Investigations Pregnant Women's Blood Pressure Registers Every Smoke Day. A Federal Rule Lets States Erase Those Days From the Record.
On heavy smoke days, adults' systolic pressure ran nearly 4 mmHg higher; across eight southwestern states, gestational smoke exposure raised the odds of gestational hypertension 12 percent. Since 2016, regulators have won EPA approval to erase wildfire smoke from the Clean Air Act record in more tha
By Sarah Okonkwo · July 28, 2026