The Mercury News

Hazardous levels of smoke are spreading across the state — and into other states.

Air district officials have called a “Spare the Air” alert for Wednesday, but the smoke is much worse between Sacramento and Oregon, and drifting into other states

- By Paul Rogers and Anna-Sofia Lesiv

Major wildfires burning across California are spreading hazardous levels of smoke across the West, turning skies across the Bay Area into what’s becoming the Summer of 2018’s familiar hue: sun-streaked gray.

On Tuesday, the National Weather Service office in Boise, Idaho, released a map showing how the smoke is expected to spread through Wednesday, well into Canada and deep into Colorado. Smoke across California led to air quality advisories in the Sierra and Central Valley.

The Bay Area Air Quality Management District extended an air quality advisory through Thursday, urging people who smell smoke to stay inside with windows and doors closed and set air conditioni­ng systems in their homes and cars to re-circu-

late to prevent outside air from moving inside.

The thick gray obscured foothills throughout the Bay Area and raised the gloomy prospect of smoke fouling major music festivals this weekend with Outside Lands set for San Francisco and the Jazz Summer Fest in downtown San Jose.

“We’re hoping the air quality doesn’t affect people’s desire to go outside,” said Vanessa Burchell, an employee at The Glasshouse, an event venue for San Jose’s jazz festival, which starts Friday.

As of mid-day Tuesday, at least 16 major fires were burning across the state, with the largest being the Mendocino Complex Fire in Lake County, the Carr Fire near Redding and the Ferguson Fire near Yosemite.

By Tuesday morning, the Mendocino Complex Fire, burning mostly in grasslands around Clear Lake, had charred 290,692 acres — an area larger than the cities of San Jose, San Francisco, Oakland and Sacramento combined — making it the largest wildfire in recorded California history.

Hazardous levels of soot in the air are a large part of the reason that national parks officials announced Sunday that Yosemite National Park would remain

closed indefinite­ly while fire crews continue to battle the Ferguson Fire.

The Bay Area Air District first called a “Spare the Air” alert on Monday, urging people to drive less, ride public transporta­tion, refrain from outdoor barbecues

and take other measures to limit air pollution.

Ton Flannigan, a spokespers­on for the Bay Area Air Quality Management District, said that temperatur­es pushing 90 degrees Wednesday and winds out of the north will switch the

region’s air quality to unhealthy. Inland areas such as Livermore, the Santa Clara Valley and parts of the East Bay like Walnut Creek will be the most adversely affected by the Mendocino Complex Fire smoke.

High levels of soot in the air, called particulat­e pollution, can exacerbate breathing difficulti­es for people with asthma and other respirator­y problems. It can also increase the risk of heart attacks and other ailments.

“I can already tell the difference,” said Paul Parson, a Doordash delivery man who said the smoke combined with his asthma has made it particular­ly hard to jog outdoors. “The air is much thicker, it’s harder to breathe.”

 ?? NHAT V. MEYER — STAFF PHOTOGRAPH­ER ?? A view of downtown San Francisco from Hayward shows the city shrouded in fog.
NHAT V. MEYER — STAFF PHOTOGRAPH­ER A view of downtown San Francisco from Hayward shows the city shrouded in fog.
 ?? NATIONAL WEATHER SERVICE ?? Smoke map of the California fires.
NATIONAL WEATHER SERVICE Smoke map of the California fires.
 ?? ARIC CRABB — STAFF PHOTOGRAPH­ER ?? The sun rise is photograph­ed through the leaves of a palm plant on Tuesday in Castro Valley. Smoke in the air from a number of fires in Northern California creates a red sky as the sun rises.
ARIC CRABB — STAFF PHOTOGRAPH­ER The sun rise is photograph­ed through the leaves of a palm plant on Tuesday in Castro Valley. Smoke in the air from a number of fires in Northern California creates a red sky as the sun rises.

Newspapers in English

Newspapers from United States