[Reno89519]

So, as to the DDT, guess we should not go fishing off the LA coast around Catalina Island. Why didn't they vacuum up the DDT back 10-15 years ago when it was discovered. Surely that would be technically acheivable with robotic equipment and suction hoses, suck of 90% of the liquid or something.

For the munitions, what ignore them or destroy them in place?

[Eagles6]

Because they, really, know that DDT is, both, harmless and beneficial?

[pfflier]

For the munitions, what ignore them or destroy them in place?

Not until we properly self flagellate over a common practice since men first went to sea.

[fini]

"Why didn't they vacuum up the DDT back 10-15 years ago when it was discovered."

As far as my limited research has found, DDT isn't the boogeyman that people try to make it. People are immune to it, but it is deadly to insects. After WWII we basically fumigated Europe to prevent insect infestations- lice and bed bugs. DDT was actively used in mosquito control in the 1960s. I remember when the "Bug trucks" used to drive through the streets gassing the neighborhood. Many thousands of people die of malaria and other serious diseases, because they are not allowed to use DDT.

In this instance, it is probably safer to let it deteriorate in place than to try to remove it. I do not know if DDT affects marine animals, but why possibly allow it to flow in currents, due to leaking barrels being raised from the ocean floor.