My wife is Thai, we now live in Australia. Back in Thailand she and her mother often used coal for cooking (which is listed in the article as a possible cause)

My wife is Thai, we now live in Australia. Back in Thailand she and her mother often used coal for cooking (which is listed in the article as a possible cause) but after moving to Australia, she no longer used it because it is impractical (the coal is hard to find, the type of stove used for cooking with coal is not readily available, neighbours would complain about the smoke, etc etc). I imagine that most other Asian women who migrated to Western countries face a similar situation and no longer use coal on a daily basis. Also, I am sceptical that cooking oils could be a factor, it seems to me that, at least in the parts of Asia where I have lived, the types of cooking oils used are similar to the ones used in the West. I have seen the comments about mustard oil but its usage seems to be limited to certain countries or regions and not widespread everywhere in Asia, whereas according to the article, the issue affects women from various countries from India to China. EDIT - however some of the comments indicate that other oils, not just mustard oil, also present similar health challenges and they are widely used in several Asian cooking traditions.