china races to prevent environmental disaster
Last Updated : GMT 05:21:58
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Last Updated : GMT 05:21:58
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after tanker sinks

China races to prevent environmental disaster

Arab Today, arab today

Arab Today, arab today China races to prevent environmental disaster

Chinese ships scrambled Monday to clean up a massive oil spill after an Iranian
Beijing - Aarb Today

Chinese ships scrambled Monday to clean up a massive oil spill after an Iranian tanker sank off China, raising fears of devastating damage to marine life.

The Sanchi, carrying 136,000 tons of light crude oil from Iran, went under on Sunday after a new and massive fire erupted, sending a cloud of black smoke as high as one kilometer (3,280 feet) above the East China Sea.

The bodies of only three of the 32 crew members have been found since the vessel collided with the CF Crystal, a Hong Kong-registered bulk freighter, on January 6, sparking a fire that Chinese rescue ships struggled to extinguish.

Iranian officials said there was no hope of finding survivors among the crew of 30 Iranians and two Bangladeshis, prompting grief and anger among families of the sailors in Tehran.

The search and rescue effort was canceled and a clean-up began after a fire on the sea surface was finally extinguished on Monday, state broadcaster CCTV reported.

Two ships sprayed chemical agents aimed at dissolving the oil, CCTV said. The spill was 11.5 miles long and up to 4.6 miles wide and located east of the submerged ship, it added. This would amount to an area of some 50 square miles (129 square kilometers).

“This (clean-up) work is one of our focuses. It is also a priority area of our efforts. No one wants to see a large-scale secondary disaster,” said foreign ministry spokesman Lu Kang, adding that the cause of the accident was under investigation.

Alaska-based oil spill consultant Richard Steiner called the accident “the single largest environmental release of petroleum condensate in history.”

“Given the poor condition of the hull of the ship after a week of explosions and fire, it is my assumption that none of the cargo holds or fuel compartments remain intact, and thus all of the condensate and fuel has been released,” Steiner told AFP.

Even if only 20% of the vessel’s cargo was released into the sea, it would still be an amount about equivalent to Alaska’s disastrous 1989 Exxon Valdez crude oil spill, he said.

“I don’t know of any condensate spill into a marine environment larger than 1,000 tons, and most that we know of have been less than one ton,” he said.

The Sanchi’s own fuel tank was able to accommodate some 1,000 tons of heavy diesel, according to Chinese media.

‘WORST SITUATION’
On Sunday state broadcaster CCTV cited Zhang Yong, a senior engineer with China’s State Oceanic Administration, as playing down environmental concerns.

The Sanchi’s light crude would have “less impact on the ocean” than other kinds of oil, and minimal impact on humans given how far offshore the incident occurred, he said.

The accident happened 160 nautical miles east of Shanghai.

But the sinking of the ship before more oil had a chance to burn off was “the worst situation” possible, Ma Jun, director of the Institute of Public and Environmental Affairs, told the Global Times newspaper.

“The condensate oil, a kind of ultra-light oil on Sanchi, is different than other types of crude oil and is poisonous to marine life,” he warned.

Unlike crude, condensate does not form a traditional surface slick when spilt. Instead, it generates a toxic underwater plume of hydrocarbons invisible from the sea surface.

Whales, porpoises, seabirds, fish, and plankton in contact with these hydrocarbons in the East China Sea will either die quickly or develop “sub-lethal injuries” such as physiological impairment, reproductive failure and chronic diseases, said Steiner.

The region is also a crucial spawning site for many large fish species, whose eggs and larvae have “undoubtedly been exposed” to the toxic compounds, he said.

“Just because there is no traditional surface slick does not mean there is minimal impact. While the toxic phase of the spill may only last a few months, the injury to populations could persist much longer,” he said.

He slammed governments for failing to gather environmental data more quickly.

“As no one has been conducting a scientific assessment of (the environmental impact), the governments and ship owners are likely to claim, erroneously, there was limited damage

Source: AFP

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