR information
- Precision, Accuracy and LORs for select OCPs and PAHs
- Reporting and LORs for select OCPs and PAHs
- Sampling Considerations, sample containers and test communication