Asked by Meg

Sediment cores measured for containment levels have the highest levels of PCB's from the early 1960's. True or false
I think this is true? right? Help

Yes, it is true in most cases. An examp-le is shown at
http://pubs.usgs.gov/circ/circ1171/html/cores.htm

The reason is that PCB bans and restrictions on disposal began to take effect in the late 1960's.

Answers

There are no human answers yet.
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions