PM2.5 is a particulate air pollutant that poses a major health concern to humans. They are tiny pollutants measuring 2.5 microns and below. PM2.5 can enter deep into the lungs and the blood stream. Prolonged exposure to PM2.5 can cause health effects like respiratory and cardiovascular diseases. Learn more about PM2.5, the best way to protect yourself from PM2.5 and other trends here.
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 …
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 …
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 …
Beijing said they would cut air pollution in a plan announced earlier this year (and a few months before and another one back in 2013). But what does the data say? To get to the bottom of it, I analyzed monthly PM2.5 data for 2017 so far and compared it …
There’s good data showing that masks (including surgical masks) really can stop pollution and even have demonstrated physiological benefits. Masks work. But one place data is lacking is for air pollution mask lifespan. Just how long do air pollution masks really last? Really Just One Day? I frequently …
Delhi’s air pollution has raised a lot of concern over the last few years. Awareness peaks in the winter and then wane for the rest of the year. How well does this general awareness fit with the air quality data? Smart Air analyzed PM2.5 data from the pollution monitor at …
A user on Quora asked recently how bad the air pollution in Nepal is. Nepal has glorious mountains and shining temples. But how is the air? I checked the World Health Organization’s global PM2.5 database. According to that database, Kathmandu’s PM2.5 particulate pollution averaged 49 micrograms/m3 in 2013: …
It’s nerd Christmas! The US Embassy’s 2016 PM2.5 data just came out. And there’s a surprise in the data from Beijing and the US Consulate in Chengdu: Chengdu just barely edged out Beijing for highest PM2.5. I had to go out to two decimal places to find that difference. How …
Map of today’s pollution levels across China – 9th September 2016. Source：http://aqicn.org What a glorious day in Beijing! Right now, the US Embassy in Beijing is giving a PM2.5 value of 0. Is summer normally this good? And what’s the pollution like in other parts of China right now? (Short answer: …
In 2008, the Chittranjan National Cancer Institute (CNCI) in Kolkata published the results from a study examining the health of lung function among school children, aged 4-17, in Delhi. To test whether children in Delhi fared worse than those outside of the city, the study compared 11,628 children from different parts …
