Let's see..."The pollution is concentrated around the Yangtze and Pearl River Deltas"
Yangtze river is pretty much the heart of southern China, Biluochun comes to mind..which is at the downstream of Yangtze, Lake Taihu is often seen in the news for its pollution.
Longjing is a bit south from Yangtze, Hangzhou government does control the pollutions since the city is a landmark for tourists and tea drinkers. Huangshan Maofeng (including Liuan Guapian and Taiping Houkui) to be way north from Yangze. AAAAA-rated natural heritage of China that is.
Pearl River Deltas is south of Guangdong, not many teas I am aware of come from there. Dan Cong's Chaozhou-Shantou is way east from there.
Sorry if this is posted elsewhere, thought it would be pretty relevant here. Does this concern anyone? Nearly 90% of the tea I drink is Chinese Tea.. I wonder how much of it (if any) is affected..
Particularly worried since most of what I drink comes from Fujian, which is sandwiched between the 2 most affected areas, Shanghai and Hong Kong..
lol let's chill, the distance between Shanghai and Hongkong is a large, large covering
my suggestion, choose Puerh tea!