14 years ago, China's revision of its air quality standard was a global headline, a watershed moment for the country's public health and energy transition. The recent update of that standard was greeted with little fanfare in and outside the country. insearchofgreenchina.com/why-is-china...
insearchofgreenchina.com
Why is China’s new air quality standard the biggest non-news in the world today?
For the first time in fourteen years, China has revised its air quality standards, introducing more stringent criteria for fine particulate matter (PM2.5). According to the new guidelines, cities will only achieve Class II air quality status if their annual mean PM2.5 concentration remains below 25μg/m3, compared to the previous threshold of 35μg/m3. The implementation […]