Air pollution is a growing global issue, that is detrimental to human health and the environment. Major sources of air pollution include manufacturing, power and transport. Some of the major health effects of air pollution are lung and heart diseases. Read more on what air pollution is, global air pollution trends and more here.
Now that 2017 is gone, I analyzed PM2.5 in 19 cities all over China, from Harbin to Guangzhou. I then compared 2017 to the prior three years. For most cities, the trend has been flat or down for about three years. The one exception? Xi’an. While most of …
The image in my head of Nepal is full of sky. Nepal has glorious mountains and shining temples. But how’s the air? According to data from the World Health Organization’s global PM2.5 database, Kathmandu’s particulate pollution (PM2.5) averaged 49 micrograms/m3 in 2013: That fits nicely with 2017 …
Even though PM2.5 levels are falling, years of bad air pollution across China has led to many people installing air purifiers in their homes. Most of us are now breathing cleaner air at home, but what about when we are in public spaces? What’s the air like in that gym …
Beijing said they would cut air pollution in a plan announced in 2017 (and a few months before that and another one back in 2013). But China’s Environment Ministry forecasted that weather conditions this winter would make China’s air pollution particularly bad this winter. What does the data say? Here’s …
Tesla rolled out its “bioweapon defense mode” to lots of fanfare and media attention. Tesla went big: “Bioweapon Defense Mode is not a marketing statement, it is real. You can literally survive a military grade bio attack by sitting in your car.” Elon’s telling the truth, but not the whole truth. …
This post contains supplemental data for the post “Can I Clean or Wash HEPA filters?“. It includes detailed information about the testing method, and the original data, open-sourced for all to view. Click here to view the original article Open Data Particle Capture Tests For the particle capture tests, CK …
Most air purifier companies hide the fact that outdoor air pollution drastically affects air purifier performance – even when used indoors. When outdoor air pollution is bad, purifiers achieve a smaller percentage reduction. It becomes harder to reach safe levels indoors. Here’s what you can do to ensure you are …
We performed a whole load of tests when designing the Blast and Blast Mini purifier. All our data is open for anyone to view. For the nerds out there, download the Excel file below. Download compiled data for the Blast here
I wear a pollution mask in Beijing, and I’ve always taken it off when I get into the subway. That’s because I’ve always assumed air in the subway is better than outside. But am I right to take it off? I’ve heard a lot of Beijingers debating whether air in …
As wildfires were raging across the American West this summer, NPR ran a story on pollution masks people can use to protect themselves from all that air pollution. As a non-expert nerd who has dedicated years to understanding how to live under Beijing’s particulate cloud, I was eager to see …
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