BEIJING - China is moving to tighten control over pollutant emissions from new motor vehicles.A recently revised policy demands stricter emission limits to be gradually placed on carbon monoxide, total hydrocarbons, nitrogen oxides and particulate matter produced by new motor vehicles, according to a Ministry of Environmental Protection statement Wednesday.The ministry will make unified national emission standards for new vehicles, with local authorities encouraged to adopt the standards ahead of schedule. Priority of regulation will be put on heavy-duty diesel vehicles.Authorities will encourage the research and development of automobiles using alternative fuels such as natural gas, liquefied petroleum gas, ethanol and biodiesel. The use of alternative fuel and new energy vehicles should be given preference in urban public transport, sanitation, postal and logistics sectors.The ministry said China's pollution control on motor vehicles should reach an internationally advanced level by 2020, with at least 95 percent of scrapped vehicles recycled.The government unveiled a five-year national clean air action plan in 2013, aiming to improve air quality through measures such as closing factories, limiting cars and replacing coal with clean energy. fabric festival wristbands24 wristbandspersonalized silicone braceletscustom made rubber braceletsjordan wristbandprinted braceletsblack rubber bracelets
Doctors have recently discovered China's first HIV/AIDS patient negative in antibody test but positive in nucleic acid test. Doctors from Peking Union Medical College Hospital have made public their discovery in a paper published on the latest version of Clinical Respiratory Journal, which has attracted wide attention. A man, 46, started visiting hospitals in 2011 as he had sore throat, fever, breathing difficulties and was spitting blood for two months. Though doctors suspected that he might be infected with HIV/AIDS, his antibody test was negative, and thus doctors treated him for lung infection, which did not relieve his symptoms. The man finally sought treatment in Peking Union Medical College Hospital, where doctors found Kaposi sarcoma, a common type of opportunistic tumor among HIV/AIDS patients, in his lungs. Doctors decided to give him the nucleic acid test which came out positive. Two weeks after the diagnosis, the man died. The nucleic acid test has proven to be a significant tool in this case, but due to its cost and technology threshold, it is not recommended as a common way of diagnosis, said Li Taisheng, a doctor from the infection department of Peking Union Medical College Hospital. Li suggested that people could take the nucleic acid test in some situations especially when people worry about the negative antibody test result and are at high risk of infection, such as babies born to mothers with HIV.
