are now published a detailed study of radioactive products detected in the bay of San Francisco. last week also were measured at several stations English Radiation Protection pollution data from the Japanese plant. Of course, the quantities of radioactive material are negligible and the possible effects on human health or the environment undetectable. However, the existence of these data allows an interesting reflection.
We know that radioactive contamination comes from Fukushima because there are no alternative sources of radioactive contamination, fortunately. The measure because the technology of measurement of radioactivity is highly developed and are easily detected amounts minimum, and also because there is radiation protection networks that monitor the environment routinely. In addition radioactive isotopes are diverse and can be studied separately, allowing levels of analysis much more detailed than for other pollutants. And of course, these values \u200b\u200bare measured because the contamination extends throughout the atmosphere and reaches a greater or lesser extent, worldwide.
When an oil spill at sea , which happens more often than some nuclear accidents, pollution also spreads globally. It is not easy to identify hydrocarbons in Malaga spill from the Gulf of Mexico , but not because they are, but because the processes of detection are not as fine as in the nuclear case. And not to mention when talking about gas pollution, CO2 and other gases from burning fossil fuels spread through the entire planet. Today gasoline is unleaded because the lead that had accumulated gas in ancient polar ice. The propellants for deodorants (and other sprays) a few years ago accumulated in the stratosphere, more than 15 km altitude. We know this because there is the ozone layer, and is seriously affected by these gas propellants (also used in the cooling circuits of old refrigerators and air conditioners).
In 1883, Krakatoa, a volcano located between Borneo and Java, erupted explosively releasing into the atmosphere huge amounts and ash. These materials enveloped the earth in a few months, and remained significantly for several years. This resulted in a wonderfully colorful sunsets, blue moons, and changes in the Earth's climate with thermal declines are estimated at 1.2 degrees.
The planet is smaller than we usually travel by pollution air and sea reaching all corners to a greater or lesser extent. At the moment it is swallowing all discharges and diluted to almost go unnoticed, but it is inevitable that the dilution capacity will saturate. It has all the earmarks of the first contaminant accumulation on a global scale which is starting to become problematic is the CO2 and other greenhouse gases.
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