How to Calculate a Character Polluting the Air Around Them?

[IDK3465]

Ok, this is a very specific question, but I'm unsure how to tackle it, and I'd like your guys' help:

When a character is summoned, the sky darkens and gains a brownish-orange hue, and everywhere seems to be covered in smoky fog, similar to the effects of real-world forest fires

The problem is, I don't know whether I should assume the total smoke released over a forest fire's lifetime, or divide by the time to get the smoke per second (even though the feat is far faster than a real-world wildfire), or estimate the mass of the smoke we actually see, even though that'd probably be a massive lowball. The point is, I don't know what to make of this feat, and some advice would REALLY help rn, so if anyone has any ideas, PLEASE tell me

 

[MSahla]

I think that you should not use the total output of a forest fire. That massively overestimates the feat. If you want something defensible, you should base it on the volume of air affected and the concentration needed to visibly darken it, then (optionally) convert that into a rate using the time the effect takes to appear.

But this is just me, though, so CGM or anyone can correct me.

 

[Voidnether]

I think it'd be best to just calculate the heat caused as that's going to be the only thing that's combat applicable in this context, cause it's catastrophe-inducing aura from what I'm seeing (idk if an Environmental Destruction rating is even possible here)

 

[IDK3465]

I think it'd be best to just calculate the heat caused as that's going to be the only thing that's combat applicable in this context, cause it's catastrophe-inducing aura from what I'm seeing (idk if an Environmental Destruction rating is even possible here)

The thing is, the character isn't actually heating anything, they're just creating enough smoke to make it SEEM like there was a forest fire.

 

[IDK3465]

I think that you should not use the total output of a forest fire. That massively overestimates the feat. If you want something defensible, you should base it on the volume of air affected and the concentration needed to visibly darken it, then (optionally) convert that into a rate using the time the effect takes to appear.

But this is just me, though, so CGM or anyone can correct me.

Ok, doing some digging, I found that the Air Quality Index value that makes the sky have a similar haziness to the feat appears to be around 175, which has a PM2.5 concentration of 89.7 ug/m3

Smoke from wildfires can get as high as 5 miles or 8.04672 km in the air
20000^2 * pi * 8046.72 = 1.0111807e+13 m^3

1.0111807e+13 * 8.97e-8 = 907029.0879 kg
It took around a second for the haze to fully set, so an omnidirectional speed of 20000 m/s

907029.0879/4 * 20000^2 = 9.0702909e+13 joules or 21.6785 Kilotons of TNT

 

[AyOgUyS]

Ok, doing some digging, I found that the Air Quality Index value that makes the sky have a similar haziness to the feat appears to be around 175, which has a PM2.5 concentration of 89.7 ug/m3

Smoke from wildfires can get as high as 5 miles or 8.04672 km in the air
20000^2 * pi * 8046.72 = 1.0111807e+13 m^3

1.0111807e+13 * 8.97e-8 = 907029.0879 kg
It took around a second for the haze to fully set, so an omnidirectional speed of 20000 m/s

907029.0879/4 * 20000^2 = 9.0702909e+13 joules or 21.6785 Kilotons of TNT

that seems incredibly high but maybe I'm stoobid

 

[IDK3465]

that seems incredibly high but maybe I'm stoobid

I mean, it's a weather feat, so somewhere in tier 7 makes sense to me