A YELLOW SKY, TOKYO

I had to get up in the middle of the night to attend a call after the sandstorm. The sky was an eerie yellow. Supposedly the sand did come from China.

2013 03 11 Tokyo_

Unfortunately it has led to our learning about PM 2.5 and how Chinese pollution is effecting the region:

Atmospheric particulate matter – also known as particulates or particulate matter (PM) – are tiny pieces of solid or liquid matter associated with the Earth’s atmosphere. They are suspended in the atmosphere as atmospheric aerosol, a term which refers to the particulate/air mixture, as opposed to the particulate matter alone. However, it is common to use the term aerosol to refer to the particulate component alone.[1] Sources of particulate matter can be man made or natural. They can adversely affect human health and also have impacts on climate and precipitation. Subtypes of atmospheric particle matter include suspended particulate matter (SPM), respirable suspended particle (RSP;particles with diameter of 10 micrometres or less), fine particles, and soot.

In speaking with a colleague today he mentioned that when he was a child Tokyo was very polluted due to rapid industrial expansion. Over the years Japan has spent a huge amount of money to clean the air. I was surprised, as smog is not something that I have seen in Tokyo.

The weather has been up and down this week, cold and hot. On this hot day I happened to bring my camera and get a few shots off of Fuji-san and the Tokyo skyline.

2013 03 12 Tokyo_

A gorgeous sunset.

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No smog ….

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