Are Japanese Pitta Masks effective for use in China?

It’s allergy season again. Spring is here, and the catkin white fluff is in the air!     Lately, I’ve noticed many people wearing these Pitta masks out on the streets of Beijing.     They look sleek, but I wondered whether they actually work. After all, data shows that Japan’s air quality is much better than China’s, so it’s possible that they were designed for things other than […]

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Fast-Growing India Startup Zomato Installs Smart Air Ladakh Air Purifiers

Smart Air installed 91 Ladakh purifiers (we call them the ‘Blast‘ outside of India) to India’s biggest food delivery startup: Zomato.     Zomato was moving into their new 100,000 square feet office in Gurugram and needed a solution to give their team clean air. Recent painting, new carpets, and remodeling work meant the Zomato […]

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So You Thought Hong Kong’s Pollution Comes From the Mainland? – Supplemental Data

This article includes supplemental data for the main article “So You Thought Hong Kong’s Pollution Comes From the Mainland?” This supplemental data will show how high and low wind speeds affect the PM2.5 levels. Ultimately, this supplemental article draws the same conclusion as the main article.   Does Wind Speed Affect PM2.5? What if particulate […]

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Does the Climate in Bangkok Aggravate the Air Pollution in the City?

I just analyzed Bangkok’s PM2.5 data (what is PM2.5?), and I found it varies systematically by season and time of day. Bangkok Average PM2.5 First, some basics. In 2018, Bangkok averaged 27 micrograms of PM2.5. That puts Bangkok just under three times the WHO annual limit.     Bangkok’s Air Pollution: The Bad News But […]

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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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