document: Japan &#039; s &#039; radioactive particles &#039; in Moscow RADIOACTIVITY from Japan 's damaged nuclear reactor has been detected in the atmosphere around the Russian capital Moscow , officials from the municipal facility treating nuclear waste said today . Radon , a company set up in Moscow to monitor radioactivity and dispose of radioactive waste in central Russia , has been detecting traces of iodine and strontium isotopes since last week , deputy director Oleg Polsky said . The minuscule amounts were possible to detect only via the company 's powerful filtering systems and do n't pose any health risks , he said . '' `` Starting March 23rd , we began registering activity , whose make-up corresponds to that which comes from accident situations on nuclear reactors , '' '' the company 's Sergei Gordeyev said . Detected isotopes include radioactive Iodine-131 in aerosol and gas form , cesium-134 and cesium-137 , and tellurium-132 , he said at a press conference in Moscow . Start of sidebar . Skip to end of sidebar . End of sidebar . Return to start of sidebar . '' `` The isotopes confirm that it 's a process connected with the accident , '' '' said Polsky , '' `` but these traces are not dangerous for people . '' '' The earthquake and tsunami that ravaged Japan 's northeast coast and left about 28,000 dead or missing also knocked out reactor cooling systems at the Fukushima plant , which has leaked radiation into the air and sea . Jitters continued throughout Asia this week that radiation had drifted over their territories , even though they emphasised the levels were so small there was no health risk . Traces of radioactive iodine believed to be from Japan 's damaged nuclear plant have even been detected as far afield as Britain , officials said on Tuesday .
extractive_keyphrases: damaged waste filtering emphasised continued missing levels detected atmosphere registering minuscule accident traces believed officials dangerous confirm leaked radiation connected earthquake conference company territories drifted dispose nuclear reactors people cesium137 health risks air small moscow monitor radioactivity tsunami aerosol tellurium132 central russia iodine radioactivity reactor cooling systems no health risk knocked strontium isotopes 28000 dead sea
abstractive_keyphrases: accident situations powerful filtering systems minuscule amounts were possible detected isotopes include radioactive iodine131 not dangerous ravaged japan's northeast coast gas form cesium134 process connected drifted over japan's damaged nuclear reactor treating nuclear waste