Air Pollution

Air pollution is the #1 topic on this website. Here is the entire collection of articles on this always-hot topic.

Move Over, PM2.5; Ozone is the New Black

Move Over, PM2.5; Ozone is the New Black

Just when I was getting hopeful about the dramatic improvement this year in Beijing’s PM2.5 levels, along comes a summer deluge of local press coverage about what they’re claiming is air pollution’s number two threat: ground-level ozone (臭氧). Recent press reports […]

How To Choose An Air Purifier in China

How To Choose An Air Purifier in China

Isn’t it a total hassle to buy an air purifier in China, especially for expats? Back in places like the USA, when we shop for anything we can luxuriously research using consumer magazines and other review sources, wisely shopping around online […]

Life in China: Survive or Thrive?

Can you thrive in China? Of course you can, as you can anywhere — you just may need to work a bit harder to get there. I offer my thoughts on how to do this with Fergus Thompson, the host of weekly […]

Indoor PM2.5 Under 10: A Noble Goal

Indoor PM2.5 Under 10: A Noble Goal

I’ve recently become quite smugly satisfied that my home’s indoor air is always 80% better than the outdoor air, thanks to a quartet of air purifiers working 24/7. But I no longer think my 80% reduction is good enough, and I now have a […]

Mask Testing: Doing It The Right Way

(UPDATE April 2014: please read my new review of three mask tests.) As a family doctor, I strive to keep my patients and my community healthy by sharing informed, evidence-based advice — in clinic and via my writing. Wellness and […]

Disposable Pollution Masks: Real Test Results!

Disposable Pollution Masks: Real Test Results!

The Shanghai Consumer Rights Protection Commission (上海市消费者权益保护委员会) has hit another home run! Last year,  they published a fantastic report of their independent testing of two dozen air purifiers, which I translated and blogged here. Now they have turned their focus on […]