Dry, hot conditions and lightning strikes sparked at least seven fires in the Reno-Sparks area Sunday, while smoke from fires in California continued to blow into the Reno area.

The air quality was listed as moderate range for pollution, a spokeswoman for the Washoe District Health Department said, with no change likely until firefighters get more containment of hundreds of fires in the neighboring state.

The prevailing wind in Northern Nevada during the summer is from the west, National Weather Service officials said.

The largest fire, the Chalk Fire, was deemed under control in the late afternoon Sunday after burning about 20 acres 5 miles northeast of Virginia City on the northeast side of Tibbe Peak.

Firefighters from Reno, Bureau of Land Management and the Nevada Division of Forestry battled the fire in an area covered with pinion pine and juniper pine trees.

Two single-engine air tankers also helped contain the fire, as well as two 20-person hand crews.

"The single-engine air tankers really helped on that one," Sierra Front Interagency spokesman Mark Struble said. "They nailed it."

About 100 lightning strikes in Northern Nevada between 2 and 5 p.m. kept Nevada firefighters busy:

# Lightning strikes after 5 p.m. along the border of Storey and Lyon counties started three to four fires on private lands, according to the Sierra Front. The fires broke out about 7 miles southwest of Fernley. There was no report of resources that were threatened.

# Units from the Reno Fire Department responded and contained a fire in Antelope Valley about 3 p.m.

# A tree was struck by lightning in a remote area of the Virginia Range east of Virginia City. BLM smoke jumpers were sent to fight the blaze.

# A small brush fire in Lyon County, the Peru Fire, had been contained, although there were no reports on the amount of acreage burned.

# Four BLM smoke jumpers were sent to battle the 5-acre Sutcliffe Fire in remote hills west of the Pyramid Lake Indian Reservation.

# Three fire engines and a helicopter were sent to battle the Cedar Fire in the Humboldt-Toiyabe National Forest, approximately 10 miles northeast of Mono Lake near Highway 167 and the Nevada-California state line.

Air quality was moderate Sunday and is forecast to be the same today with light smoke and haze.