SZ’s PM2.5 concentration hits record low |
2023-01-16
Shenzhen's PM2.5 concentration dropped from the highest 62 micrograms per cubic meter since the monitoring data was available to 16 micrograms per cubic meter in 2022, hitting a new record low, the city’s ecology and environment bureau said.The city also recorded the lowest levels of four other air pollutants, namely, PM10, carbon monoxide, sulfur dioxide and nitrogen dioxide, last year.Professor Hao Jiming of the School of Envir