In 2021 WHO Updated the worldwide Air Quality Tips, which endorse the maximum Secure degree for PM2.5 annual typical concentration of five μg/m3 or fewer. The rules deliver proof on the hurt air pollution inflicts on human overall health, at even reduced concentrations than Formerly understood. The current guidelines deliver https://www.dailypioneer.com/2025/pioneer-exclusive/no-fuel--fines-soon-for-overage-vehicles-in-capital.html