From: "Saved by Windows Internet Explorer 8" Subject: Chernobyl: Environmental dead zone or eco-haven? - CNN.com Date: Mon, 7 Feb 2011 11:09:41 -0800 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0000_01CBC6B7.849C9440" X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7600.16543 This is a multi-part message in MIME format. ------=_NextPart_000_0000_01CBC6B7.849C9440 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.cnn.com/2011/WORLD/europe/01/14/chernobyl.nature.radiation.debate/index.html?iref=allsearch
CNN's global series i-List takes you to = a=20 different country each month. In January, we visit Ukraine and look at = changes=20 shaping the country's economy, culture and social fabric.
(CNN) -- The abandoned ruins of the town of Pripyat near the = site of=20 the world's worst nuclear disaster, at Chernobyl in northern Ukraine, = have been=20 crumbling away for almost a quarter of a century.
The absence of humans has seen nature seemingly flourish in the = town's=20 deserted streets, squares and buildings, apparently defying the = radiation that=20 leaked out when reactor number four exploded on April 26 1986.
But how true is this picture?
New research is showing that some plant species appear to be able to = adapt,=20 despite high levels of toxicity.
Scientists studying the seeds harvested from soybean and flax plants = grown=20 inside (five kilometers from the power plant) the exclusion zone found = them to=20 be relatively unaffected by radiation.
Martin Hajduch from the Institute of Plant Genetics and Biotechnology = at the=20 Slovak Academy of Sciences said: "We detected very low radioactivity in = the=20 seeds. In the stem or leaves there is radioactivity, but it is somehow = blocked=20 and doesn't come to the seeds."
Hajduch and his colleagues in Ukraine conducted a proteomic study = (examining=20 the structure and function of proteins) of the plants and found that the = seeds=20 harvested inside the exclusion zone compared favorably with ones grown = in=20 non-contaminated soil outside.
"I cannot recommend eating something from Chernobyl, but I think it = will be=20 possible at some stage," Hajduch said.
He's encouraged by the recovery plants are making at Chernobyl -- an = area he=20 describes as "full of life."
The Chernobyl Forum -- a collection of eight U.N. agencies, = including=20 the International Atomic Energy Agency -- published a report in 2005 = examining,=20 among other things, the environmental legacy of the disaster.
Plant and animal populations had grown since the disaster, they said, = and the=20 exclusion zone had "paradoxically become a unique sanctuary for=20 biodiversity."
But some scientists disagree with the U.N.'s assessment.
Biologist Anders Moller from the University of Paris Sud in France = has been=20 examining the effects of radiation on animals around Chernobyl for two=20 decades.
"Areas with higher radiation have fewer animals, survival and = reproduction is=20 reduced, sperm are abnormal and have reduced swimming ability. = Abnormalities are=20 commonplace and mutations rates are much elevated," Moller said.
Recent studies of bird life in the area by Moller and = Tim=20 Mousseau from the University of South Carolina revealed abnormality rates = running=20 as high as one in 10. A rate Moller says is "astonishing."
Last year, Moller and Mousseau published the results of the largest = census of=20 animal life in the Chernobyl Exclusion Zone. It revealed, contrary to = the=20 Chernobyl Forum's 2005 report, that biodiversity in insects, birds and = mammals=20 is declining.
Not all species are affected by radiation in the same way according = to=20 Moller. Some birds -- including migrant species and long distance = dispersers --=20 are more vulnerable to radiation than others, he said.
Hajduch said animal numbers in the exclusion zone are probably higher = now=20 than before the accident. But that's because there are no humans there = hunting=20 or fishing.
"But if you look at how many species of animals are in the area, I = think it=20 would be less," Hajduch said.
According to Chernobyl.Info, run by the U.N.'s Development Program, = over 40=20 different types of radioactivity were released after the accident.
Cesium remains the most widely dispersed isotope while concerns = remain over=20 long-term contamination from strontium and plutonium.
Cesium and strontium have a half-life of around 30 years. Plutonium, = however,=20 has a half-life of 29,000 years.
The recent decision by Ukraine's government to sanction=20 official tours to the Chernobyl Exclusion Zone, coupled with the = upcoming=20 landmark anniversary, will mean that more tourists will probably visit = than ever=20 before.
Chernobyl tourist Ruben Solaz, who took the stunning gallery images = above on=20 a summer trip to the site in 2008, described his visit as a "very = touching,=20 hair-raising" experience.
Few who enter Chernobyl's "zone of alienation" = would=20 disagree.