Foreign news agencies reported on March 14, 2023 that a new report by IQAir, which monitors air quality around the world, found that more than 90% of countries and territories around the world have a density value of PM2.5 or small dust particles which is less than 2.5 microns in size on average per year. Goes beyond the basic measures set by the World Health Organization (WHO).
IQAir analyzed the average air quality of 131 countries and territories around the world. And they found that only six countries, namely Australia, Estonia, Finland, Grenada, Iceland and New Zealand, along with seven territories in the Pacific and the Caribbean, including Guam and Puerto Rico alone with air quality ” good” or an average PM2.5 of no more than 5 micrograms per cubic metre
Seven countries – Chad, Iraq, Pakistan, Bahrain, Bangladesh, Burkina Faso, Kuwait and India – had “bad” air quality, with average PM2.5 concentrations above 50 micrograms per cubic metre.
The IQAir report focuses on measurements of PM2.5, the smallest but deadliest pollutant. When inhaled, it travels deep into lung tissue before entering the bloodstream. The origin of PM2.5 comes from fossil fuel combustion, dust storms or wildfires. It is linked with many diseases such as asthma, heart and other respiratory diseases. diseases
according to the UN disclosure Globally, millions of people die from health problems related to air pollution, with 4.2 million deaths related to premature deaths related to PM2.5 in 2016.
The IQAir report also revealed that US cities such as Columbus, Atlanta and Chicago have average annual PM2.5 concentrations above 10 micrograms per cubic meter. which is considered to be of poor air quality
while China, which ranks first among countries with poor air quality for decades It has continued to develop. By 2022, nearly 64% of 524 cities in mainland China have The average annual PM2.5 density has decreased, but IQAir warned that China’s coal consumption is still high. which is harmful to the environment and no city had such a favorable climate.
