OMAHA, Neb. (AP) — Eastern Nebraska health officials are warning that smoke from July Fourth fireworks could create air quality issues and trigger reactions in those sensitive to pollutants.

The Douglas County Health Department says the concern is greatest this weekend through Wednesday, the day after Independence Day.

Fireworks smoke may cause breathing to be difficult for individuals with asthma or other heart or lung diseases, the elderly, very young children, and pregnant women.

Health director Dr. Adi Pour says those people can minimize the risk by avoiding strenuous outdoor activity and limiting time spent outdoors.”