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SAN DIEGO (KGTV) -- Officials with two of Southern California's largest schools districts have announced closures effective Monday, March 16, as a precautionary measure to prevent the spread of the Coronavirus.The Los Angeles Unified School District and the San Diego Unified School District said Friday that campuses are expected to reopen April 6.RELATED COVERAGE: What's been canceled, postponed in San Diego, nationally due to coronavirusThe closures will keep a combined 750,000 students off campus for three weeks heading into spring break. LAUSD and SDUSD join numerous other school systems taking similar measures as the number of COVID-19 cases continue to rise.Superintendent Austin Beutner of Los Angeles and Superintendent Cindy Marten of San Diego have issued the following joint statement: “California has now entered a critical new phase in the fight to stop the spread of the Covid-19 pandemic,” they said. “There is evidence the virus is already present in the communities we serve, and our efforts now must be aimed at preventing its spread. We believe closing the state’s two largest school districts will make an important contribution to this effort. For that reason, we plan to close, effective Monday, March 16. “Later today, we will be providing students, parents and staff with more information on our plans to continue providing learning opportunities for students during the closure. We have also directed staff at both districts to prepare to continue providing nutrition and other supports through family resource facilities.” The boards of Los Angeles Unified and San Diego Unified School Districts have unanimously approved this action. San Diego Unified plans to reopen schools on April 6th, unless conditions call for an extension. SDUSD's closures will shutter 113 elementary schools, 24 middle schools, 4 atypical schools, 10 alternative schools, 27 high schools and 25 charter schools.Friday's announcement comes after San Diego County officials issued a public health order banning mass gatherings of 250 people or more through the end of March.READ: San Diego County officials ban large gatherings 2144

SAN DIEGO (KGTV) — Nearly three-quarters of the students in San Diego County are currently learning from home, and those numbers don’t make a lot of sense to MIT professor Martin Bazant.Bazant is one of the creators of the COVID-19 Indoor Safety Guideline. The free online tool simulates the fluid dynamics of respiratory droplets in various kinds of rooms to show users the risk of different indoor environments.“If you run the numbers for a typical classroom, especially if the students and the teachers are wearing masks, then the amount of time in the room can be very significant,” Bazant said. “Essentially those people could spend a week in the classroom and not have a problem.”Bazant says the six-foot rule that has largely determined which businesses can stay open is overly simplistic. In some cases, he says the rule creates a false sense of security. In other situations, he says it causes the closure of businesses or schools that could safely operate.“If you place nursing home beds six feet apart in a shared room, they are absolutely not safe,” he said. But he said well-ventilated classrooms, with teachers and students in masks, are another story.“It's only the United States where we follow the six-foot rule. That's given by the CDC. The World Health Organization all along has been saying one meter, which is about three feet. If you simply followed the one-meter rule, all our schools would be open, as they are in most of the world right now,” he said.Bazant and his colleague John Bush said they set out to design a tool that would reveal the risk of transmission based on science, not guesswork.Users start by selecting a room type, like a classroom or an airplane. From there, they can control a wide array of variables to dial in the risk, like the room size, the ceiling height, and the ventilation and filtration systems.From there, users can further tune the model by human behavior. How many people are in the room? Are they whispering, shouting or singing? How many are wearing masks?Mask usage is a critical component, Bazant says. The model quickly reveals the challenges of maskless activities in rooms with poor ventilation. Put five people without masks in a 400 square foot room with closed windows, and it becomes unsafe after 33 minutes.Bazant says studies on super spreader events show in indoor environments, the distance from an infected person doesn’t matter. Infected droplets spread and mix throughout the room like second-hand smoke from a cigarette.But with masks trapping droplets and diverting them upwards like a chimney, an environment like an airplane could be safe for several hours, according to the model. With more than 95% of the passengers and crew wearing surgical masks, a Boeing 737 could support 200 people -- around full capacity depending on the configuration -- for 18 hours. 2850

SAN DIEGO (KGTV) - Police were called out to investigate the discovery of an old ordnance at a North Park construction site Tuesday.The device was found on the 4000 block of Georgia St. just before 11 a.m.It wasn't immediately clear if the device was live. Police are investigating the device.10News is monitoring this breaking news story. 362

SAN DIEGO (KGTV) - More than 75,000 homes in San Diego are in areas that pose a "high" or "extreme" risk of wildfire, according to a new study by CoreLogic.That's the third most homes in the US, behind only Los Angeles and Riverside.In San Diego, the study found that it would cost .81 billion to rebuild all those homes.The news comes as San Diego, and California as a whole, are in the midst of a relatively tame wildfire season. According to Cal Fire, there have been 4,9267 wildfires so far this year. That's well below the pace of the last two years, when there were 7,571 fires in 2018 and 9,133 fires in 2017.Similarly, the amount of land burned by the fires is down in 2019. So far, 117,586 acres have been scorched. In 2018, the total number was 1,671,203 acres. In 2017, 1,240,606 acres were burned.Cal Fire says cooler temperatures and higher than normal humidity caused the number of wild fires to drop this year."When humidity is up, the fire doesn't burn as aggressively as it could if they were lower," says Cal Fire Captain Isaac Sanchez. "That's played a big factor for us this year."But, Sanchez warns that people shouldn't look at the low numbers and think the risk is also low. He says the next few months will have prime conditions for a devastating fire."We've seen the hottest days we're going to see, the temperatures have been warm, the humidity has been low," says Sanchez. "So the fuels that are in the hillsides right now are receptive to fires."Sanchez says people should remain fire-ready. That means clearing 100 feet of defensible space around your home, having an evacuation plan and taking extra precautions against anything that could spark a wildfire.For more information on preparing, visit readysandiego.org. 1759

SAN DIEGO (KGTV) -- On January 1, it will be legal for businesses to sell pot in California. With that, the questions and concerns about what that means for drivers out on the roads.“I think we will see an increase in DUI marijuana’s,” said Officer John Perdue, a San Diego Police officer in the traffic division.Perdue is an expert at DUI and drug recognition. Since November 8, 2016, when California voters approved Prop. 64, or the adult use of marijuana act, he’s been hearing the same thing when he comes across drivers he suspects are driving high.“Their first reaction is one of two, either A. ‘I have a medical marijuana card’, or B. ‘marijuana is legal.’ And I have to remind them, so is alcohol, but you still can’t drive under the influence of it,” Perdue said.How exactly will police be able to tell if someone is driving high?One tool that officers will use to help is the Drager Drugtest 5000, a presumptive drug screening test that can detect seven types of drugs in a person’s system.Like an alcohol breathalyzer, Perdue said, “the person has every right to refuse this.” But unlike alcohol, it doesn’t have a percent limit.If the Drager reads positive, Perdue said, “it doesn’t necessarily mean they’re impaired or under the influence, it just says that chemical or drug is in their body.”  So to be arrested for DUI, it’s still up to the officer to decide if the driver shows impairment.But that can be tough. Look at the Drager as an extra tool that’s used along with field sobriety tests, what an officer smells, sees or finds in the car, to formulate that officer’s opinion of whether a driver is high.“The hardest thing will be, because there is no per se limit right now, the officers are really going to have to be aware of the signs and symptoms,” Perdue said. 1808

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