China's nitrogen dioxide concentration varies according to season, |
China's nitrogen dioxide concentration varies according to season, |
I have never seen anything like it and I have lived here for 30 years. |
Meteorology also plays a role. There is a peak before Christmas: this is not because industrial activity, domestic heating or transportation is suddenly reduced after the holiday season but because there is an eastward outflow of air that was previously revolving around Asia. This is the same type of phenomenon that carries dust from the Gobi Desert across to the West Coast of the US. |
The instruments are now being used to monitor a significant number of key tropospheric trace gases including formaldehyde, methane, sulphur dioxide and carbon monoxide and dioxide, |
We just want to play and put a really good show on. Since there's going to be a lot of different people there with different tastes, it's a good place to convert some people over to our stuff. |
We want people to hear the stuff we have. That doesn't necessarily mean they'll like it. |
We've definitely gotten a lot tighter since last year. |
While nitrogen dioxide vertical column concentrations above central and eastern Europe and parts of the East Coast of the United States have been either static or exhibiting a small decrease, there is a clear and significant increase over China, |