On December 21, 2017, as Delhi’s air quality plunged to levels 19 times worse than World Health Organization (WHO) standards, the only consolation its people could take was that things were likely to be worse in other northern cities.
On November 10, 2017, when national attention was focused on Delhi’s poisoned air, the holy city of Varanasi registered worse air quality–a PM 2.5 concentration of 491 micrograms per cubic meter or µg/m³ against Delhi’s 468 µg/m³, according to an IndiaSpend analysis of hourly averages for 24 hours.
A similar situation exists