Page 20 - Eric Stevenson News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Brooke we're on the top story of a seven-floor building in san francisco. the radiation detection unit here, this silver box, you can see what it looks like when it's open. some computer equipment. there's a bit of a filtration system that analyzes the air and is able to provide real-time data to the epa. joining us to talk about how this system works is eric stevenson with the bay area air quality management district. he manages this system for the epa. is this pretty simple equipment? explain, give us an overview of how it work. >> the operation is industry straightforward. a volume of air i...

>> reporter: you also clean out the filters, or take them out on a weekly basis and they're analyzed further, correct? >> that's absolutely correct. we take the filters out twice a week. we send them back to montgomery, and they're analyzed for more detailed information. >> reporter: we know there are more than 100 of these across the country. at this point you haven't see any sort of difference, a spike, nothing of that sort. correct? >> that is correct. >> eric stevenson, thanks very much. brooke, again, devices like this fanned out across the united states. as you said the epa is deploys mo...

cooling systems once again. later on in this newscast, i'll be speaking with a man, an american man who was inside one of the facility, actually in a building next to one of the reactors working when the quake hit last friday. >> cracks were opening up on the ground. i looked over at the buildings around me and glass was breaking, lights, sirens, people screaming. >> can you imagine? he's a software engineer there for a couple weeks working on the power plant's computers. he has not spoken to cn nyet. but he will on this tram. we will also check in with our team in tokyo where shrink...

meltdown was suspended. kron4's jonathan bloom explains the latest developments at japan's nuclear plants. >> we're learning that minutes ago, 50 out of the 800 evacuated workers have been allowed back into the facility now that radiation levels some somewhat subsided. they were evacuated for just under an hour from the plant that's located here near the city of sendai. but the situation there remains so dangerous that the vast majority of workers andreds have been told to stay away. >> reporter: after the japanese government declared evacuations, fire continued to burn in the number...

dangerous for the workers to stay. the emergency operation to keep the plant from reaching a meltdown was suspended. kron4's jonathan bloom explains the latest developments at japan's nuclear plants. >> we're learning that minutes ago, 50 out of the 800 evacuated workers have been allowed back into the facility now that radiation levels some somewhat subsided. they were evacuated for just under an hour from the plant that's located here near the city of sendai. but the situation there remains so dangerous that the vast majority of workers andreds have been told to stay away. >> repor...