Hmmm okay, I’m not disagreeing but here’s my view on the Pollution rates-
Where I live, in my province, we are not totally quarantined, like it’s not a must. People around where I live tend to drive around just to get out of the house (because technically they are self isolated/quarantined in their cars). And city busses are still running no matter how many people go on them, they still run (most of them anyways).
Also, since people are at home they are more likely to use more garbage whether it be from an activity to pass the time (like arts and crafts) or simply binge eating junk food.
This is just my view on the Pollution rates-, feel free to go against it and state your reasonings, I would love to hear to understand better where you’re coming from! 