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SAN FRANCISCO, March 29 (Xinhua) -- Amazon.com Inc. on Tuesday announced the launch of an on-line music storage service,which enables users to store digital music in the cloud and access it from computers and devices running Google's Android operating system.The new service, called "Cloud Drive," offered customers five gigabytes of free storage on Amazon Web servers for all kinds of digital files, including music, photos, videos and documents. For paid plans, users can purchase storage space starting at 20 U.S. dollars a year for 20 gigabytes.The on-line retailer also launched "Cloud Player for Web" and " Cloud Player for Android." The former allows users to get the media files they stored on Amazon's servers from a Web browser on a Mac or PC. The latter lets users play music they have uploaded on Cloud Drive, computers or a smartphone that runs Android operating system.Analysts said Amazon is stepping up its rivalries with Apple and Google. Both companies are also working on similar services, allowing users to store their music on-line and access it from any compatible device.Media reports said that Apple was pushing hard to launch a digital music locker service in April. Google was also reported to be testing its own digital locker service but it still needs to make agreements with major music labels.

LOS ANGELES, April 27 (Xinhua) -- Air pollution poses a threat to the health of about 154 million Americans -- or more than half of the U.S. population, the American Lung Association (ALA) said on Wednesday.The air is so polluted in some areas that it is often dangerous to breathe, the ALA said in its annual report on air quality across the United States.About 48 percent of U.S. residents live in counties where smog (ozone) is too high, 20 percent live in areas where there are too many short-term spikes in pollution and six percent live in areas with harmful year-round soot (particle pollution), said the report.About 17 million Americans live in areas afflicted by all three air pollution hazards, the report noted.The report listed California as the most polluted state, where people are breathing some of the worst air.Compared with other states, California has more polluted places, including Los Angeles, Long Beach, Riverside, Bakersfield and Fresno, the report said.Honolulu in Hawaii and Santa Fe-Espanola in New Mexico are the only two cities in the nation that had no days in which smog and soot levels reached unhealthy ranges, making them the cleanest cities in the nation, said the report.Research suggests air pollution threatens human health -- and not just the lungs.Small particles of pollution can lodge deep in the lungs, triggering an inflammatory process that, over time, can spread elsewhere in the body and damage blood vessels and the heart, according to Dr. Norman Edelman, the ALA's chief medical officer.On days in which smog levels spike, there's an increase in hospital admissions for respiratory illnesses, heart attacks and stroke in the two or three days following it, said Michael Jerrett, a professor of environmental health sciences at University of California, Berkeley's School of Public Health.In addition to posing both long-term and short-term risks, pollution can also contribute to low birth weights, diabetes, cardiovascular disease, heart attack, stroke and, ultimately, shorter life spans, he warned.

BEIJING, Jan. 26 (Xinhua) -- The Chinese government Wednesday raised the minimum down payment requirement for the purchase of second home to 60 percent of the property's value from 50 percent, to curb property market speculation.The decision was announced in a statement released after an executive meeting of the State Council, China's cabinet, which was presided over by Premier Wen Jiabao.File photo taken on Nov. 14, 2010 shows a newly built residential community in east China's Shanghai Municipality.

BEIJING, May 16 (Xinhuanet) -- NASA is close to deciding on a landing site for its Mars rover Curiosity mission by narrowing the choices to four, media reports said Monday.Scientists in the close-knit Mars research community get one last chance to make their case this week when they gather before the "judges" — the team running the 2.5 billion U.S. dollar mission that will soon suggest a landing site to NASA, the ultimate decider."All four of these places are compelling places on Mars to study. There's not a loser among them," said landing site scientist Matt Golombek of the NASA Jet Propulsion Laboratory, one of the meeting's leaders.The mission will use rover Curiosity to study whether a selected area will have environmental conditions suitable for life and for preserving evidence about whether extraterrestial life has existed.Being nuclear-powered, the rover cannot go to a location that has either water or ice within one meter of the surface.The size of a mini Cooper, Curiosity is scheduled to launch in late November after a two-year delay.

WASHINGTON, Feb. 7 (Xinhua) -- The U.S. International Trade Commission (USITC) determined Monday that imports of drill pipe and drill collars from China threatened the U.S. industry with material injury.As a result of the USITC's affirmative threat determinations, the U.S. Commerce Department will issue anti-dumping and countervailing duty orders on imports of these products from China.On January 4, the U.S. Commerce Department announced its affirmative final determinations in the anti-dumping duty and countervailing duty investigations on imports of drill pipe from China. The department determined that Chinese producers and exporters had sold drill pipe in the United States at margins ranging between 0.00 and 69.32 percent, while they have received countervailable subsidies of 18.18 percent ad valorem.In the anti-dumping investigation, mandatory respondent China's DP Master Manufacturing Co., Ltd. and Jiangyin Liangda Drill Pipe Co., Ltd. received a dumping rate of 69.32 percent. Baoshan Iron and Steel Co., Ltd. as well as Shanxi Yida Special Steel Imp. and Exp. Co., Ltd. each received a dumping rate of 0.00 percent, according to the department.The USITC did not specify the combined value of imported drill pipe and drill collars from China in the statement. A determination will be considered as affirmative if there is a 3-3 voting result within the USITC Commissioners.Drill pipe and drill collars are hollow drill string components used in drilling rigs, particularly those intended to extract oil and gas, to transmit power and conduct lubricant during the drilling process.