China are literally going to run out of clean water in their country soon. "then you should be fine", no it's not just pollution. Their terrible environment is worsening their fundamental resources, like WATER. They need a serious improvement to how they treat their environment, otherwise their country will suffer extreme economical losses.
China is the biggest investor in alternative energy, and, that's very false, in most populated areas of China, that China will run out of water. Tibet and Xinjiang have problems but they bring it in from the East. Otherwise, there's no problems with water. The water, rain, snow, lakes and rivers are all quite full, not to mention all the dambs or the jungle-ish Yunnan (and the avocado belt).