Friday, June 12, 2009

Washington nuclear site stung by radioactive wasp nests


نيش هسته ای با راديو اكتيو زنبور مشغول مكاتبها
πυρηνικής εγκατάστασης πληρώνει από ραδιενεργές wasp φωλεών!
Washington radyoaktif eşek arısı yuvaları tarafından sızlatılan nükleer yer!
Washington nukleær siden denne av radioaktive wasp rede!
Washington रेडियोधर्मी बर्र द्वारा रूप-सौदर्य साइट अपने नीड़!אשינגטון שנעקץ על ידי קיני צרעה רדיואקטיביים!
Ουάσιγκτον πυρηνικής εγκατάστασης τσιμπήσει από ραδιενεργά σφήγκα φωλιές.


YAKIMA, Wash. (AP) — If workers cleaning up the nation's most contaminated nuclear site didn't have enough to worry about, now they've got to deal with radioactive wasp nests.
Вашингтон ядерного сайте Стунг радиоактивными WASP гнезда По SHANNON DININNY - 13 часов назад Yakima, Вашингтон (AP) - Если работники очистки нации наиболее загрязненных ядерного сайте не было достаточно, чтобы беспокоиться по поводу, теперь надо решать с радиоактивными WASP гнезда.


ワシントンの核サイトの放射性ハチの巣に刺さシャノンDININNY別- 13時間前ヤキマ、ワシントン(ダウジョーンズ) -労働者については、現在では放射性のハチの巣を持っている懸念に対処するためには十分持っていなかった国で最も汚染の核サイトを洗浄する場合。



Wash. site nucléaire radioactive piqué par des nids de guêpes Par DININNY SHANNON - Il ya 13 heures Yakima, Washington (AP) - Si les travailleurs de nettoyage de la nation la plus contaminés nucléaire du site n'avait pas de quoi s'inquiéter, maintenant ils ont à faire face à des nids de guêpes radioactifs.華盛頓州的核設施的放射性馬蜂蜇燕窩的香農DININNY - 13小時前亞基馬,華盛頓(美聯社) -如果工人清理全國污染最嚴重的核設施沒有足夠的擔心,現在他們必須處理放射性馬蜂築巢。
Mud dauber wasps built the nests, which have been largely abandoned by their flighty owners, in holes at south-central Washington's Hanford nuclear reservation in 2003.
That's when workers finished covering cleaned-up waste sites with fresh topsoil, native plants and straw to help the plants grow — inadvertently creating perfect ground cover for the insects to build their nests. Nearby cleanup work also provided a steady supply of mud, which the wasps used as building material.
Today, the nests, which could number in the thousands, are "fairly highly contaminated" with radioactive isotopes, such as cesium and cobalt, but don't pose a significant threat to workers digging them up.
"You don't know what you're going to run into, and this is probably one of the more unusual situations," said Todd Nelson, spokesman for Washington Closure Hanford, the contractor hired to clean up the area under the oversight of the U.S. Department of Energy.
The wasps largely built their nests in a 75-acre area around H reactor, pulling the mud from the bottom of a storage basin that once held irradiated nuclear fuel.
As for the wasps themselves, they're largely long gone — the insects don't reuse their nests when they colonize each spring.
The federal government created Hanford in the 1940s as part of the top-secret Manhattan Project to build the atomic bomb.
The site produced plutonium for the first atomic blast and for the bomb that was dropped on Nagasaki, Japan, at the end of World War II, and plutonium production continued through the Cold War(.*)
The work left a mess of radioactive and hazardous waste to be cleaned up next to the region's largest waterway, the Columbia River. The effort is expected to last decades and cost more than $50 billion.
Workers started using excavators three weeks ago to dig up the wasp nest-infected area, including vegetation that had already been replanted. Because they are in enclosed cabs on the excavators, no protective clothing is required.
The material is then placed in a container and taken to the onsite landfill for slightly radioactive wastes, said Dave Martin, the company's radiological engineer.
Workers will eventually replant vegetation in the area, at a cost of about $25,000



(*)For mutation by radiactivity in insects, READ this source:



"First Page ImageAnnual Review of EntomologyVol. 7: 81-106 (Volume publication date January 1962) (doi:10.1146/annurev.en.07.010162.000501)
Entomological Aspects of Radiation As Related to Genetics and Physiology
D. S. Grosch"



(Reference web site:http://arjournals.annualreviews.org/doi/abs/10.1146/annurev.en.07.010162.000501)

No comments:

Post a Comment