My intuition has always been that there is less air pollution at night because there are fewer cars on the road and fewer factories humming at that time of day. Pollution Time of Day Guesses Apparently, I’m not alone: 139 voted for their guess about what time of day has …
How was air pollution in China’s major cities in 2022? Fortunately, air pollution in most cities improved in 2022 over 2021, but a few cities lagged behind. Let’s take a closer look at how air quality fared in China’s major cities. A Quick Glance Air pollution in 16 major Chinese …
On paper, China’s “war” on air pollution is still underway. But with COVID-19 disrupting the first half of 2020, has air quality really improved? Smart Air analyzed PM2.5 data for 11 of China’s major cities to get to the bottom of it. The data showed average PM2.5 reduced 9% compared …
New data analysis from Smart Air shows that air quality improved in 14 out China’s 15 largest cities. This data suggests China’s “war on air pollution” seems to be working. This analysis uses over 21,000 daily average PM2.5 data points from official sensors around the country. Beijing Famous …
After best January on record, China’s air pollution worsens An analysis by Smart Air of data from pollution stations found that, after Beijing’s best year on record, Beijing PM2.5 levels are now worse than 2017. Data from 11 other major cities showed similar trends. Beijing Compared to …
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 …
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 …
The US Embassy’s complete data for 2016 is now out! Smart Air analyzed the data to see if China’s air got any better in 2016. There are a few reasons to think 2016 was a good year. China has moved to tighten standards on gasoline and diesel and increase renewable …
