I'd love to jump in as well.
There are serious concerns about long-term monitoring as well. When we can't accurately track where these containers are and we don't know where the load of chemicals will eventually spill, it's almost impossible for us to engage in any long-term monitoring and to fully understand, from a scientific perspective, what the ramifications of that chemical being in the aquatic environment will be. Until we have that information, we can't categorically say what is or isn't going to happen, from a scientific perspective.
Personally, I find it unacceptable that we are accepting that a certain level of chemical pollution is okay in our waters.