Canadian wildfires are causing the worst air in the US in cities like Chicago and Detroit

By MELINA WALLING, MELISSA WINDER and TRISHA AHMED
Associated Press

CHICAGO (AP) — Drifting smoke from the ongoing wildfires across Canada is creating curtains of haze and raising air quality concerns throughout the Great Lakes region, and in parts of the central and eastern United States. The Environmental Protection Agency’s AirNow.gov site showed parts of Illinois, lower Michigan and southern Wisconsin had the worst air quality in the U.S. on Tuesday, and Chicago, Detroit and Milwaukee had air quality categorized as “very unhealthy.” A National Weather Service meteorologist says fires in northern Quebec and low pressure over the eastern Great Lakes are sending smoke to Michigan, Wisconsin and Illinois.