My heart goes out to all who are suffering because of these fires. You are close by and in my thoughts and prayers. -A
The Associated Press, posted July 3, 2008
Hundreds of lightning-sparked wildfires have turned the air of Northern California into an unhealthy stew of smoke and ash, forcing the cancellation of athletic events and other outdoor activities.
Health advisories urging residents to stay indoors to limit exposure to the smoky air were issued Saturday from Bakersfield north to Redding, a distance of nearly 725 kilometres.
Air pollution readings in the region are two to 10 times the federal standard for clean air, said Dimitri Stanich, spokesman for the California Air Resources Board.
Some areas are experiencing the worst air quality on record, with the smoke hanging down to the ground like a fog.
Air quality agencies are especially concerned about small-particle pollution. The tiniest particles can penetrate past the body's immune defences, travelling deep into the lungs and the bloodstream.
"When you have it on the scale we are seeing now, it is very dangerous to the general public health,'' Stanich said. "This is a very serious problem.''
Changing weather brought smoke-clearing breezes and brief relief to some areas Saturday, but it could also bring lightning storms similar to the ones that ignited fires across Northern California a week ago.
Thunderstorms could strike anywhere in the northern Sierra Nevada or the northern Central Valley on Saturday night, said National Weather Service forecaster Johnnie Powell in Sacramento.
The thunderstorms could also bring a small amount of much-needed rain, he said. The front was expected to pass by Sunday, setting up a second week of abysmal air quality.
The renewed threat of dry lightning and stiffer breezes that could stir the wildfires led fire officials to declare a "red flag warning'' -- meaning the most extreme fire danger -- until 5 a. m. Monday for Northern California.
On Saturday, President Bush issued an emergency declaration for California and ordered federal agencies to assist in firefighting efforts in many areas.Gov.Arnold Schwarzenegger had made the request on Friday.
More than 17,000 firefighters, 1,500 fire engines and bulldozers and more than 80 helicopters and aircraft were fighting more than 1,000 fires Saturday, said state emergency services spokesman Kelly Huston.
"The summer has just begun, and fire conditions will only get tougher,'' Ruben Grijalva, director of the California Department of Forestry and Fire Protection, warned in a weekly radio address on behalf of the governor.
The fires have destroyed 47 structures and injured 85 people and continue to threaten nearly 10,000 homes, businesses and buildings, according to his department.
A lightning-sparked wildfire in the Big Sur region of the Los Padres National Forest has burned 108 square kilometres and destroyed 16 homes. The blaze, which was only three per cent contained, has forced the closure of a 19-kilometre stretch of coastal Highway 1 and driven away visitors at the peak of the tourist season.
Farther south in the forest, a wildfire that started three weeks ago has scorched 238 square kilometres of remote wilderness. It was 80 per cent contained Saturday.
Stanich, of the Air Resources Board, advised people to stay inside and keep activity to a minimum. Children, the elderly and people with heart and lung problems are particularly vulnerable, but pollution levels are high enough to affect healthy adults.
Health officials have reported an increase in people complaining of eye and throat irritation and coughing. The poor air can also trigger asthma attacks and bronchitis.
Some veterinary offices said pet owners were bringing in dogs and cats with symptoms ranging from weepy eyes and irritated skin to difficulty breathing or unusual lethargy. Vets were advising that pets remain inside until the smoke clears.
Smoky air cancelled this weekend's 160-kilometre Western States Endurance Run for the first time in its 31-year history. The decision disappointed 370 runners who had travelled from as far away as Africa for the annual race from Squaw Valley at Lake Tahoe to Auburn in the Sierra foothills.
In Sonoma County, the limited visibility kept the Energizer Bunny and dozens of other colourful hot air balloons from lifting off during Saturday's Hot Air Balloon Classic in Windsor.
Cities also closed public pools, cancelled softball games and called off July 4 fireworks displays. Schwarzenegger urged residents not to buy fireworks this year and said local governments should consider an outright ban, though he would not impose one statewide.
Near Las Vegas, a small plane crashed in a forested area, killing four people and touching off a wildfire that is threatening about 40 homes, said Ian Gregor, spokesman for the Federal Aviation Administration. Authorities recommended that residents evacuate.
In Arizona, crews fighting a blaze in the Phoenix suburb of Laveen worked to establish a line at a river crossing. About 50 residents of 18 homes were ordered to evacuate in the afternoon but were being allowed to return Saturday night, said Bill Watt with the state Foresty Division. The fire had almost doubled in size in a day and consumed nearly 21 square kilometres, but was about one-third contained, officials said.
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