Lagos ranks 133rd in world’s most polluted cities — Report
A 2022 World Air Quality Report conducted by IQAir has ranked Lagos State as the 133 world’s most polluted cities (historical data 2017-2022). In its 2022 report on most polluted city ranking which, according to IQAir, is based on annual average PM2.5 concentration (µg/m³), Lagos was said to be “experiencing some rather poor quality air with a US AQI figure of 160, which classified it as ‘unhealthy’, according to recommended figures from the World Health Organisation” at the beginning of 2021. Lagos, with an estimated population of the metropolitan area, was 21 million people as of 2018, has a concentration of its PM2.5 pollutant 73.2 µg/m³. “With a level such as this,” the report says, “it is recommended that a good quality mask is worn when going outside. Doors and windows should be kept closed to prevent the ingress of polluted air into the home. All types of outdoor exercise should be abandoned until air quality improves.” According to IQAir, the major source of air pollution in La...