I don't know but some of the air monitors here in California are and have been picking up pollution from China for some time now. No bad yet, but just slowly increasing. I heard on TV, not reliable of course, that Japan was really receiving a cloud of pollution from China. And as they just keep dumping more and more into the air, there is no way any one country can clean up the atmosphere. I also saw that the Yangtze (spelling) River is so polluted that some places it is dangerous to be in. Said they just keep pouring chemical waste and sewage into it and when they finish the Three Gorge Dam it will not be a lake but the largest cesspool in the world. I am not sure of any of this except the air monitors are picking up some of their pollution now and have been for some time. The rest could be exaggerated or made up for the headlines.
Ron
