Japanese researchers develop tiny toxic smog sensor

Japanese researchers say they have developed a smog sensor the size of a finger nail that could be carried around and used to measure pollution in the air that people breathe each day.

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<p><a href="http://www.physorg.com/news131265000.html">Japanese researchers develop tiny toxic smog sensor</a></p> <p>Japanese researchers say they have developed a smog sensor the size of a finger nail that could be carried around and used to measure pollution in the air that people breathe each day.</p>