never found a single one in (many) hours gameplay…
(but also never searched when gas is still active)

@quallensaft You don't need to go dynamic toxic zone, because dynamic toxic zone have same loot as without toxic gas.
You can find vials on Livonia everywhere where explosives spawning and in Underground bunker(highest chance). Lifetime is 900 sec. (15 min).
Vials are not spawning in Chernarus on public servers.
Here is example, vial can spawn in cyan/aqua color spawn points too.

„Vials are not spawning in Chernarus on public servers.“

That‘s why I never found one… But how should anybody know that fact? :-D

@quallensaft, maybe it's the same as not knowing that dynamic toxic zones don't spawn better loot and not chem vials at all.
We are all engaged in a continual learning process.

In T170089#2403705, @Geez wrote:

Hello Jordi435.
We have tested this internally and the grenades do spawn.
Regards,
Geez

Well, I did some further testing and I can now indeed confirm that they do spawn, so you’re right there :) The only problem is that they’re now already gone by the time the gas has disappeared…
I visited some active dynamic gas zones again but this time wearing a full NBC suit and gasmask. I went in the gas and confirmed that there were PO-X vials laying around but I didn’t pick them up, instead I left the gas zones and waited just outside of them. When the gas had disappeared I went back immediately and came to the conclusion they were already despawned.
Since this hasn’t been mentioned in the changelog, I do consider this as a bug.

@Jordi435 dynamic toxic zone have lifetime 35 min. and PO-X vial have lifetime 15min. Vials can despawn twice in dynamic contaminated area.
@Geez can you confirm or deny that the dynamic contaminated areas affects loot ?

In T170089#2404690, @raxto wrote:

@Jordi435 dynamic toxic zone have lifetime 35 min. and PO-X vial have lifetime 15min. Vials can despawn twice in dynamic contaminated area.
@Geez can you confirm or deny that the dynamic contaminated areas affects loot ?

The despawn time is what is in the xml described (and that‘s law in game).
It seems it‘s no bug, it is just a lag of information and nobody knows what is intended and what not in the game. So some users of course create tickets (can not find bla bla…).

• is it intended that they only spawn in Livonia (raxto is telling so)
• is it intended that they only spawn in dyn. gas zones
• is it intended that they despawn before gas disappaer

Questions over questions… Only devs know what‘s right as long there is no fact-sheet how everything „should“ work and everybody could look at.

@quallensaft

1. I am only reproducing what's in game files (xml) - (see the images below)
2. it was said multiple times on DayZ streams, that dynamic contaminated areas not changing loot.

Chernarus (stable+exp):

Livonia (stable+exp):