Maricopa County also requires a “special blend” which makes it next to impossible to import from elsewhere, and we get socked extra during what the rest of the country would call Spring and Fall.
Yes, just because Biden admin lowered the threshold for certain air pollutant.
According to state senate hearing, there is no way, we can ever reach that threshold during our hot days, even if we ban cars in AZ altogether. The pollution from China and CA is enough to trigger alarm now.
But we have to try! And pay!