P2.5 in the open oceans

[auweatherwatcher]

Just wondering why the the open oceans often have relatively high P2.5 concentrations compared with the land? is it just sea salt or something?

[petra.pik]

Hello @auweatherwatcher, you are right, it's a salt spray over the oceans.

You can read more on this here – https://en.wikipedia.org/wiki/Particulates.