The air quality at the vacation hotspot of Lake Tahoe has become the worst in the world after local wildfires.

Data from , a company that sells home air quality monitors, shows that the air quality index at 530 for Lake Tahoe on Wednesday - by far the worst in the world. 

An air quality index of between zero and 50 is considered clean and healthy, while 51-100 is considered moderate, and anything from 101 upwards is considered potentially dangerous. 

Meanwhile, the federal air-quality data site AirNow reported its index - which runs on a different scale than Purple Air - showed South Lake Tahoe with air quality levels at 422 on a scale from 0-500 on Wednesday, an alarming and 'hazardous' number.  

Stunning photos from Lake Tahoe showed the dense, orange haze hanging above the pristine freshwater mountain lake caused by the massive 126,182-acre Caldor fire south of it.

Ash rained down and tourists ducked into cafes, outdoor gear shops and casinos on Lake Tahoe Boulevard for a respite from the unhealthy air.  

The Caldor Fire has now moved within 20 miles of Lake Tahoe, eating its way through rugged timberlands and 'knocking on the door' of the basin that straddles the state line with Nevada, California's state fire chief Thom Porter warned.

Porter said that, since 2007, a major wildfire has not penetrated the Lake Tahoe Basin where tourists typically visit to swim and hike, and relax along the lake's calm shores or take their chances gambling.

He added optimistically that he did not believe the fire would reach the lake.  

South of Tahoe, Rick Nelson and his wife, Diane, had planned to host a weekend wedding at Fallen Leaf Lake, where his daughter and her fiancé had met. However, the smoke caused most of the community to leave. The sun was an eerie blood orange, and the floats and boats in the lake were obscured by haze Tuesday.

In the end, the Nelsons spent two days arranging to have the wedding moved from the glacial lake several hours southwest to the San Francisco Bay Area.

'Everybody's trying to make accommodations for the smoke. And I think it´s becoming a reality for us, unfortunately,' Diane Nelson said. 'I just think that the smoke and the fires have gotten bigger, hotter and faster-moving.'

Climate change has made the West warmer and drier in the past 30 years and will continue to make the weather more extreme and wildfires more destructive, according to scientists.

Although there were no evacuations ordered for Lake Tahoe, the thick haze closed schools for two days in Reno, Nevada, which is about 60 miles from the fire.

The school district that includes Reno reopened most schools on Wednesday, citing improved air quality conditions. 

However, the Washoe County School District's schools in Incline Village on the north shore of Lake Tahoe remained closed, the district said in a statement.

The Caldor fire has destroyed at least 461 homes since August 14 in the Sierra Nevada southwest of the lake. It was 11% contained and threatened more than 17,000 structures.

The western side of the blaze continued to threaten more than a dozen small communities and wineries. 

On the fire's eastern side, crews bulldozed fire lines, opened up narrow logging roads and cleared ridgetops in hopes of stopping its advance, fire officials said.

More than 2,500 firefighters were on the line and more resources were streaming in, including big firefighting aircraft, fire officials said.

Meanwhile, California's Dixie Fire, the second-largest in state history at 1,148 square miles was burning only about 65 miles to the north. 

New evacuations were ordered after winds pushed the blaze to the northeast on Wednesday, as flames crossed State Route 44 and headed toward campgrounds near Eagle Lake.

The Dixie Fire, which broke out July 13, was 43% contained. If you have any queries relating to the place and how to use สล็อต 918kiss, you can get hold of us at the web page. At least 682 homes were among more than 1,270 buildings that have been destroyed.

In the southern Sierra Nevada, there was growing concern after the French Fire expanded near Lake Isabella, a popular fishing and boating destination.

'The fire really made a big push and put up a huge column of smoke,' fire spokesman Alex Olow said Wednesday. Because flames were still active, assessment teams have been unable to get into neighborhoods to see if any homes were damaged, he said.

About 10 communities were under evacuation orders. The fire has blackened 32 square miles since August 18.

Nationally, 92 large fires were burning in a dozen mainly Western states, according to the National Interagency Fire Center in Boise, Idaho.

Northern California has experienced a series of disastrous blazes that have burned hundreds of homes, and many remain uncontained.

On Tuesday, President Joe Biden declared that a major disaster exists in California and ordered federal aid made available to local governments, agencies and fire victims in four northern counties ravaged by blazes dating back to July 14.