By Tom Spears, Ottawa Citizen, July 13, 2015
Haze cut the visibility Monday, but it was mostly just natural summer humidity,
not pollution. Ontario’s Environment Ministry showed good air quality across the
region as the temperature reached 29.8 C after two straight days above 30. (The
high was 31 on Saturday and 30.5 on Sunday.) via
A hot, hazy — but clean — day in the national capital | Ottawa Citizen.