Did Beijing’s Air Get Better in 2018?

Analyzing new air quality data, Smart Air found that Beijing’s PM2.5 dropped 14% in 2018 compared to the year before. Despite the improvement, Beijing still averages nearly five times the World Health Organization’s annual limit.   Improvement Came Mostly from Winter Enforcement By breaking down the data month by month, analysis shows that the air quality […]

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Reducing Formaldehyde: 3 Things You Need to Know About Formaldehyde (Part 3)

  Amid all the noise about chemicals in the home, these are three scientific, data-backed ways to reduce formaldehyde in the home. Once you’ve understood how to assess formaldehyde in your home and why testing machines are unreliable, here’s how you can act to reduce formaldehyde. Method 1: Open a window, since outdoor air has virtually […]

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Is being in a high pollution city like Delhi India really like smoking a pack a day healthwise?

Comparing air pollution to smoking is a dangerous question. Honest observers (like Richard Saint Cyr MD and Richard Muller) have come up with wildly different answers, from 1/6th of a cigarette a day, to four a day, to claims of 21 cigarettes a day. Here’s why they’re all right.     Two Fundamentally Different Ways of Asking the Question One of the points […]

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35 healthy Shanghai college students used a purifier for 48 hours. Here’s what happened to their bodies

Does air pollution affect the health of young people with no symptoms? Let’s start with three things we know about the science behind air pollution and one really important thing we don’t know.   1. We know that purifiers reduce PM2.5   Loads of tests have found this in labs and in real-world homes. I’ve tested […]

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