Sunset from Marunouchi Building with Particulates

Canon EOS 60D, Tamron 18-270mm F/3.5-6.3 Di II VC PZD (92mm, f/8, 1/100 sec, ISO-100)

I did notice that the sun today was clearly different. This sunset, and the sunrise this morning, too, looked yellow and surrounded by the color of dark gray. It didn't take seconds for me to be aware that the air was full of particulates from China (known as PM2.5).

Hmm... I'm quite anxious about the sky...

By the way, this photo is from 35th floor of Marunouchi Building near Tokyo station. You can see not only the sunset, but also the cityscape of Central Tokyo FOR FREE! It is highly recommended to visit here when you drop in at Tokyo station.