www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
China / Cover Story

Missing 'bracelet' sets safety alarm bells ringing

By Cang Wei and Song Wenwei in Nanjing (China Daily) Updated: 2014-05-16 07:33

Missing 'bracelet' sets safety alarm bells ringing

Members of staff from Nanjing Environmental Protection Bureau during the search for the missing ir-192, which was lost on May 7, in Nanjing, Jiangsu province. Provided to China Daily


Increased radioactive sources pose potential risks to life, report Cang Wei and Song Wenwei in Nanjing.

Monitoring procedures for all medical and industrial sources of radioactivity will be strengthened by authorities in Jiangsu province.

The use of radioactive testing equipment will also be suspended in Nanjing, the provincial capital, in August after inspection equipment containing iridium-192 was lost for three days.

A bracelet-shaped loop containing the radioactive material, known as Ir-192, was mislaid by workmen during routine inspections at a construction site in Nanjing's Luhe district on May 7. Authorities said the workmen failed to observe safety procedures while packing equipment.

The loss prompted a major police search and led to a construction site cleaner being hospitalized.

The silvery-white metal is used widely in industrial radiography to check for flaws in metal welds and castings, and in medicine, especially during interior radiotherapy procedures.

The workmen, from Tianjin Hongdi Engineering Inspection Development Co, a division of oil refiner Sinopec, didn't notice the bracelet was missing until the evening of May 8, when they tried to use the equipment and found it was malfunctioning.

The bracelet was found on Saturday afternoon by Yu Jianjun, director of the Getang Community Office in Luhe, who was assisting police and environmental experts in the search. When he discovered the bracelet, which contained a soybean-sized piece of ir-192, Yu sealed it in a plastic box before rushing to show it to the experts. The bracelet was then sealed in a lead-lined container and taken away for disposal.

"I've never run so fast. I can't say I wasn't afraid, but the material had to be recovered ... someone had to do it," Yu said.

The bracelet had been discarded near the community office by a construction site cleaner called Wang, who found it as he was sweeping the floor of the construction company's welding workshop at 8 am on May 7.

Wang said he slipped the bracelet into his pocket because he thought it would make a good key chain, but during his lunch break three hours later, he decided he didn't want it and threw the object into his front yard.

However, after learning that the police were searching for a piece of radioactive material lost at the site, he became afraid, so he wrapped the bracelet in a plastic bag and threw it into bushes near his home at 5 am on May 10.

Wang was later diagnosed with acute, short-term radiation sickness and is now being treated at the Second Affiliated Hospital of Soochow University in Suzhou.

A short history of radioactivity-related incidents 

In 1954, China had its first accident involving radioactive material. From 1954 to 1987, human error, including poor management and lack of professional expertise, caused 84.64 percent of such accidents, according to Fan Shengen, an expert on radiation prevention with the health ministry. Other factors, including technical faults, accounted for less than 20 percent.

In 1986, China had 70 incidents, but from 1988 to 1998, there were 332 involving 966 people, and 584 sources of radioactivity were lost - 256 of them were not recovered - according to the Case Compilation of China's Radiological Accidents 1988-1998, compiled in 2001 by the ministries of health and public security.

In the 1990s, China had 40 times as many incidents as the United States.

In 2004, a survey launched by the environmental and health authorities and the Public Security Bureau found that more than 10,000 agencies across China possessed more than 140,000 sources of radioactivity. The survey also discovered that more than 2,000 sources had gone missing, and the number of sources was growing at an annual rate of 5 to 10 percent.

From 1954 to 2007, 10 people died because of radiation emitted by radioactive sources and in industries in which nuclear techniques were used; 49 people suffered radiation sickness and 16 suffered burns to the skin, according to Liu Senlin, a researcher at the China Institute of Atomic Energy.

From 1954 to 2007, two people suffered radiation sickness after nuclear tests and 52 suffered burns to the skin. No one died or got radiation sickness in the nuclear military industry or nuclear plants.

- Cang Wei 

Previous Page 1 2 3 4 Next Page

Highlights
Hot Topics
...
主站蜘蛛池模板: 国产午夜爽爽窝窝在线观看 | 九九99久久精品国产 | 亚洲人成毛片线播放 | 亚洲美女影院 | 不卡的毛片 | 欧美视频不卡 | 特级欧美午夜aa毛片 | 精品毛片视频 | 欧美一级看片免费观看视频在线 | 99久久免费午夜国产精品 | 成人国产精品视频 | 免费观看久久 | 成人a毛片免费全部播放 | 国产欧美日韩在线人成aaaa | 韩国免费毛片在线看 | 99久久精品国产免费 | 日本毛片免费看 | 成人小视频在线播放 | 美女很黄免费 | 91精品免费久久久久久久久 | 亚洲天堂网站在线 | 美女视频黄a视频免费全程 美女视频黄a视频免费全过程 | 亚洲国产精品线在线观看 | www.黄色免费网站 | 国产亚洲一区二区三区在线观看 | 亚洲人成在线播放网站岛国 | 亚洲高清无在码在线无弹窗 | 免费观看情趣v视频网站 | 国产精品亚洲专区在线播放 | 一区二区三区四区国产精品 | 色一欲一性一乱一区二区三区 | 久久网免费 | 在线精品亚洲欧洲第一页 | 亚洲国产www | 成人一级黄色片 | 国产成人a视频在线观看 | 一区二区三区亚洲 | 天天躁日日躁狠狠躁一级毛片 | 亚洲在成人网在线看 | 一区二区三区欧美日韩国产 | 国产日本在线视频 |