China - Air Quality Modelling Data - ARIA Technologies

ARIA Technologies provides air quality modelling data worldwide. Modelling systems have the advantage to offer a continuous visualization of the quality of the air we breath in time and in space. Modelling tools have also the advantage to be used as support decision for policy maker. Indeed, the realisation of emission scenario is possible, allowing the stakeholders to test emission restriction measures (such as alternate circulation or industrial limitations) and take the right decisions in case of pollution peaks.
The data proposed here over China are the fruit of a long-term activity of ARIA Technologies in this country. The most recent project is PolEASIA (find more information here: http://web.aria.fr/creator/poleasia/index.php). ARIA Technologies also ran an air quality forecasting system in 2008 during the Beijing Olympic Games.

The data have the resolution of 45/15/5 km from the biggest domain covering the whole China until the smallest one focusing on Beijing and Tianjin. This is what we call the “regional scale” which consists in the modeling at the scale of an agglomeration, where we consider a complete emission inventory, all relevant chemical reactions occurring in the atmosphere represented by 3D mesoscale weather models. At this scale, we can treat the secondary pollutants such as ozone, but we will not have the high resolution needed to represent the maximum values in roadside.