中山便血的人多吗(中山肛门肉刺) (今日更新中)

SAN DIEGO (CNS) - A report released Thursday by the International Boundary and Water Commission found a significant presence of wastewater in border channels in the Tijuana River Basin impacting San Diego.In the report, "Binational Water Quality Study of the Tijuana River and Adjacent Canyons and Drains," scientists from the United States and Mexico collected samples from of seven transboundary channels.The sampling and laboratory analysis for the study were performed from December 2018 to November 2019. The findings indicate the presence of treated and untreated domestic and industrial wastewater.The scientists analyzed 267 different parameters in water and 204 parameters in sediment for pathogens, metals, industrial organics, pesticides, as well as conventional parameters typically found in wastewater. Of the parameters tested, 131 were not detected and 136 had detectable levels.Parameters that exceeded standards in both countries at all monitoring sites are those associated with the presence of wastewater, including ammonia, biochemical oxygen demand, chemical oxygen demand, oils and greases, phosphorus, nitrates, methylene blue active substances and coliform bacteria.Data analysis indicates that the parameters which exceeded standards had originated as uncontrolled sewage spills from Tijuana. Disposal of solid waste or trash contributes to the presence of certain parameters exceeding the standards, such as the organic compound DEHP. Commonly used in the manufacture of plastics, DEHP exceeded applicable standards at all monitoring sites and could have leached from plastic accumulated in the canyons and Tijuana River.The results showed that certain parameters of concern -- Hexavalent Chromium and the pesticides DDT and Aldrin -- were either not detected or found in very low amounts below the limits established in both countries' applicable regulations. Likewise, metals such as copper, nickel and zinc, which are commonly used in the metal plating industry, were detected at levels within applicable standards in both countries.The report also includes recommendations related to control of industrial wastewater discharges in Tijuana, increased resources and assistance for wastewater collection and treatment systems in Tijuana, and continued joint water-quality monitoring and field inspections to detect and respond timely to wastewater flows. 2389

SAN DIEGO (CNS) - Authorities Wednesday publicly identified a Chula Vista city employee found slain in his home near Mount Helix.Chula Vista police personnel conducting a welfare check at the request of a co-worker found the body of 38-year-old Kevin Powell in his residence in the 4400 block of Carmen Drive in Casa De Oro shortly after 1 p.m. Tuesday.Because the neighborhood is in an unincorporated area, the San Diego County Sheriff's Department was called in to take charge of the case, said sheriff's Lt. Thomas Seiver.Powell's death has been ruled a homicide, said Seiver, who declined to specify how the victim is believed to have died."The preliminary cause-of-death (finding) is being withheld for investigative reasons," Seiver said.Powell's work supervisor asked police to check on him after he missed several meetings, according to the sheriff's department. 878

SAN DIEGO (CNS) - A United Airlines flight scheduled to take off from San Diego International Airport was diverted from the runway just before departure Friday due to an undisclosed mechanical issue with one of the plane's engines.Flight 478 was scheduled to take off for Denver shortly before noon, but was recalled while on the airport's taxiway. The plane was safely escorted back to the airport's terminal and the issue occurred at low speed, according to United.``The aircraft safely returned to the gate and customers deplaned normally,'' a United spokesperson said in a statement. ``We are making arrangements to get our customers to their final destination as soon as possible.''Roughly 120 passengers were aboard the flight. United and San Diego International did not disclose the plane's model, and information on a future flight to Denver was not immediately available. 888

SAN DIEGO (CNS) - A man accosted a woman in the Fairmount Village neighborhood early Sunday and took off with her 2003 Toyota Celica, police said.He intercepted the 30-something woman in the 3800 block of 47th Street at 3:35 a.m., as she was heading to her car."The suspect pushed her to the ground and demanded her car keys," said San Diego Police Department officer Tony Martinez. "The victim complied, and the suspect fled in the victim's vehicle."Police said the vehicle's license plate is 6TQG479. The car has a rear spoiler, Martinez said.The suspect is described as a Hispanic male, about 6 feet tall with an average build. He was wearing all dark clothing with a black face mask, police said.Robbery detectives are handling the investigation.Anyone with information is encouraged to call Crime Stoppers at 888- 580-8477. 836

SAN DIEGO (CNS) - NASA astronaut and UC San Diego graduate Kate Rubins arrived aboard the International Space Station Wednesday, where she and two Russian cosmonauts will conduct research over the next six months.Rubins, Sergey Ryzhikov and Sergey Kud-Sverchkov launched from Kazakhstan in the Soyuz MS-17 spacecraft and arrived at the station's Rassvet module at 1:48 a.m. PST following a two-orbit, three-hour flight, according to NASA.The trio joined Expedition 63 Commander Chris Cassidy of NASA and Roscosmos cosmonauts Anatoly Ivanishin and Ivan Vagner, who have been aboard the complex since April. Ryzhikov will become the commander when Expedition 64 begins Oct. 21 and Cassidy, Vagner and Ivanishin will depart for Earth.The spaceflight marks the second for Rubins and Ryzhikov and the first for Kud-Sverchkov, who will live and work aboard the outpost for six months, conducting research in technology development, Earth science, biology, human research and more. NASA says research conducted in microgravity will help prepare for long-duration missions to the Moon and Mars, in addition to improvements for life on Earth.According to NASA, Rubins became the first person to sequence DNA in space during her first spaceflight in 2016.She earned her bachelor's degree in molecular biology from UCSD in 1999, and a doctorate in cancer biology from Stanford University's Medical School Biochemistry Department and Microbiology and Immunology Department in 2005. 1477

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