The polluted air that has lingered in Islamabad in recent days was finally dispelled by rain this week, bringing the surrounding Margalla Hills into view once again.
In Lahore, where the situation was most critical, the level of PM2.5 — microscopic particles that lodge deep in the lungs — had dropped to 159 on Wednesday from more than 1,000 during the pollution spike, according to PakistanAirQuality, a citizen-driven monitoring initiative.
But what looks good for Pakistan is still very bad: 159 is six times higher than the World Health Organization’s (WHO) safe limit.
“Question is, can a change from #Hazardous to Very #Unhealthy be called an improvement?” tweeted PakistanAirQuality.
Pakistan is already ranked third in the world — behind…