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.
This article accompanies our article on the reliability of KN95 masks being produced in China during the COVID-19 pandemic. It covers our testing method and provides the original data. China N95 Masks – Test Method During our mask tests, we followed as closely as possible the testing method used to …
The lockdown caused by the COVID-19 epidemic saw the numbers of trucks and buses on the road reduce by 77% and 36%, respectively. Hundreds of factories were also closed for an extended period of time. Despite Smart Air analysis showing an increase in PM2.5 levels during February, there have been …
Delhi often makes headlines as one of the most polluted cities in the world, but has the coronavirus lockdown starting March 25th dramatically cut pollution in the capital? News outlets have reported reductions in pollution, but reports of reductions in Beijing were later disproven by data on the ground. A …
While masks are in short supply during the coronavirus pandemic, the shortage is prompting people to ask if UV light disinfects masks. This is a critical question for frontline healthcare workers, as they scramble for ways to safely re-use masks. Here’s the problem. We know that UV-C light kills …
Recent news reports have proclaimed a dramatic reduction in China’s air pollution during the coronavirus lockdown, yet data shows Beijing has actually seen pollution levels rise during this period. The headlines are based on images from NASA, finding that air pollution dropped 10-30% compared to the same period in 2019. …
A Smart Air analysis of new air quality data found that pollution improved in 2019 in all major cities in india. Small PM2.5 particles in the air decreased from 2018 to 2019 by as much as 15.5%. Delhi Air Quality Even though all cities saw pollution decrease, Delhi saw just …
A Smart Air analysis of new air quality data Beijing’s PM2.5 pollution dropped 11% in 2019 from the year before. Combined with progress in earlier years, Beijing has cut its PM2.5 in half compared to 2014. Beijing’s improvement suggests that the 2013-2017 Clean Air Action Plan, with its tens of …
A Smart Air analysis of 2019 air pollution data found that Shanghai’s PM2.5 improvement has stalled out, actually increasing by 3% over 2018. A tally of “good” air dropped by 9.3% in 2019. In 2018, 32% of days in Shanghai qualified as “good”. In 2019, that dropped to 23%. Daily …
After a big improvement in 2018, new data shows China’s war on air pollution is slowing down. A Smart Air analysis of 2019 PM2.5 data for China’s 15 largest cities found that more than half saw worse air quality over 2018. Maps comparing average PM2.5 in December 2018 to December 2019 …
Can a simple fan and filter really make air purifiers that can clean large offices? Seven years ago, Smart Air started when PhD student Thomas strapped together a DIY air purifier to survive a polluted Beijing winter. Founder Thomas Talhelm‘s first DIY air purifier Thomas published test data on …
