安康妇产科医院医院(安康怎么预约四维彩超) (今日更新中)

When it comes to airline safety, mechanical problems and security issues are usually a passenger's top concerns. But there's a possible health risk airline crew members call a stinky little secret.Crew members work to keep passengers safe and comfortable when flying but there's a secret they want you to know about in the cabin air. Flight attendants and pilots call it the "dirty sock smell."One flight attendant, who was granted anonymity for this story for fear of losing his job, says that smell sent him to the emergency room last summer."(The) smell kept getting intense, intense. (I) started to get light-headed, wanting to throw up," "Andrew" said. "For almost 15 minutes the smell just kept getting stronger and it didn't go away. That's when I felt extremely sick, light-headed and was hard to breathe."He wasn't the only one with a serious reaction.   "My other flight attendant next to me asked, 'Is that the smell that everyone's been talking about?' Everyone called it the 'dirty sock smell,'" the flight attendant said.According to industry insiders, the source of that foul stench comes from how airplanes are designed. Air in airplane cabins comes from "bleed air" — air that begins as fresh air outside that enters the jet engine. After entering the engine, some of that air "bleeds" off, mixed in with recycled cabin air and then is pumped back into the cabin.When a gasket leaks inside the jet engine, fumes from hydraulic fluids, oils or de-icing agents can enter the cabin.Julie Anderson, a representative from flight attendant union Association of Flight Attendants, says some of the oils that enter the cabin contain neurotoxic additives."Engine oil fumes contain a very complex mixture of chemicals that can include carbon monoxide," Anderson said. She added that the "dirty sock smell" can lead to hypoxia, headache, dizziness, feeling faint, confusion and even incapacitation."That's obviously an issue for flight safety and security," she said.When Andrew's plane landed and the flight attendants' symptoms persisted, they were sent to the emergency room."They said I had a high level of carbon monoxide detected in my blood," he said. Anderson says the industry has known about the problem since the 1950's and she says the solution is elementary. "My 11-year-old can recognize that it doesn't make sense to compress air in an engine that can leak oil, and feed that air to people in an enclosed space, without putting a filter on board," she said. As simple as that sounds, the stink about dirty sock smell is wafting into the courtroom. In an ongoing lawsuit, a group of flight attendants is suing Boeing, claiming their health suffered from a fume event on an Alaska Airlines flight. Boeing declined a request for an interview but issued a statement, saying that "Boeing has not changed its position that cabin air is safe to breathe." (See Boeing's full statement below) Even so, Boeing's new Dreamliner 787 doesn't use bleed air at all. Instead, air is generated by compressors. But that's the only plane in the sky using that system. Flight attendant Andrew is now plagued by a nagging cough and has to use an inhaler, causing him to worry more about travelers.   "I was concerned that if someone got sick, they wouldn't know why they got sick," he said. "My first responsibility is the safety and security of my passengers."Airbus, the FAA and trade organization Airlines for America all issued statements when asked for comment. Airbus stated they are "...not familiar with the events you're talking about" and referred to this study which concludes while concentrates in cabin air are present, they are very low and evidence doesn't show there is a health risk. The European Aviation Safety Agency published studies on cabin air quality in March of 2017. Allegiant and Spirit never responded to a request for comment. United Airlines referred reporters to Airlines for America.STATEMENT FROM BOEING: 4066

While we’re still waiting on a comprehensive COVID-19 vaccine distribution plan, the Johns Hopkins Center for Health Security released an ethics framework Wednesday for who it says should be prioritized.There are two tiers of groups it says should go before the general public. No surprise, the first tier includes front line health care workers taking care of coronavirus patients, people over 65, those with underlying health conditions and their caregivers.Also noted are people who work in the vaccine industry and those who will be administering them. Also, school, food supply and public transportation workers.One issue with that first tier is that's a lot of people, more than 90 million by some estimates.“So, it’s quite possible when a vaccine is available, there won’t be enough available for everybody in this top tier and so there may need to be prioritization within this top tier,” said Dr. Eric Toner, senior scholar at the Johns Hopkins Center for Health Security.The second-tier group includes other health care workers, people living in remote locations without access to quality care, and other essential workers like delivery, military, and first responders.It also includes people who live in places where they can’t socially distance, so inmates and people in shelters.The framework also mentions this is a decision that shouldn't only be made by experts and officials.“The public needs an opportunity to weigh in on this because, after all, they are the ones who are the recipients of the vaccines and whether they get it or not,” said Toner.The good news is the scholars don't see cost as a barrier to the vaccine. And while a vaccine is the best hope for controlling the pandemic, it will not be a magic bullet right away.“If we have a vaccine sometime this winter that’s authorized, it will be many months before everybody has access to it,” said Toner.Some decisions about who gets the vaccine first can't be made until one is ready, because you need to know how it may impact groups like the elderly or pregnant women. 2055

Whoa. Just after noon, a BIG fireball flashed through the sky over Niagara. The @EarthCam CN Tower cameras caught the flash from it at ~12:03:32! Wow, it was bright!#Fireball @amsmeteors pic.twitter.com/6piLtC1Kqt— Scott Sutherland (@ScottWx_TWN) December 2, 2020 271

While my pushing the money drenched but heavily bureaucratic @US_FDA saved five years in the approval of NUMEROUS great new vaccines, it is still a big, old, slow turtle. Get the dam vaccines out NOW, Dr. Hahn @SteveFDA. Stop playing games and start saving lives!!!— Donald J. Trump (@realDonaldTrump) December 11, 2020 333

With Christmas right around the corner, many businesses around San Diego County are getting ready to open their doors to sell fresh Christmas trees. Many of the farms begin welcoming customers the day after Thanksgiving, when people typically start decorating for Christmas. Check out the list below to find out where you can grab a fresh Christmas tree:  378

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