How to pronounce“petagrams”in English

But it's-- Yeah, petagrams of carbon and petagrams of carbon per year are the units.

where there was only about, say, 3 petagrams carbon as POC.

The particulate organic pool in the ocean is so small, only a few petagrams, that it wouldn't have a big impact.

And a petagram is 10 to the 15th grams.