At 8:13 a.m. on Tuesday, the Nation Service reported an air quality alert in effect until 11 p.m. for Morris, Hunterdon, Somerset, Middlesex and Mercer counties.

An air quality alert was reported by the National Weather Service on Tuesday at 9:10 a.m. in effect until 11 p.m. for Western Chester, Eastern Chester, Western Montgomery, Eastern Montgomery, Upper Bucks and Lower Bucks as well as Delaware and Philadelphia counties.

The National Weather Service reported an air quality alert at 8:43 a.m. on Monday in effect until 11 p.m. for Northern Worcester and Southern Worcester as well as Middlesex, Essex, Hampshire, Hampden,