A haze hangs over the Edmonton river valley in Edmonton, Alberta on Friday, July 13, 2012. The haze was caused by smoke blowing in from wildfires burning north of Edmonton.
Credits: AMBER BRACKEN/QMI AGENCY
EDMONTON _ Air quality in Edmonton was expected to marginally improve Sunday after wildfires north of the city blanketed the region with a layer of smoke.
Smoke from wildfires covering thousands of hectares blew into the city Thursday, forcing Alberta Health Services to issue an air quality advisory.
The province's air quality health index rose steadily Friday, hitting a high of nine out of 10 points, but tapered off to five by late Saturday afternoon.
The site was forecasting an air quality level of three for Sunday.
Alberta Health Services hasn't recorded a noticeable increase in patients being admitted to emergency rooms, but calls to the province's health hotline have spiked, said spokesman Kerry Williamson.
The air quality advisory remains in effect.