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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, April 19 (Xinhuanet) -- Almost one year after the disastrous oil spill, scientists believe that the overall health of the Gulf of Mexico as nearly back to normal.However, the scientists restrain their optimism about nature's resiliency with the glaring blemishes out there. It's been nearly a year since BP's Gulf of Mexico oil spill began last April, triggering one of the world's worst environmental disasters. Nearly 5 million barrels of oil leaked from the ruptured Deepwater Horizon well during the months-long catastrophe.BP said last November that the disaster cost it nearly 40 billion U.S. dollars, according to a Guardian report.According to a BP survey of researchers, over three dozen scientists grade the Gulf's big picture health a 68 on average, using a 1-to-100 scale.That's just a few points below the 71 the same researchers gave last summer when asked what grade they would give the ecosystem before the spill. And it's an improvement from the 65 given back in October after months of the oil spill.

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.

BEIJING, Jan. 24 (Xinhua) -- China's top economic planner said Monday that price supervision and control measures have achieved steady progress with 2010's Consumer Price Index, slightly exceeding the target ceiling by 0.3 percentage points to hit 3.3 percent.To rein in soaring commodities prices, joint efforts have been made to manage inflation expectations, promote production, ensure supplies and strengthen price supervision in 2010, said the National Development and Reform Commission (NDRC) in an online statement.Prices of necessities accelerating during the second half of 2010 have been contained with vegetable prices down 9.4 percent in December from the previous month last year, it said.Further, prices of edible vegetable, pork, egg, sugar,liquefied petroleum gas and clothing also decreased significantly in December month on month, the statement said.To cope with rising prices beginning in July 2010, especially prices of basic supplies, the central government promptly introduced joint inter-ministerial meetings to discuss price controls among 17 ministries and ordered local governments to establish the same mechanism, it noted.Local governments have worked on improving agricultural facilities, especially in south China's Hainan province, to increase vegetables supplies for northern cities over the past year, the statement said.The statement forecasts that vegetable planting areas in 2010's autumn and winter will increase 530,000 hectares year on year, sending output to 337 million tonnes.To ensure production and supply, departments have worked to reduce fertilizer exports and promote links between production areas and purchasing areas, it added.Further, relevant authorities also took measures to stabilize prices of electricity and coal, and to ensure smooth transportation of agricultural produce.Authorities also granted temporary subsidies and raised basic wages and minimum living subsidies for urban and rural residents to guarantee people's daily life.

来源：资阳报