Heat, poor air quality expected to linger this week

SALT LAKE CITY — Summer is hanging on to Utah with a firm grip, keeping temperatures in the 90s throughout the northern half of the state and maintaining triple-digit heat in the Dixie region.The heat is expected to last through the work week and is helping fuel unhealthy air quality conditions, especially for sensitive populations.While northern Utah can't compare to the intense heat wave stifling California, the temperatures are well above normal — by 10 degrees — at a time w