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US NOAA, Fukushima Radioactive Aerosol Dispersion:http://sos.noaa.gov/Datasets/dataset.php?id=332

In order to assist in detecting leaks, a minute amount of odorant is added to the otherwise colorless and almost odorless gas used by consumers.http://en.wikipedia.org/wiki/Natural_gas The State of Connecticut warns you of what to do if you smell the natural gas odor: http://www.ct.gov/pura/cwp/view.asp?a=3363&q=414248
If you smell a leak the gas utility sends someone out quickly and they try to help find it – in stark contrast to the nuclear industry who try to assure you that all is ok, and even that radiation is good for you! Natural Gas hasn’t always had an odor. That was added subsequent to a 1937 school explosion, where action was prompt, even though it was during the Great Depression. Not so for nuclear accidents, which only result in deeper burial of truths regarding the dangers of radiation. See: https://miningawareness.wordpress.com/2015/01/12/new-london-school-explosion-why-natural-gas-leaks-smell/

No one bothers to add smell to dangerous, deadly radioactive materials, and yet shockingly the nuclear power industry LEGALLY leaks them into the air and water on a routine basis. In fact, the US NRC encourages dilution, as a solution, even though many radionuclides are very long-lived and built up in air and water. Not only do they encourage dilution, but the amounts that US nuclear reactors are allowed to emit into water exceed the US EPA’s clean water act. They dilute and they still exceed the clean water act! Presumably the same is true for air emissions. Recently the US NRC decided that emergency vents for Fukushima style reactors should not be required to have radionuclide filters, making them over half a century behind the UK’s Windscale reactor. Should we wonder that other types of power stations think that they should not have rules either? Why is the Nuclear Industry always allowed to be above the law and a law unto itself?

According to the US NRC: “The transport and dilution of radioactive materials in the form of aerosols, vapors, or gases released into the atmosphere from a nuclear power station are a function of the state of the atmosphere along the plume path, the topography of the region, and the characteristics of the effluents themselves. For a routine airborne release, the concentration of radioactive material in the surrounding region depends on the amount of effluent released; the height of the release; the momentum and buoyancy of the emitted plume; the windspeed, atmospheric stability, and airflow patterns of the site; and various effluent removal mechanisms. Geographic features such as hills, valleys, and large bodies of water greatly influence dispersion and airflow patterns. Surface roughness, including vegetative cover, affects the degree of turbulent mixing. Sites with similar topographical and climatological features can have similar dispersion and airflow patterns, but detailed dispersion patterns are usually unique for each site.

Most gaseous effluents are released from nuclear power plants through tall stacks or vents near the tops of buildings. Certain plant designs can result in other release pathways. For example, auxiliary equipment and major components such as turbines may be housed outside buildings; releases from these components could occur near ground level.” “REGULATORY GUIDE 1.111: METHODS FOR ESTIMATING ATMOSPHERIC TRANSPORT AND DISPERSAL OF GASEOUS EFFLUENTS IN ROUTINE’ RELEAE’S FROM LIGHT-WATER-COOLED REACTORS,” US NRC, 1976 http://pbadupws.nrc.gov/docs/ML1303/ML13038A087.pdf

A homeowner 6/10ths of a mile away from the Millstone Nuclear Reactors told Bill Dedman of MSNBC that: “It makes a hissing noise sometimes at night. That rattles the windows. They let us know when they have that scheduled. They let off the steam at night because no one wants to see the plume,…” (Cited in “Nuclear Neighbors: Population Rises Near US Reactors“, by Bill Dedman, Investigative reporter, msnbc. com, 4/14/2011 See in: http://pbadupws.nrc.gov/docs/ML1235/ML123540604.pdf (Of related interest: http://www.mothballmillstone.org/alerts/millstone-loses-radiation-monitoring-capacity-days-dirtiest-releases/) At least they are warned and know not to go outside. Probably this is not the case for nuclear reactors in less affluent areas, and after a certain distance people will not be warned. Yet, if it is raining, for instance, the radionuclides will drop down.

As the above statement regarding night-time venting makes clear, the nuclear power industry does not want people to SEE the radioactive emissions!
See No Evil Marianne Wildart copyright http://wildar4.wix.com/radiation-free-land
Nuclear Reactors emit water laced with dangerous radionuclides into rivers and oceans, under a dilute and deceive scam, sending the problem “elsewhere”. Here is Millstone Nuclear Power Station pouring radionuclide laced water into the Atlantic ocean at Long Island Sound:Millstone Nuclear Wastewater into Long Island Sound-Atlantic Ocean
See related: http://www.mothballmillstone.org/press-releases/coalition-proposes-millstone-water-tax-for-polluting-and-heating-of-long-island-sound/

Millstone Nuclear Reactors http://en.wikipedia.org/wiki/Millstone_Nuclear_Power_Plant
From Make Radiation Visible:
Make Radiation Visible
One in three Americans lives within 50 miles of a nuclear power plant (MSNBC) that routinely releases radioactive poisons (EPA) into the environment, but there are no public health alerts when these invisible poisons are released into our air and water and the utility companies are only required to make annual reports on their averaged quarterly emissions.

The EPA provides online near real-time data, but the monitors are scantily spread around the U.S – less than 100 recorded the Fukushima plumes when they crossed north America in 2011, although hundreds of citizens now upload real-time radiation readings across our country. We need a multi-agency online real-time national monitoring system to ‘connect the dots’ for public safety.

Commercial nuclear power companies and nuclear regulators in our own government are not doing enough to protect us from the dangers and accumulation of poisons from nuclear sources, so we call on the Nuclear Regulatory Commission (NRC) and the Environmental Protection Agency (EPA) to cooperate in protecting public health and safety by ensuring:

VISIBLE DYE-MARKERS
(like propane & natural gas odor markers)
so radiation can be readily identified
in the event of an emergency
and
PUBLIC HEALTH ALERTS
(like weather or pollen alerts)
whenever radiation is released
into our air, land, or water
and
REAL-TIME ONLINE
MONITORING

(which nuclear power plants already
make available for emergency services)
to upgrade nuclear monitoring
to compatible modern technology
reporting online in real-time
rather than a year later

DYE-MARKERS have been used to observe plumes as far away as 8 miles. First responders and the public need to be able to see a radioactive plume in the event of an emergency at a nuclear power plant – so they can flee away from it, rather than into the path of the plume (a tragedy that happened to school children in Japan). This is a straightforward way to strengthen our emergency preparedness.” Much more information and the petition can be found here: http://www.makeradiationvisible.org