Did you read the article? It prefaces with Trump's false claim and provides proof of his lying.
> There was no follow-up article when air pollution decreased more than 40% the next year.
Perhaps Trump did not repeat that specific lie next year?
> Nor was there an article when pollution spiked 76% from the Trump-administration low during the Biden administration.
I've seen plenty of articles about how air pollution was at record lows during COVID.