
Air pollution in Singapore has risen to its highest levels in the world, as haze caused by forest fires in Indonesia blankets the region days before the annual Formula 1 weekend in Singapore. Air quality levels in Singapore were in the “very unhealthy” range as of Wednesday afternoon, according to data from IQAir. The nearby city of Kuala Lumpur, which was previously in first place, was ranked as the second most polluted city in the world. In the Malaysian state of Johor, about 140 kilometers (87 miles) northwest of Singapore, there are about 200 schools…