Climate

Allergy season in Northwest Arkansas increased by 17 days on average between 1970 and 2021, per an analysis from Climate Central, a nonprofit climate news organization, Alex Fitzpatrick and Alice Feng report.

• That's based on the number of days between the last freeze each spring and the first freeze each fall — the annual window during which seasonal allergy sufferers are most likely to rely on an antihistamine.

Air quality in the Northwest Arkansas metro area, as measured by fine particle pollution, has improved since 2012, Axios' Alex Fitzpatrick and Kavya Beheraj report.

Driving the news: Monday kicks off National Air Quality Awareness Week.